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TM 1-1520-251-10
TM 9 - 1095 - 206 - 23&P
Operator’s Aviation Unit Maintenance and Aviation Intermediate Maintenance
Manual (Including Repair Parts and Special Tools Lists) for Dispenser,
General Purpose, Aircraft: M130
TM 11 - 5810 - 262 - 10
Operating Procedures for Communications Security Equipment TSEC/KY - 58
in Aircraft Operations
TM 11 - 5841 - 281 - 12
Operator’s and Organizational Maintenance Manual: Doppler Navigation Set
TM 11 - 5841 - 283 - 12
Aviation Unit Maintenance Manual for Radar Signal Detecting Set
TM 11 - 5865 - 200 - 12
Operator’s and Aviation Unit Maintenance Manual Aviation Unit Maintenance
(AVUM) Countermeasures Sets
TM 11 - 5895 - 1199 - 12
Operator’s and Organizational Maintenance for Mark - XII IFF System
TM 55 - 1500 - 342 - 23
Army Aviation Maintenance Engineering Manual: Weight and Balance
TM 55 - 6600 - 200 - 20
Marking of Instruments and Interpretation of Markings
TM 55 - 9150 - 200 - 25
Engine and Transmission Oils, Fuels, and Additives for Army Aircraft
TM 750 - 244 - 1 - 5
Procedures for the Destruction of Aircraft and Associated Equipment to
Prevent Enemy Use
Use or disclosure of this information is subject to the restriction(s) on the title page of this document.
A-2
TM 1-1520-251-10
APPENDIX B
ABBREVIATIONS AND TERMS
A
A
Automatic Range
Altitude
AADS
Airspeed And Direction Sensor
AM
Amplitude Modulation
A/C
Aircraft (Aircraft System)
AMPS
Aviation Mission Planning Station
AND
Alphanumeric Display
A/S
Arm/Safe
ANTS
Alternate Next-To-Shoot
A-ICE
Anti-Ice (Fault Code)
APRCH
Approaching
AAA
Air Defense Gun
APU
Auxiliary Power Unit
ABR
Abbreviation
ARDD
Automatic Roller Detent Decoupler
AC
Alternating Current
ARTY
Artillery
ACC
Accumulator
ARITH
Arithmetic
ACCEL
Accelerometer/Acceleration
AS
Airspeed
ACCPT
Accept
ASE
Aircraft Survivability Equipment
ACK
Acknowledge
ATA
Air-to-Air
ACM
Automatic Control Mode
ATC
Air Traffic Control
ACQ
Acquisition
ATHS
Airborne Target Handover System
ACT
Active
ATK
Attack
ADF
Automatic Direction Finder
ATM
Air Targeting Mode
ADS
Air Data System
ATS
Air Turbine Starter
AFAPD
Air Force Application Program
ATS1
Air Turbine Starter 1
Development
ATS2
Air Turbine Starter 2
AFATDS
Advanced Field Artillery Tactical Data
AUD
Audio
System
AUS
Australian
AFDCT
Air Force Digital
AUTH
Authentication
AGL
Above Ground Level
AUTO
Automatic
AGPU
Aviation Ground Power Unit
AUX
Auxiliary
ALE
Automatic Link Establishment
AWS
Area Weapon System
ALT
Alternate, or Alternate
Missile Channel
AZ
Azimuth
Use or disclosure of this information is subject to the restriction(s) on the title page of this document.
Change 2
B-1
TM 1-1520-251-10
ABBREVIATIONS AND TERMS (cont)
B
B
Black
BLD
Bleed
B/W
Black over White
BN
Battalion
B1 - B6
Designators for bottom row bezel
BNK
Bunker Fuzing
push buttons
BOT
Beginning Of Tape
BARO
Barometric
Bottom
BATT
Battery
BRK
Brake
BCST
Broadcast
BRSIT
Boresight
BDA
Battle Damage Assessment
BRT
Brightness
BDE
Brigade
BRU
Boresight Reticule Unit
BDI
Blade De-ice
BUCS
Back - Up Control System
BIT
Built In Test
BX
Box
BKS
Backspace
BYP
Bypass
C
C
Celsius
CGUN
CPG Gun
C/S
Call Sign
CHAN
Channel
CAL
Calibration
CHK
Check
CATA
Cooperative Air-to-Air
CIPM
Color Image Processing Module
CIU
Communications Interface Unit
CAUT
Caution
CKT
Circuit
CBIT
Continuous Built-in-Test
CKU
CPG Keyboard Unit
CBP
Circuit Breaker Panel
CL
Checklist
CBR
Chemical/Biological/Radiological
CL0
CL0 Clark 1880
CCM
Counter-counter Measure
CL6
CL6 Clark 1886
CCP
Communication Check Point
CLM
CPG LMFD
CDRL
Contract Data Requirements List
CLR
Clear
CEOI
Communication Electronics Operating
Instruction
CMSL
CPG Missile
CEP
Checklist, Emergency Procedures
CNV
Crypto Net Variable
CFR
Code of Federal Regulations
COL
Collision
CG
Center of Gravity
COLL
Collective
Use or disclosure of this information is subject to the restriction(s) on the title page of this document.
B-2
Change 3
TM 1-1520-251-10
ABBREVIATIONS AND TERMS (cont)
C (cont)
COMM
Communication
CRM
CPG RMFD
COMM PANEL
Communication Panel
CSMA
Carrier Sense Multiple Access
COMSEC
Communication Security
CT
Crotale
CON
Contrast
CTR
Center
COOP
Cooperative
CTRLM
Control Measure
COORD
Coordinate
CUF
CPG UFD
CPG
Copilot/Gunner
CURR
Current
D
DAP
Display Adjust Panel
Dual Purpose Warhead
dB
Decibels
DP1
Display Processor #1
DC
Direct Current
DP2
Display Processor #2
DCL
Declutter
DPLR
Doppler
DCU
Data Control Unit
DRA
Data Rate Adapter
DE
Dual Engine
DRVS
Doppler Radar Velocity Sensor
DEC
Digital Electronic Control
DSA
Defense Security Agency
DECR
Decrease
DSENG
Disengage
DEGR
Degraded
DSPL
Display
DEL
Delete
DTC
Data Transfer Cartridge
DEU
Display Electronics Unit
DTM
Data Transfer Module
DH
Dynamic Harmonization
DTR
Data Transfer Receptacle
DIR
Direct
DTU
Data Transfer Unit
Directional
DTV
Day Television
DISCH
Discharge
DVO
Direct View Optics
DIV
Division
DVS
Doppler Velocity Sensor
DMD
Data Message Device
DMS
Data Management System
DWG
Drawing
DP
Display Processor
DWN
Down
Use or disclosure of this information is subject to the restriction(s) on the title page of this document.
Change 2
B-3
TM 1-1520-251-10
ABBREVIATIONS AND TERMS (cont)
E
E1
Engine 1
ENG
Engine
E2
Engine 2
ENG1
Engine 1
ENG2
Engine 2
ECCM
Electronic Counter Counter-Measure
ENTR
Enter
ECS
Environmental Control System
EOCCM
Electro - Optical Counter Counter
ECU
Electronic Control Unit
Measure
EOT
End of Tape
EDC
Error Detection and Correction
EPLRS
Enhanced Position Location
EDT
Edit
Reporting System
EEU
EPMS Electronics Unit
EPMS
Electrical Power Management
System
EFAB
Extended Forward Avionics Bay
ERF
ECCM Remote Fill
EGI
Embedded Global Positioning Inertial
ERR
Error
Navigation System
ESC
Escape
EGT
Exhaust Gas Temperature
ETA
Estimated Time of Arrival
EL
Elevation
ETD
Estimated Time of Departure
ELC
Electrical Load Controller
ETE
Estimated Time Enroute
EUFD
Enhanced Up Front Display
ELC1
EPMS Load Controller 1
EXPND
Expander
ELC2
EPMS Load Controller 2
EXT
External, Exterior
ELT
Emergency Locator Transmitter
EXT1
External Tank 1
EMER
Emergency
EXT2
External Tank 2
ENDR
Endurance
EXTG
Extinguish
F
F
Fahrenheit
FAT
Free Air Temperature
FC
Flight Control(s)
FAAO
Field Artillery Aerial Observer
FCR
Fire Control Radar
FBCB2
Force Battlefield Command for
FDI
Fault Detection and Isolation
Brigade and Below
FDMU
Flight Data Memory Unit
FED
Forward Entry Device
FEBA
Forward Edge of the Battle Area
FM
Frequency Modulation (on UFD)
FEC
Forward Error Correction
FARM
Fuel, Ammo, Rockets, and Missiles
FFAR
Folding Fin Aerial Rocket
FARP
Forward Arming and Refueling Point
FFL
Fuel Flow
Use or disclosure of this information is subject to the restriction(s) on the title page of this document.
B-4
Change 4
TM 1-1520-251-10
ABBREVIATIONS AND TERMS (cont)
F (cont.)
FH
Frequency Hopping
FMC
Flight Management Computer
FH/M
Frequency Hopping/Master
FOC
Focus
fL
Footlamberts
FOR
Field Of Regard
FL
Flechette Warhead
FORM
Formation
FLET
Forward Line of Enemy Troops
FOV
Field of View
FLOT
Forward Line of Own Troops
FPV
Flight Path Vector
FLIR
Forward Looking Infrared
FREQ
Frequency
FS
Fire Support
FRICT
Friction
FSE
Fire Support Element
FSK
Frequency Shift Key
FLR
FCR Lethal Ranges
FT
Feet
FLT
Flight
FTEST
FCR Test
FLTR
Filter
FWD
Forward
FM
Frequency Modulation
FXD
Fixed
G
G
Force of Gravity (32.2 fps2)
GPM
Gallons/Minute
GCU
Generator Control Unit
GPS
Global Positioning System
GPU
Ground Power Unit
GEN
Generator
GRB2
Gearbox 2
GEN1
Generator 1
GRBX
Gearbox
GEN2
Generator 2
G-S
Ground Stow
GEOM
Geometric
GTM
Ground Targeting Mode
GFE
Government Furnished Equipment
GUV
Group User Variable
GHS
Gunner Helmet Sight
Group Unique Variable
GND
Ground
GWT
Gross Weight
H
H
Hazard (HXX)
HDD
Head Down Display
HAD
High Action Display
HDG
Heading
HADS
Helicopter Air Data System
HDU
Helmet Display Unit
Use or disclosure of this information is subject to the restriction(s) on the title page of this document.
Change 2
B-5
TM 1-1520-251-10
ABBREVIATIONS AND TERMS (cont)
H (cont.)
HF
HELLFIRE
HOD
Head Out Display
High Frequency
HPSM
High Power Switching Module
HFM
HELLFIRE Missile
HQ1
Have Quick 1
HFTOF
HELLFIRE Time of Flight
HQ2
Have Quick 2
HI
High
HRS
Hours
HIDAC
High Integrated Air Data Computer
HSP
Hot Start Prevention
HIT
Health Indicator Test
HST
History
HMD
Helmet Mounted Display
HTR
Heater (Fault Code)
HMU
Hydromechanical Unit
HYD
Hydraulic
HO
Handover
Hz
Hertz (1 per second)
I
IAFS
Internal Auxiliary Fuel System
IL
Illumination Warhead
IAS
Indicated Airspeed
IMC
Instrument Meteorological Conditions
IAT
Image Auto Track
IMU
Inertial Measurement Unit
IBIT
Initiated Built-in-Test
IN
Inches of Mercury
IBS
Internal Boresight
INBD
Inboard
ICS
Intercommunication System
INC
Increase
ID
IDM Subscriber
Internet Control Card
IDENT
Identification
INH
Inhibit
IDM
Improved Data Modem
INS CHAR
Insert Character
IFF
Identification Friend or Foe
INT
International
IFM
Improved Frequency Modulation
INTL
Internal
IGE
In-Ground-Effect
INTR
Interior
IGN
Ignition
INU
Inertial Navigation Unit
IGN1
Ignition Engine 1
IP
Internet Protocol
IGN2
Ignition Engine 2
IPAS
Integrated Pressurized Air System
IHADSS
Integrated Helmet And Display Sight
System
IRIS
Infrared Imaging System
IHU
Integrated Helmet Unit
IRJAM
Infrared Jammer
Use or disclosure of this information is subject to the restriction(s) on the title page of this document.
B-6
Change 2
TM 1-1520-251-10
ABBREVIATIONS AND TERMS (cont)
J
JAM
Jammer
JVMF
Joint Variable Message Format
JETT
Jettison
K
K
Kilo
KU
Keyboard Unit
kHz
Kilohertz (1000 per second)
KVA
KiloVolt Ampere
KM
Kilometer
KY-58
Encryption Unit
KN/NM
Knots/Nautical Mile
KTAS
Knots True Airspeed
KYBD
Keyboard (LMP)
L
L
Left
LNET
Longbow Net
L1 - L6
Designators for left column bezel
LO
Low
pushbuttons
LOAL
Lock On After Launch
LASER
Light Amplification by Stimulated
Emission of Radiation
LOBL
Lock On Before Launch
LAT
Latitude
LOG
Logarithmic
lb
Pound
LONG
Longitude
LBA
Longbow Apache
LOS
Line of Sight
LCL
Local
LRFD
Laser Range Finder Designator
LD
Line Of Departure
LRM
Line Replaceable Module
LDU
Lighting Distribution Unit
LST
Laser Spot Tracker
LED
Light Emitted Diode
LRU
Line Replaceable Unit
LH
Left Hand
LT
Laser Tracker
LHG
Left Hand Grip
Light
LK
Lock
LVDT
Linear Variable Displacement
LL
Low Level
Transducer
LMC
Linear Motion Compensation
LVL
Level, Leveling
LMPD
Left MPD
LWR
Laser Warning Receiver
LMP
Load Maintenance Panel
LWT
Left Wing Tip
LNCH
Launcher/Launch
LZ
Landing Zone
Use or disclosure of this information is subject to the restriction(s) on the title page of this document.
Change 2
B-7
TM 1-1520-251-10
ABBREVIATIONS AND TERMS (cont)
M
M
Manual Range (MXX.X)
MMA
Mast Mounted Assembly
Medium (TADS FOV Selection)
MOPP
Mission Oriented Protective Posture
M
Menu (fixed action button on MFD
MP
Multi-Purpose Warhead
bezel)
MAI
Modified Airy
MPD
Multipurpose Display
MAINT
Maintenance
MPNVS
Modernized PNVS
MAN
Manual
MPS
Mission Planning Station
MAX
Maximum
mR
Milliradians
MCG
Multi - Cast Group
MS
Multistate
mB
Millibar
MSG
Message
MDCT
Marine Digital Communication
Terminal
MSL
Missile
Mean Sea Level
MEAS
Measure
MSLS
Missiles
MEV
Modified Everest
MSN
Mission
MGRS
Military Grid Reference System
MHz
Megahertz
MSN1
Mission 1
MSN2
Mission 2
MIC
Microphone
MSTR
Master
MILSPEC
Military Specification
MTADS
Modernized TADS
MIL-STD
Military Standard
MTF
Maintenance Test Flight
MIN
Minimum
MTL
Master Load
Minutes
MTOC
Main Table Of Contents
MIPM
Monochrome Image Processing
Module
MTT
Multi - Target Tracker
MISC
Miscellaneous
MUX
Multiplex
MM
Air-to-air Missile
MWOD
Multiple Word Of Day
N
N
Narrow (TADS FOV Selection)
NF
No Fire Zone
Navigation Range, (NXX:X)
NFOV
Narrow FOV
NAV
Navigation
Ng
Gas Generator Speed
NB
Normal Band
NIU
Nitrogen Inerting Unit
NBC
Nuclear / Biological /Chemical
ND
Nose Down
NM
Nautical Mile
NDB
Non-directional Beacon
NO
Number
Use or disclosure of this information is subject to the restriction(s) on the title page of this document.
B-8
Change 4
TM 1-1520-251-10
ABBREVIATIONS AND TERMS (cont)
N (cont)
NOE/A
Nap-Of-the-Earth/Approach
NT
Night
NOM
Nominal
NTS
Next-To-Shoot
NORM
Normal
NU
Nose Up
Np
Power Turbine Speed
NVM
Non - Volatile Memory
NR
Main Rotor Speed
NVIS
Night Vision Imaging System
NSA
National Security Agency
NVS
Night Vision System
O
OAT
Outside Air Temperature
OPR
Operate
OBS
Outfront Boresight
OPS
Overspeed Protection System
OCR
On - Call Request
ORIDE
Override
ODAS
Omni-Directional Airspeed Sensor
ORT
Optical Relay Tube
ODV
Overspeed Drain Valve
OUTBD
Outboard
OFS
Offset
OVSP
Overspeed
OGE
Out-of-Ground-Effect
OIP
Operation In Progress
OWN
Ownship
P
PA
Pressure Altitude
PL
Page List
PAC
Power Amplifier Coupler
PSI Low
PBIT
Power on Built-in-Test
PLM
Pilot LMFD
PC
Position Confidence
PLRT
Polarity
PLT
Pilot
PCMCIA
Personal Computer Memory Card
International Association
PM
Pre - Planned Message
PD
Point Detonate Warhead
PNL
Panel
PERF
Performance
PNVS
Pilot Night Vision Sensor
PEU
PNVS Electronics Unit
POS
Positive
PF
Priority Fire Zone
POSN
Position
PHS
Pilot Helmet Sight
PP
Present Position
PIU
Processor Interface Unit
Passage Point
Pylon Interface Unit
PPI
Plan Position Indicator
PKU
Pilot KU
PRESS
Pressure
Use or disclosure of this information is subject to the restriction(s) on the title page of this document.
Change 4
B-9
TM 1-1520-251-10
ABBREVIATIONS AND TERMS (cont)
P (cont.)
PREV
Previous
PRSET
Presets
PSI
Pounds per Square Inch
PRFLT
Preflight
PTO
Power Takeoff
PRI
Primary, Priority
PTT
Press To Talk
PRM
Pilot RMFD
PUF
Pilot UFD
PROC
Procedure
PWR
Power
PROG
Progress
PYLN
Pylon
Q
Q
Torque
R
R
Radar Range (Rnn.n)
RFI
Radar Frequency Interferometer
Right
RFJ
Radio Frequency Jammer
R1 - R6
Designators for right column MFD
RH
Right Hand
bezel push buttons
RAD
Radio(s)
RHG
Right Hand Grip
RAD ALT
Radar Altimeter
RIPL
Ripple
RALT
Radar Altimeter
RJAM
Radar Jammer
RAM
Random Access Memory
RKT
Rocket
RC
Remote Fuzed High Explosive
RKTS
Rockets
RCD
Record
RLW
Radar Laser Warning
RCDR
Recorder
RCVR
Receiver
RLWR
Radar Laser Warning Receiver
RDR
Radar
RMAP
Radar Map
RDY
Ready
RMPD
Right MPD
REC
Receive
RMP
Reprogrammable Micro Processor
RECT
Rectifier
RNDS
Rounds
REJCT
Reject
RNG
Range
REN
Rename
RPLY
Reply
RF
Radio Frequency
RFD
Rangefinder Designator
RPT
Report
RFHO
RF Handover
RST
Reset
Use or disclosure of this information is subject to the restriction(s) on the title page of this document.
B-10
Change 2
TM 1-1520-251-10
ABBREVIATIONS AND TERMS (cont)
R (cont.)
RSV
Reserve
RVDT
Rotary Variable Displacement
Transducer
RTCL
Reticle
RVS
Reverse
RTE
Route
RVW
Review
RTM
Route Menu
RWND
Rewind
RTOF
Rocket Time Of Flight
RWR
Radar Warning Receiver
RTR
Rotor
RWT
Right Wing Tip
RTS
Radio Transmit Select
RX
Receive
S
S
Surveillance Fixed Wing
SIP
Software Improvement Program
SA
Situational Awareness
SINC
SINCGARS
SINCGARS
Single Channel Ground and Airborne
SAL
Semi-Active Laser
Radio System
SAM
Surface to Air Missile
SK
Smoke Warhead
SANUC
Scene Assisted None Uniformity
SKR
Seeker
Correction
SOI
Signal Operating Instructions
SAS
Stability Augmentation (Sub)System
SOV
Shut Off Valve
SC
Single Channel
SP
System Processor
SP1
System Processor 1
Scale
SP2
System Processor 2
SDD
Subsystem Design Document
SPAD
Shear Pin Actuated Decoupler
SE
Single Engine
SPD
Speed
SEC
Second
SPQ
Super Quick Fuzing
SEG
Segment
SQL
Squelch
SEL
Select
SRCH
Search
SSU
Sensor Surveying Unit
SENS
Sensitivity
ST
Stores/Store (Target Store)
SEU
Sight Electronics Unit
STAB
Stabilator
SFR
Specific Fuel Range
STBY
Standby
SHA
Shot-At
STO
Store
SIG
Signal
SUB
Subscriber
SIM
Simulated
SUFFX
Suffix
Use or disclosure of this information is subject to the restriction(s) on the title page of this document.
Change 4
B-11
TM 1-1520-251-10
ABBREVIATIONS AND TERMS (cont)
S (cont.)
SVA
Selector Valve Assembly
SYM
Symbology/Symbol
SWS
Switches
SYS
System
T
T
Target/Threat (TXX)
TDC
Time Dispersal Coding
T1 - T6
Designators for top row MFD
TOD
Time of Day
bezel push buttons
TOF
Time Of Flight
TACFIRE
Tactical Fire
TOT
Total
TADS
Target Acquisition Designation Sight
TPM
Terrain Profiles Mode
TAS
True Airspeed
TRAJ
Trajectory
TBD
To Be Determined
TRANSEC
Transmission Security
TDC
Time - Dispersive Coding
TRGT
Target
TEMP
Temperature
TRK
Track(er)
TESS
Tactical Engagement Simulation
TRNG
Training
System
TRP
Target Reference Point
TFL
Through Flight
TRU
Transformer Rectifier Unit
TGT
Target
TRU1
Transformer Rectifier Unit 1
TGT
Turbine Gas Temperature
TRU2
Transformer Rectifier Unit 2
TI
Tactical Internet
TSD
Tactical Situation Display
TICD
Tactical Internet Controller Device
TSET
Training Set
THRT
Threat
TV
Television
TNET
TACFIRE Net
TX
Transmit
TOC
Tactical Operations Center
TYP
Type
U
UAB
Underwater Acoustic Beacon
URB
Utility Relay Box
URN
Unit Reference Number
UFD
Up-Front Display
UTC
Universal Coordinated Time
UH
Ultra High Frequency (UFD only)
UTL
Utility
UHF
Ultra High Frequency
UTM
Universal Transverse Mercator
UPT
Update
UTO
Unit Task Organization
Use or disclosure of this information is subject to the restriction(s) on the title page of this document.
B-12
Change 2
TM 1-1520-251-10
ABBREVIATIONS AND TERMS (cont)
V
V/RET
Visor Retract
VID
Video
VCCS
Vapor Cycle Cooling System
VLV
Valve (Fault Code)
VNE
Velocity-Not-to-Exceed
VCR
Video Cassette Recorder
VO
View Only
VERS
Version
VOX
Voice Transmit
VH
Very High Frequency (UFD only)
VRTR
Voltage Regulated Transformer
VHF
Very High Frequency
Rectifier
VIB
Vibration
VSSE
Velocity Safe Single Engine
W
W
Waypoint (WXX)
WFOV
Wide Field Of View
White
WHT
White
Wide
WOD
Word of Day
W72
World GEO System 72
WP
White Phosphorus Warhead
W84
World GEO System 84
Weapons Processor
WAR
War Office
WP1
Weapons Processor 1
W/B
White over Black
WP2
Weapons Processor 2
WARN
Warning
WPN
Weapon/Weapon System
WAS
Weapons Action Switch
WPT
Waypoint
WB
Wide Band
WCA
Warning/Caution/Advisory
WPTHZ
Waypoint Hazard
WDAY
Word Day
WSPS
Wire Strike Protection System
X
XX
(Test Symbol)
XMSN
Transmission
XFEED
Crossfeed
XMSN1
Transmission 1
XFEED1
Crossfeed Engine 1
XMSN2
Transmission 2
XFEED2
Crossfeed Engine 2
XPNDR
Transponder
XFER
Transfer
XMIT
Transmit
XSTART
Cross Start (Fault Code)
Use or disclosure of this information is subject to the restriction(s) on the title page of this document.
Change 2
B-13
TM 1-1520-251-10
ABBREVIATIONS AND TERMS (cont)
Y
Z
Z
Zoom
ZN
Zone
Zulu
Use or disclosure of this information is subject to the restriction(s) on the title page of this document.
B-14
Change 2
TM 1-1520-251-10
APPENDIX C
TWO LETTER IDENTIFIERS AND SYMBOLS
ID SYMBOL LINE SYMBOL NAME
ID SYMBOL WAYPOINT & HAZARD
SYMBOL NAME (cont)
BL
Unit Boundary Line
TU
Tower - Under 1000’ AGL
FB
Forward Edge of Battle Area
00
FE
Forward Line of Enemy
WL
Wires - Power Transmission
00
Troops
Lines
FO
Forward Line of Own Troops
WP
Waypoint
00
FS
Fire Support Coordination
Line
WS
Wires - Telephone and
00
Electric
LD
Line of Departure
PL
Phase Line
ID
SYMBOL
CONTROL MEASURES
ID
SYMBOL AREA SYMBOL NAME
SYMBOL NAME
AB
Friendly Airborne
EA
Engagement Area
AAA
AD
Friendly Air Defense
AAA
AH
Friendly Attack Helicopter
AAA
ID
SYMBOL ZONE SYMBOL NAME
NF
NF Zone
AM
Friendly Armor
AAA
PF
PF Zone
AS
Friendly Air Assault
AAA
AV
Friendly Air Cavalry
AAA
ID
SYMBOL
WAYPOINT & HAZARD
CA
Friendly Armored Cavalry
AAA
SYMBOL NAME
CF
Friendly Chemical
CC
Communication Check Point
AAA
00
CC
LZ
Landing Zone
DC
Friendly Decontamination
00
LZ
AAA
D
C
PP
Passage Point
EN
Friendly Engineer
00
PP
AAA
RP
Release Point
FG
Friendly General Army
00
RP
AAA
Helicopter
SP
Start Point
FI
Friendly Infantry
00
SP
AAA
TO
Tower - Over 1000’ AGL
FL
Friendly Field Artillery
00
AAA
Use or disclosure of this information is subject to the restriction(s) on the title page of this document.
C-1
TM 1-1520-251-10
ID
SYMBOL
CONTROL MEASURES
ID
SYMBOL
CONTROL MEASURES
SYMBOL NAME (cont)
SYMBOL NAME (cont)
FU
Friendly Unit ID
EU
Enemy Unit ID
AAA
AAA
FW
Friendly Electronic Warfare
EV
Enemy Air Cavalry
AAA
EW
AAA
HO
Friendly Hospital Aid Station
EX
Enemy Medical
AAA
AAA
MA
Friendly Aviation Maintenance
HG
Enemy General Army
AAA
AAA
Helicopter
MD
Friendly Medical
ME
Enemy Aviation Maintenance
AAA
AAA
MI
Friendly Mechanized Infantry
WE
Enemy Fixed Wing
AAA
AAA
TC
Friendly Tactical Operations
WR
Enemy Electronic Warfare
AAA
AAA
EW
TOC
Center
WF
Friendly Fixed Wing
AA
Assembly Area
AAA
AA
00
CE
Enemy Chemical
AG
AAA
Airfield - General
AAA
DE
Enemy Decontamination
AI
AAA
Airfield - Instrumented
AAA
D
C
I
EA
Enemy Armor
AL
AAA
Lighted Airport
AAA
EB
Enemy Airborne
AP
ACP
Air Control Point
AAA
00
EC
Enemy Armored Cavalry
BD
Brigade
AAA
ED
Enemy Air Defense
BN
Battalion
AAA
EE
Enemy Engineer
BP
Battle Position
AAA
BP
00
EF
Enemy Field Artillery
BR
Bridge or Gap
AAA
00
EH
Enemy Hospital/ Aid Station
CO
Company
AAA
EI
Enemy Infantry
CP
Checkpoint
AAA
00
CP
EK
Enemy Attack Helicopter
CR
CORPS
AAA
EM
Enemy Mechanized Infantry
DI
Division
AAA
ES
Enemy Air Assault
F1
AA0
Artillery Fire Registration/
AAA
Concentration Point - Part 1
ET
Enemy Tactical Operations
F2
000
Artillery Fire Registration/
AAA
TOC
Center
Concentration Point - Part 2
Use or disclosure of this information is subject to the restriction(s) on the title page of this document.
C-2
TM 1-1520-251-10
ID
SYMBOL
CONTROL MEASURES
ID
SYMBOL TARGETS & THREATS
SYMBOL NAME (cont)
SYMBOL NAME (cont)
FA
FAA
Forward Assembly Area
5
5
SA-5 ADU
00
FC
FARP - Fuel and
6
6
SA-6 ADU
AAA
Ammunition
00
7
7
SA-7 ADU
FF
AAA
FARP - Fuel Only
8
8
SA-8 ADU
00
9
9
SA-9 ADU
FM
AAA
FARP Ammunition Only
00
10
1
0
SA-10 ADU
GL
AAA
Ground Lights/ Small Town
11
1
1
SA-11 ADU
GP
Regiment/ Group
12
1
2
SA-12 ADU
HA
Holding Area
HA
13
1
3
SA-13/19 ADU
00
ID
IDM Subscriber
14
1
4
SA-14 ADU
AAA
BE
Nondirectional Beacon (NDB)
AAA
15
1
5
SA-15 ADU
NB
Nuclear, Biological, and
16
1
6
SA-16 ADU
Chemical Contaminated Area
RH
Railhead - point
00
17
1
7
SA-17 ADU
US
US Army
S6
S
6
ADU
ZU
Z
U
ZSU - 23/4 ADU
AS
A
S
ASIPDE ADU
ID
SYMBOL TARGETS & THREATS
83
8
3
M1983 ADU
SYMBOL NAME
TG
Target ID
T
HK
H
K
HAWK/IHAWK ADU
GU
Generic ADU
RO
R
O
ROLAND ADU
1
1
SA-1 ADU
AA
A
A
AAA (u
57mm) ADU
2
2
SA-2 ADU
C2
C
2
CSA - 21/X ADU
3
3
SA-3 ADU
CT
C
T
CROTALE ADU
4
4
SA-4 ADU
Use or disclosure of this information is subject to the restriction(s) on the title page of this document.
C-3
TM 1-1520-251-10
ID
SYMBOL TARGETS & THREATS
ID
SYMBOL TARGETS & THREATS
SYMBOL NAME (cont)
SYMBOL NAME (cont)
RA
R
A
RAPIER ADU
BH
BLOODHOUND Towed Multi-
B
H
vehicle SAM ADU
GT
G
T
Towed Air Defense Gun
SS
SHORTS STARSTREAK ADU
S
S
(§
57mm)
GS
G
S
Self-Propelled Air Defense
JA
SHORTS JAVELIN ADU
Gun (¦
57mm)
J
A
TR
Target Acquisition Radar
BP
SHORTS BLOWPIPW ADU
B
P
U
Unknown ADU
U
SM
SAMP ADU
SA
S
A
Towed Multi-vehicle SAM ADU
S
M
SP
S
P
Self-Propelled SAM ADU
SC
SATCP ADU
S
C
70
RBS-70 ADU
7
0
SH
SHAHINE/R440 ADU
S
H
SR
Battlefield Surveillance Radar
GP
GEPARD Towed ADG
G
P
NV
Naval ADU
(
57mm)
N
V
VU
VULCAN Towed ADG
V
U
G1
G
1
Growth 1 ADU
(
57mm)
MK
Marconi MARKSMAN ADU
G2
Growth 2 ADU
M
K
G
2
SB
S
B
SABRE ADU
G3
G
3
Growth 3 ADU
AX
A
X
AMX-13 ADU
G4
G
4
Growth 4 ADU
AD
A
D
Friendly ADU
PT
P
T
M1M-104 PATRIOT ADU
ST
S
T
STINGER or LAW-ADS ADU
RE
R
E
REDEYE ADU
ID
SYMBOL GROWTH SYMBOLS
Z1
(Growth, Friendly)
CH
C
H
CHAPARRAL ADU
Z2
(Growth, Friendly)
Z3
(Growth, Friendly)
TC
TIGERCAT Towed Multi-ve-
T
C
hicle SAM ADU
Z4
(Growth, Enemy)
SD
SPADA Towed Multi-vehicle
Z5
(Growth, Enemy)
S
D
SAM ADU
Z6
(Growth, Enemy)
Use or disclosure of this information is subject to the restriction(s) on the title page of this document.
C-4
TM 1-1520-251-10
ID SYMBOL
SA SYMBOLS
N/A
(SA, Unknown) Yellow
N/A
(SA, Friendly) Blue
N/A
(SA, Unknown ADA) Yellow
N/A
(SA, Enemy) Red
N/A
(SA, Enemy ADA) Red
Use or disclosure of this information is subject to the restriction(s) on the title page of this document.
Change 3
C-5/(C-6 blank)
TM 1-1520-251-10
APPENDIX D
Radar Frequency Interferometer (RFI) Detected
and Fire Control Radar (FCR) Merged Symbols
Table
D-1.
Radar Frequency Interferometer (RFI) Detected Symbols
TYPE
FINE DETECTION
COARSE DETECTION
2S6 ADU
S
6
S
6
ZSU 23-4 ADU
Z
U
Z
U
ASPIDE ADU
A
S
A
S
SA-6 ADU
6
6
SA-8 ADU
8
8
SA-11 ADU
1
1
1
1
SA-12 ADU
1
2
1
2
SA-13/19 ADU
1
3
1
3
SA-15 ADU
1
5
1
5
SA-17 ADU
1
7
1
7
M1983/M1994
8
3
8
3
ADU
HAWK/IHAWK
H
K
H
K
ADU
ROLAND ADU
R
O
R
O
AAA (§
57mm)
A
A
A
A
ADU
CSA-21/X ADU
C
2
C
2
CROTALE ADU
C
T
C
T
Use or disclosure of this information is subject to the restriction(s) on the title page of this document.
Change 4
D-1
TM 1-1520-251-10
Table D-1.
Radar Frequency Interferometer (RFI) Detected Symbols (cont)
TYPE
FINE DETECTION
COARSE DETECTION
RAPIER ADU
R
A
R
A
Self-Propelled Air
G
S
Defense Gun
G
S
(¦
57mm)
Target Acquisition
T
R
T
R
Radar
Towed Multi-vehicle
S
A
S
A
SAM ADU
Unknown ADU
U
U
Self-Propelled SAM
S
P
S
P
ADU
RBS-70 ADU
7
0
7
0
Battlefield Surveil-
S
R
lance Radar
S
R
Naval ADU
N
V
N
V
ATG Missile
A
T
A
T
ATA Missile
M
M
M
M
TEST
X
X
X
X
Growth 1 ADU
G
1
G
1
Growth 2 ADU
G
2
G
2
Growth 3 ADU
G
3
G
3
Growth 4 ADU
G
4
G
4
Use or disclosure of this information is subject to the restriction(s) on the title page of this document.
D-2
TM 1-1520-251-10
Table D-2. Fire Control Radar (FCR) Merged Symbols
TYPE
STATIONARY LOAL
MOVING LOBL
STATIONARY LOBL
2S6 Air Defense Unit (ADU)
S
6
S
6
S
6
ZSU-23/4 ADU
Z
U
Z
U
Z
U
ASPIDE ADU
A
S
A
S
N
A
SA-6 ADU
6
6
N
A
SA-8 ADU
8
8
8
SA-11 ADU
1
1
1
1
N
A
SA-12 ADU
1
2
1
2
N
A
SA-13 ADU
1
3
1
3
N
A
SA-15 ADU
1
5
1
5
1
5
SA-17 ADU
1
7
1
7
N
A
M1983/M1994 ADU
8
3
8
3
N
A
HAWK/IHAWK ADU
H
K
H
K
N
A
ROLAND ADU
R
O
R
O
N
A
AAA (§
57mm) ADU
A
A
A
A
N
A
CSA-21/X ADU
C
2
C
2
N
A
CROTALE ADU
C
T
C
T
N
A
RAPIER ADU
R
A
R
A
N
A
Towed Air Defense Gun
G
T
G
T
N
A
(§
57mm
Self-Propelled Air Defense Gun
G
S
G
S
N
A
(¦
57mm)
Target Acquisition Radar
T
R
T
R
N
A
Use or disclosure of this information is subject to the restriction(s) on the title page of this document.
Change 4
D-3
TM 1-1520-251-10
Table D-2. Fire Control Radar (FCR) Merged Symbols (cont)
TYPE
STATIONARY LOAL
MOVING LOBL
STATIONARY LOBL
Towed Multi-vehicle SAM ADU
S
A
S
A
N
A
Air To Ground (ATG) Missile
A
T
A
T
A
T
Air To Air (ATA) Missile
M
M
N
A
N
A
RBS-70 ADU
7
0
7
0
N
A
Battlefield Surveillance Radar
S
R
N
A
N
A
Naval ADU
N
V
N
A
N
A
Test
X
X
N
A
N
A
Self-Propelled SAM ADU
S
P
S P
S
P
Growth 1 ADU
G
1
G
1
G
1
Growth 2 ADU
G
2
G
2
G
2
Growth 3 ADU
G
3
G
3
G
3
Growth 4 ADU
G
4
G
4
G
4
Fixed Wing Blue
N
A
N
A
V
B
Fixed Wing Grey
N
A
V
G
N
A
Fixed Wing Red
N
A
V
R
N
A
Use or disclosure of this information is subject to the restriction(s) on the title page of this document.
D-4
Change 4
TM 1-1520-251-10
ALPHABETICAL INDEX
Subject
Page No.
Subject
Page No.
Numbers
ABORT Button
3-66.26
3-66.34
3D EYE (figure)
3A-122.3
3-66.51
3-66.54
3D EYE Button
3A-122.3
3A-38
3D VIEW (figure)
3A-122
3A-42
3A-66
3A-152
A
Abort RPT and ARTY Mission Threads .
3A-160
Aborting Engine Start
9-16
A/C COLOR BAND MAP (figure)
3A-120
ABR Page (figure)
3-83
A/C Heading Map Freeze Cue
4-116
3A-124
A/C UTIL Page, Pilot (figure)
2-70
AC Electrical System
2-91
2-76
AC Power Controls
2-93
2-79
AC Power Distribution (figure)
2-84
Aircraft CHECK FIRE Message
3A-100.17
2-84.1
Abbreviation (ABR) Page
3-83
AC Power Indications
2-93
3A-124
Accept (ACCEPT) Button
3-103
Abbreviation Listing Page 1 Mode (table) .
3-83
3A-144
Abbreviation Listing Page 2 Mode (table) .
3-84
ACCESS RANK Button
3A-24
Accessory Section Module
2-33
Abbreviation Listing Page 3 Mode (table) .
3-84
Accumulator Isolation Valve
2-65
Abbreviation Listing Page 4 Mode (table) .
3-85
Accumulator, Return, Utility Hydraulic .
2-66
Abbreviation Listing Page 5 Mode (table) .
3-85
Accumulator, Utility Hydraulic
2-65
Abbreviation Listing Page 6 Mode (table) .
3-86
ACFT/COMM Page - Pilot (figure)
2-133
Abbreviation Listing Page 7 Mode (table) .
3-86
ACQ Button
4-4
Abbreviation Listing Page 8 Mode (table) .
3-87
ACQ Select RFL
4-58
Abbreviations and Terms, Appendix B .
1-1
ACQ Select Status Window
4-5
Abbreviations Listing Page 1 Mode (table) .
3A-125
Acquisition (ACQ) Button
3-73
Abbreviations Listing Page 2 Mode (table) .
3A-125
3A-108
Acquisition Select Status Field
4-26
Abbreviations Listing Page 3 Mode (table) .
3A-126
Acquisition Source Selection
4-61
Abbreviations Listing Page 4 Mode (table) .
3A-126
Activate FH Mode Procedure
3-45
Abbreviations Listing Page 5 Mode (table) .
3A-127
Activate Frequency Hopping Mode .
3-66.60
Abbreviations Listing Page 6 Mode (table) .
3A-127
3A-76
Abbreviations Listing Page 7 Mode (table) .
3A-128
Activation of HAVEQUICK
Abbreviations Listing Page 8 Mode (table) .
3A-128
(Frequency Hopping)
3-43
3-66.58
Abbreviations, 701 Engine
7-8
3A-74
Abbreviations, 701C Engine
7A-8
Active (ACT) Button
3-103
Abort AF Mission Thread
3A-160
3A-142
Use or disclosure of this information is subject to the restriction(s) on the title page of this document.
Change 4
Index 1
TM 1-1520-251-10
Subject
Page No.
Subject
Page No.
ACTIVE (ACTIVE) Button
3-104
AF Page OBS SFTY Selected (figure) .
3A-152
3A-144
Aft Deck Fire
2-29
Active Defense Subsystems
4-108
After Emergency Action
9-2
Active Warnings and Cautions -
After Landing Check
8-15
In Flight (figure)
2-41
After Starting APU - Copilot/Gunner .
8-11
Add a New NF Zone
3-108
After Starting APU - Pilot
8-8
3A-155
Air and Artillery Message Sets
3A-97
Add a Target or Threat
3-106
Air and TACFIRE mode message
Add a Waypoint, Hazard, Control Measure .
3-106
compatibility (table)
3A-98
Add a Waypoint, Hazard, Control Measure, or
Air Bleed Valve
2-62
Target/Threat
3A-153
Air Data System (ADS)
3-71
ADD Button
3-90
3A-106
3-92
4-80
3A-132.3
Air Induction System
2-33
3A-133
AIR MSN (REQUEST) LIST Page (figure) .
3A-93
Add Existing Points Current Route .
3A-154
AIR MSN TYPE Page
3A-93
Add Existing Points Current Route .
3-107
AIR MSN TYPE Page (figure)
3A-93
ADDRESS OPTIONS Buttons
3-66.54
AIR MSNS Page (INDEX Page L1) .
3A-93
3A-69
AIR REQ, ARTY REQ, MOVEMENT and
ADF Bearing Pointer
3-82
REPORTS Menu Structure (figure) .
3-53
3A-123
3-66.70
ADF Button
3-73
Air Request Pages
3-52
3-83
3-66.69
3A-108
3A-124
Air to Air TACFIRE Parameter Premission
Planning Considerations
3A-90
ADF Page
3-81
Aircraft BDA REPORT
3A-100.17
ADF Page (figure)
3-81
Aircraft BDA REPORT Message
3A-100.16
ADF Preset Buttons
3-82
Aircraft CAS REPORT
3A-100.17
3A-124
Aircraft General, Illustrations
1-2
ADF Tone Button
3-81
Aircraft Heading Status Window
3-74
ADF UTIL Page (figure)
3-82
3A-110
ADF Utility (UTIL) Page
3-82
Aircraft MAYDAY Message
3A-100.17
Adverse Environmental Conditions .
8-17
Aircraft Message PP REQUEST/REPLY .
3A-100.14
Advisory Column Listing Area
2-124
Aircraft Message SIT/STAT REPORT .
3A-100.14
Advisory Condition Indications
9-31
Aircraft Message SPOT REPORT .
3A-100.15
Advisory Condition Indications (table) .
9-31
Aircraft MOVEMENT Message
3A-100.14
Advisory Messages
2-148
Aircraft MSGS/FTX (FREE TEXT, BDA,
Advisory Messages (table)
2-148
CAS, CHECK FIRE, CANCKF)
3A-100.17
Advisory Operations
2-140.1
Aircraft Negative SPOT REPORT .
3A-100.16
Aerial Rocket Subsystem Description .
4-95
Aircraft Performance, Effects of Icing .
8-21
Aerial Rocket Subsystem
Aircraft Survivability Equipment
Operating Procedures
4-103
(ASE) Page
4-114
Aerial Rocket Subsystem Operation .
4-96
Aircraft Variation, Engine
7-7
Aerial Rocket System Controls (figure) .
4-89
Aircraft Variation, C Engine
7A-8
Use or disclosure of this information is subject to the restriction(s) on the title page of this document.
Index 2
Change 4
TM 1-1520-251-10
Subject
Page No.
Subject
Page No.
Airfire (AF) Page
3A-151
AMC TARGET (Air Request -
At My Command Target)
3A-100.3
Airfire (AF) Page (figure)
3A-151
Ammunition
6-12
Airfire Mission Status Window
3A-111
Ammunition Handling System
4-93
Airfire Mission Symbol
3A-114
Ammunition Loading for M788 or
Airfire Observer Symbol
3A-114
M789 30mm Rounds
Airspeed (Cruise), Engine
7-19
(Aluminum Cartridges) (table)
6-15
Airspeed (Cruise), C Engine
7A-21
Amplified Checklist
8-2
AN/ALQ - 136(V)5 Radar Jammer
Airspeed Limits for Autorotation
5-9
Countermeasures Set (RJAM)
4-111
Airspeed Limits With One Engine
AN/ALQ - 136(V)5 Radar Jammer
Inoperative
5-9
Countermeasures Set (RJAM),
Airspeed Operating Limits
5-9
System Description
4-111
Airspeed Operating Limits Chart
5-9
AN/ALQ - 136(V5) Radar Jammer
Countermeasures Set (RJAM),
Airspeed Operating Limits Chart (Figure) .
5-10
System Operation
4-112
5-11
AN/ALQ - 144A(V)3 Infrared Jammer
Airspeed Sensors Anti - Ice
2-76
Countermeasures Set (IRJAM)
4-112
AKI Button
4-84
AN/ALQ - 144A(V)3 Infrared Jammer
AKI Button on WPN Page (figure) .
4-100
Countermeasures Set (IRJAM),
ALE HOLD/SCAN Button
3-66.51
System Description
4-112
3A-66
AN/ALQ - 144A(V)3 Infrared Jammer
Countermeasures Set (IRJAM),
ALE Status Window
3-66.51
System Operation
4-112
3A-67
AN/APN - 209, Radar Altimeter
3-71
ALIGN MOVE Button
3-78
3A-106
3A-117
AN/APR - 39A(V)4 Radar Detecting Set .
4-109
ALIGN Stationary (STAT) Button
3-78
AN/APR - 39A(V)4 Radar Signal Detecting
3A-117
Set, System Description
4-109
ALL Button
3-24
AN/APR - 39A(V)4 Radar Signal Detecting Set,
3-25
System Operation
4-109
3-66.35
An/APR - 48A Radar Frequency
3-66.54
Interferometer (RFI), System Description .
4-110
3A-49
3A-69
AN/APR - 48A Radar Frequency Interferometer
(RFI), System Operation
4-111
ALL IDM/SOI Button
3-23
AN/ARC - 164 Have Quick (HQ) Procedures .
3-41
Allowable Loading
6-18
3-66.57
Alphanumeric Display
4-28
3A-73
Alphanumeric Display (figure)
4-28
AN/ARC - 164(V) UHF - AM Radio Set .
3-7
3-66.2
ALT CNTL Button
3A-122.3
3A-7
Alternate Use (Climb-Descent),
AN/ARC - 186(V) VHF - AM Radio Set .
3-7
Engine
7-73
3-66.2
Alternate Use (Climb-Descent),
3A-7
701C Engine
7A-75
AN/ARC - 201D SINCGARS Procedures .
3-43
Alternator Malfunction, Engine
9-11
AN/ARC - 201D VHF - FM (SINCGARS) .
3-9
AMC ORDNANCE (Air Request -
3-66.3
At My Command Ordnance)
3A-100.1
3A-8
Use or disclosure of this information is subject to the restriction(s) on the title page of this document.
Change 4
Index 3
TM 1-1520-251-10
Subject
Page No.
Subject
Page No.
AN/ARC - 220 HF Radio Set
3-66.3
Anti - Ice System, General
2-76
3A-8
Anti - Icing System, Engine and Engine Inlet .
2-33
AN/ARN - 149 Automatic Direction
Appendix A, References,
Finder (ADF)
3-71
Related Publications
1-1
3A-106
Appendix B, Abbreviations and Terms .
1-1
AN/ASN - 157 Doppler Radar Velocity
Appendix C, Two letter Identifiers
Sensor (DRVS)
3-71
and Symbols,
1-1
3A-105
Appendix D, Tactical Situation Display
AN/AVR - 2 Laser Signal Detecting Set .
4-109
(TSD) Preplanned, Radar Frequency
AN/AVR - 2 Laser Signal Detecting Set
Interferometer (RFI) Deected,
(LDS), System Description
4-109
and Fire Control Radar (FCR)
Merged Symbols
1-1
AN/AVR - 2A Laser Detecting Set (LDS),
System Operation
4-110
Approaching Operating Aircraft
2-6
AND Enhancement Display Status Field .
4-31
Approved Fuels (table)
2-113
AND Enhancement Display Status Field
Approved Oils (table)
2-114
(table)
4-31
APU Advisories
2-95
AND LRFD and LST Code Status Field .
4-31
APU Compartment Fire
9-15
AND LRFD and LST Status Field Messages
APU Control Switch
2-95
(table)
4-31
APU Electronic Control Unit (ECU) .
2-95
AND Messages
4-28
APU Engine Start
2-36
AND Missile Inventory and Status Field
APU Fuel Subsystem
2-46
(Missile Fault)
4-32
APU Location (figure)
2-95
AND Missile Inventory and Status Field
APU Operating Limitations
5-8
(MISSILE STATUS) (table)
4-32
APX - 100 Transponder
3-66.4
AND Missile Inventory and Status Field
3A-9
(Missile Status) (table)
4-32
APX - 118 CODE MODE 2 Entry
3-38
AND Missile Inventory and Status Field
3-66.40
(Missile Type) (table)
4-32
APX - 118 Transponder
3-10
AND Missile Inventory and Status Fields .
4-32
3-66.5
AND Sight Status Field
4-28
3A-10
AND Sight Status Field Messages (table) .
4-28
ARC - 201D FM Procedures
3-66.58
3A-74
AND Tracker Status Field
4-31
Area Button
3-95
AND Tracker Status Field Messages (table) .
4-31
3A-136
AND Weapon Status Field
4-29
Area Icon
3-76
AND Weapon Status Field Messages
3A-113
(WAS = MSL) (table)
4-29
Area Page
3-97
ANTENNA Button
3A-54
3A-138
3A-55
Area Page (figure)
3-98
Antenna Button
3-39
3A-138
3-66.40
Area Weapon System (AWS) Description .
4-93
ANTENNA TUNE Button
3-66.52
AREAS Button
3-24
3A-67
3-66.35
Anti - Collision Lights
2-97
3A-49
Anti - Ice Cautions and Advisories
8-20
ARM Power Control
4-80
Anti - Ice System Controls
2-76
ARM/SAFE Button
4-81
Use or disclosure of this information is subject to the restriction(s) on the title page of this document.
Index 4
Change 4
TM 1-1520-251-10
Subject
Page No.
Subject
Page No.
ARM/SAFE Status Window
4-90
ASE UTIL Page
4-117
ARM/SAFE Status Window (figure) .
4-90
ASE UTIL Page (figure)
4-117
Armament Panel
4-81
Assembly, Main Rotor,
2-74
ARMAMENT Panel (figure)
4-81
Assembly, Tail Rotor
2-74
Armament Postflight and Safing
Assign (ASN) Button
3-101
Procedures
4-107
3A-142
Armament System Architecture
4-80
Assign (ASN) Button Selected (figure) .
3-101
3A-142
Armament Systems (figure),
4-79
Asterik (*) Page
2-20
Armament Systems, General,
4-79
ATHS (Index) Page
3-49
Armament Systems, Introduction
4-79
3-66.66
Army Aviation Safety Program
1-1
ATHS Button
3-15
Articulation
4-95
ATHS Messages (table)
3-66
Artillery (ARTY) Page
3A-148
3-66.82
Artillery Intelligence Message (ATI GRID) .
3A-100.11
ATHS Page Button
3-66.30
3A-45
ARTILLERY REQUEST (FIRE REQUEST
Grid/FR Grid)
3A-100.5
ATHS Page TACFIRE Index Format (figure) .
3A-90
ARTILLERY REQUEST
ATHS TACFIRE Operations
3A-90
(FR Grid with MAN Shift)
3A-100.9
ATHS Target Icon
3-76
ARTILLERY REQUEST (Time On Target) .
3A-100.6
3A-113
Artillery Request Pages
3-57
ATHS Top Level Menu Selections (figure) .
3-51
3-66.74
3-66.68
Artillery TACFIRE Parameter Premission
ATHS - TACFIRE Improved Data Modem .
3-48
Planning Considerations
3A-88
3-66.65
3A-85
ARTY MSN LIST Page (figure)
3A-94
ATHS - TACFIRE Index (figure)
3-50
ARTY MSN TYPE Page
3A-94
3-66.66
ARTY MSN TYPE Page (figure)
3A-94
ATHS - TACFIRE Initialization
3-49
ARTY MSNS Page (INDEX Page L2) .
3A-94
3-66.66
ARTY Page with CFF (figure)
3A-149
3A-86
ASE Autopage button
3-78
ATHS - TACFIRE Mission Capabilities .
3-48
3A-117
3-66.65
3A-85
ASE Button
3-72
ATHS-TACFIRE RCVD MSGS Page (figure) .
3A-91
4-115
ATM Azimuth Scan Centerline Control .
4-45
ASE Equipment Locations (figure) .
4-108
ATM Azimuth Scan Centerline Control
ASE Footprint
4-116
(figure)
4-46
ASE Footprint Symbol
3-76
ATM Centerline Symbol
4-55
3A-113
3A-114
ATM Elevation Control
4-45
3A-115
ATM Elevation Setting (figure)
4-45
ASE Operational Check
4-118
ATM Scan Symbols (figure)
4-45
ASE Page (figure)
4-114
ATM Symbology
4-46
ASE Symbology
4-116
ATM Symbology (figure)
4-46
ASE Symbology (figure)
4-116
ATM Target Processing/Prioritization .
4-44
ASE UTIL Button
4-115
Attitude Hold
2-57
Use or disclosure of this information is subject to the restriction(s) on the title page of this document.
Change 4
Index 5
TM 1-1520-251-10
Subject
Page No.
Subject
Page No.
AUTH CHALLEGE Button
3-26
AUX Control IFF
3-12
3-66.37
3-66.10
3A-28
3A-15
AUTH Page - AUTH CHALLENGE (figure) .
3A-28.1
Auxiliary Fuel Tank Selection, External,
Fuel Page
2-49
AUTH Page - AUTH REPLY (figure) .
3A-28.1
Auxiliary Power Unit Operating Limits .
5-8
AUTH Page - XMSN AUTH INITIATE
(figure)
3A-28.1
Auxiliary Power Unit Servicing
2-117
Available Acquisition Sources
4-61
AUTH REPLY Button
3-26
3-66.37
Aviation Life Support Equipment (ALSE) .
8-1
3A-28.1
Aviation Safety Program, Army
1-1
AUTO CALL ADDRESS Buttons
3-66.54
Avionics Equipment Configuration .
3-1
3A-70
3A-1
AUTO SA Button
3A-26
Avionics Power Supply
3-1
3A-1
AUTO SA DISTANCE Button
3A-25
AWS Operating Procedures
4-102
AUTO SA TIME Button
3A-25
AWS System Operation
4-94
Auto/Manual Failure, Stabilator
9-20
Azimuth Adjust Knob
4-33
Automatic (AUTO) Button
3-102
3A-143
B
Automatic Contrast Mode (ACM)
4-2
Automatic Direction Finder (ADF),
Back - up Control System (BUCS)
2-59
AN/ARN - 149
3-71
Balance Definitions
6-3
3A-106
Basic FARM Data (figure)
3-99
Automatic Fuel Leveling Conditions (table) .
2-47
3A-140
2-48
Battery Charger
2-91
Automatic Fuel Transfer (figure)
2-47
Battery Controls and Indicators (figure) .
2-92
Automatic Loading HQ Data
3-41
Battery Power Control
2-91
3-66.57
Battery Power Distribution (figure) .
2-84.4
3A-73
2-84.5
Automatic Loading of IDM NET Data .
3-45
Battery Power Indications
2-91
3A-77
Battery, Aircraft
2-91
Automatic Loading of SINCGARS Data .
3-43
Battle Area Management (BAM) Page .
3A-141
3-66.59
3A-75
Battle Area Management (BAM)
Page Button
3A-110
Automatic Mode Failure, Stabilator .
9-20
Battle Area Management (BAM) Page,
Automatic Paging of MPD Formats .
2-20
Type NF (figure)
3A-142
AUTOPAGE ACQ Button
4-115
Battle Damage Assessment Report
AUTOPAGE OFF Button
4-115
(BDA) Button
3-105
AUTOPAGE SRH Button
4-115
3A-146
BCST Button
3-19
AUTOPAGE TRK Button
4-115
Before Exterior Check
8-2
Autorotate, Definition
9-2
Before Landing Check
8-14
Autorotative Glide Chart (figure)
9-5
Before Leaving the Helicopter
8-16
AUX Control
3-12
Before Starting APU - Copilot/Gunner .
8-11
3-66.10
3A-15
Before Starting APU - Pilot
8-8
Use or disclosure of this information is subject to the restriction(s) on the title page of this document.
Index 6
Change 4
TM 1-1520-251-10
Subject
Page No.
Subject
Page No.
Before Starting Engines - Pilot
8-9
CALL ADDRESS Page Button
3-66.51
3A-66
Before Takeoff Check
8-14
CALL SIGN Button
3-66.14
Before Taxi Check
8-12
3A-22
Bezel Button/Label Not Selectable .
2-22
Call Sign Status Window
3-15
BLK 2 Communications (COMM) Panel
Canopy and Windshield Cleaning
2-117
Controls
4-69
Canopy Anti - Ice
2-76
Bob - Up Mode Symbology
4-13
Canopy Defog
2-77
Bold Character Presentation (figure) .
2-23
Canopy Jettison
2-6
Bold Font Characters
2-23
Canopy Jettison Handle (figure)
2-27
Boost (BOOST) On/Off Button
2-48
Canopy Jettison System
2-27
BORESIGHT Button
4-4
CAQ Select Button
4-115
BORESIGHT ENABLE Switch
4-33
Cargo Loading
6-16
BORESIGHT Page
2-138
CARTRIDGES Button
4-118
4-6
Casualty Status Window
4-91
Boresight Position Synchronization
Caution Condition Indications
9-25
(BPS) Page
4-60
Caution Condition Indications (table) .
9-25
Both Engines Fail, Dual Engine Failure .
9-7
Caution Messages
2-143
Both Generators Fail
9-17
Caution Messages (table)
2-141
BPS Boresight Page Description
4-60
2-143
BPS Button
4-60
Caution Operations
2-140.1
BPS Page (figure)
4-60
Cautions and Advisories, Anti - Ice .
8-20
Briefing, Crew
8-1
Cautions, Warnings and Notes Defined .
1-1
BUCS Description
2-59
CBR Blower
2-30
BUCS Fail
9-19
CBR Blower, Survivability Equipment .
2-30
BUCS Flight - Transfer of Controls (table) .
2-61
Center (CTR) Button
3-72
BUCS ON
9-19
3A-108
BUCS Operation
2-59
Center AUX On/Off Button
2-50.1
BUCS Test - Pilot/CPG
8-9
Center of Gravity (CG) Status, Engine .
7-3
7A-3
BURST COUNT Button
4-117
Center of Gravity Limits (figure)
6-19
BURST INTERVAL Button
4-117
Center of Gravity Limits Chart
6-18
Center of Gravity Parameters
6-18
C
CG Management
6-4
C-SCOPE
4-34
CG, Loading Limits
5-9
C-Scope Presentation on Weapons
CHAFF (C) Button
4-113
Symbology (figure)
4-55
CHAFF Button
4-114
C-Scope Processing
4-55
Chaff Dispenser and Cartridges/Laser
C-Scope Symbols
4-16.1
Warning Sensors ASE Equipment (table) .
6-15
C/S Button
3-19
Chaff Dispenser Cartridges (table) .
6-15
CHAFF Dispenser, Kit, Operation
4-118
CAL DAY Button
3-66.41
3A-56
CHAFF Dispenser/Laser Warning Sensors .
6-12
Calendar Day Button
3-36
CHAFF MODE Button
4-115
Use or disclosure of this information is subject to the restriction(s) on the title page of this document.
Change 4
Index 7
TM 1-1520-251-10
Subject
Page No.
Subject
Page No.
CHAFF Status
4-90
CLEAR Button
3-17
3-25
CHAFF Status Window
4-115
3-66.36
4-116
3-66.42
CHAN Button
4-84
3-66.47
3A-50
CHAN Code Buttons
4-93
3A-57
CHAN Page (figure)
4-93
3A-62
Change in Frontal Area (Cruise), Engine .
7-19
CLEAR/ABORT Buttons
3-66.36
3A-51
Change in Frontal Area (Cruise),
C Engine
7A-21
Climb Descent, Description, Engine .
7-73
Climb Descent, Description, C Engine .
7A-75
CHANNEL Buttons
4-93
Climb Descent, Use of Chart, Engine .
7-73
Charger, Battery
2-91
Climb Descent, Use of Chart, C Engine .
7A-75
CHART (Ciy Graphics) MAP (figure) .
3A-122.1
Climb- Descent Chart, (figure)
7-74
Chart C - Basic Weight and Balance
Climb- Descent Chart, C (figure)
7A-76
Record, DD Form 365 - 3
6-3
Climb-Decent, Primary Use, Engine .
7-73
Chart Explanation (Hover), Engine .
7-17
Climb-Decent, Primary Use, C Engine .
7A-75
Chart Explanation (Hover), C Engine .
7A-19
Climb-Descent, Alternate Use, Engine .
7-73
Climb-Descent, Alternate Use, C Engine .
7A-75
Chart Explanation, Engine
7-7
Climb-Descent, Conditions, Engine .
7-73
Chart Explanation, C Engine
7A-7
Climb-Descent, Conditions, C Engine .
7A-75
CHART MAP (figure)
3A-122.1
CLOCK DATE Button
3-66.49
Check Overspeed Test/Generator
3A-64
Reset Panel (figure)
2-38
CLOCK FM DATE/TIME Button
3-30
2-93
3-66.44
Checklist, Amplified
8-2
3A-59
CLOCK FM TIME Button
3-30
Checklist/Emergency Procedures Load .
2-127
3-66.43
CHOP Control
2-37
3A-59
Circuit Breaker Panel 1
2-85
CLOCK GPS TIME Button
3-30
2-86
3-66.43
3-66.49
Circuit Breaker Panel 1 (figure)
2-85
3A-59
2-86
3A-64
Circuit Breaker Panel 2
2-87
CLOCK HF TIME Display Button
3-66.49
2-88
3A-64
Circuit Breaker Panel 2 (figure)
2-87
CLOCK TIME Button
3-66.49
2-88
3A-64
Cleaning Restrictions
2-14.1
Closed Circuit Pressure Refueling .
2-115
CNTL/DSPL Format (figure)
2-134
Cleaning, Canopy and Windshield .
2-117
Cockpit Fogging
8-18
Cleaning, TADS/PNVS Shroud Window .
2-117
CODE MODE 1 Button
3-66.39
Clear (CLR) Button
3-104
3A-53
3A-144
CODE MODE 3/A Button
3-66.40
CLEAR (TACFIRE) Button
3-66.28
3A-53
3A-40
3A-55
Use or disclosure of this information is subject to the restriction(s) on the title page of this document.
Index 8
Change 4
TM 1-1520-251-10
Subject
Page No.
Subject
Page No.
CODE MODE 4 Button
3-66.40
COM PRESET Status Window
3-16
3A-53
3-66.15
3A-55
3A-26.1
CODE Page (figure)
4-8
COM Subsystem Paging Tree (figure) .
3-14
3-66.11
CODE RANGE and KEYWORD
3A-17
STATUS Window
4-8.1
COM UTIL Page (figure)
3-39
Code Range and Keyword Status Window .
4-93
COMM Panel - RLWR Volume Control .
4-113
Cold Section Module
2-31
COMM RADIOS
2-134
COLD START Button
3-66.41
COMM RADIOS Page (figure)
2-134
3A-56
Command Failed
2-23
Cold Weather Operations
8-18
Command Failed Bezel Edge Triangle
Cold Weather Preflight
8-18
(figure)
2-23
Cold Weather Start Characteristics, .
8-19
Communication Interface Unit (CIU) .
2-120
Cold Weather, Control Exercise
8-19
Communication Subsystem Display
Format Overview
3-13
Cold Weather, Engine Oil System
3-66.11
Characteristics
8-19
3A-16
Cold Weather, Engine Warm - Up
8-19
Communication/Navigation Antennas
Cold Weather, Initial Oil Pressure
8-19
(figure)
3-5
3A-5
Cold Weather, Oil Filter Bypass
8-19
Communication/Navigation Equipment
Cold Weather, Tail Rotor
(table)
3-2
Teetering Bearings
8-19
3A-2
Collective Control
4-3
Communications (COMM) Panel Controls .
4-69
Collective Control Grip (figure)
4-3
Communications (COM) Page
3-14
Collective Control Grips (figure)
4-82
3-66.12
3A-19
Collective Control Subsystem
2-52
Communications (COMM) Panel
3-66.9
Collective Grip Flight Control Switches
3A-14
(figure)
2-52
Communications (COMM) Panel (figure) .
3-12
Collective, Control
4-82
3-66.9
COLOR Button
4-70
3A-15
COM Page (figure)
3-14
Communications Controls, Cyclic Grip .
3-13
3-66.12
Communications Data Load
2-129
3A-19
Communications Data Selections (figure) .
2-129
COM Page (Preset Selected) (figure) .
3-15
Communications Panel (COMM)
3-11
3-66.15
Communications Protocol
3-13
3A-26
Communications Protocol and Networks .
3-66.11
COM Page - PRESET and RADIO Selected .
3-66.17
3A-17
3A-28.2
Communications Subsystem (figure) .
3-6
COM Page - PRESET Selected
3-66.14
3-66.1
3A-26
3A-6
COM Page - Preset Selected
3-15
Communications Utility (UTIL) Page .
3-39
COM Page Preset and Radio FM1
Compartment Fire, APU
9-15
Selected (figure)
3-66.17
Compass Rose
3-82
3A-28.3
3A-123
Use or disclosure of this information is subject to the restriction(s) on the title page of this document.
Change 4
Index 9
TM 1-1520-251-10
Subject
Page No.
Subject
Page No.
COMPLY WILL/HAVE/CAN’T Buttons .
3A-45
Controls and Displays, Navigation
Subsystem
3-71
Compressor Stall, Engine
9-12
3A-106
COMSEC Operation
3-66.60
Controls, Displays, Instrument Panels,
3A-76
and Consoles
2-8
COMSEC Operation Procedure
3-45
Controls/Displays
2-134
Conditions (Climb-Descent), Engine .
7-73
Cooling, Crewstation Backup
2-80
Conditions (Climb-Descent), C Engine .
7A-75
Cooling, Engine
2-33
Conditions (Cruise), Engine
7-20
COORD Button
3-72
Conditions (Cruise), C Engine
7A-22
3A-107
Conditions (Drag), Engine
7-70
COORD Page (figure)
3-95
Conditions (Drag), C Engine
7A-72
3A-136
Conditions (Hover Ceiling), Engine .
7-15
COORD SHOW Page (ATK) (figure) .
3A-132.2
COORD SHOW Page (NAV) (figure) .
3A-132.1
Conditions (Hover Ceiling), C Engine .
7A-16
Coordinate (COORD) Page
3-95
Conditions (Hover), Engine
7-17
3A-136
Conditions (Hover), C Engine
7A-19
Copilot/Gunner
- Before Starting APU .
8-11
Conditions (Max Torque), Engine
7-10
Copilot/Gunner Duties and Responsibilities .
8-1
Conditions (Max Torque), C Engine .
7A-10
Copilot/Gunner, After Starting APU .
8-11
Conditions For Use
4-60
Copilot/Gunner, Engine Shutdown (APU) .
8-16
Configuration, Avionics Equipment .
3-1
Copilot/Gunner, Interior Check
8-11
Configuration, Wing Stores
5-12
Count - Down Timers
2-41
Configurations, Engine
7-8
CPG Boresight Page
4-7
Configurations, C Engine
7A-8
CPG BORESIGHT Page (figure)
4-7
CONTOUR LINES (figure)
3A-121
CPG INTR LT Panel (figure)
2-98
Control Exercise, Cold Weather
8-19
CPG MPD Cursor Symbol
Control Measure (CTRLM) Icon
3-75
(Single DP Operation) (figure)
2-24
3A-112.1
CPG Station Diagram (figure)
2-10.1
Control Measure (CTRLM) Page
3-96
2-10.2
3A-137
CPG VCR Page - Play Mode (figure) .
4-72.2
Control Measures (CTRLM) Buttons .
3-95
CPG WPN UTIL Page
4-6
3A-136
CPG WPN UTIL Page (figure)
4-6
CONTROL MEASURES Button
3-24
Create Cold Start TOD
3-66.58
3-66.35
3A-74
3A-49
Create Emergency TOD
3-43
Control Measures Page (figure)
3-97
Create GPS TOD
3-66.58
3A-137
3A-74
Control Switches
2-54
Create Priority Fire Zones
3-107
Control System, Engine
2-37
3A-154
Control System, Flight
2-51
Create TOD
3-43
Control, Collective
4-82
Crew Briefing
8-1
Controls and Displays
4-69
Crew Duties and Responsibilities
8-1
Controls and Displays, Drive Train .
2-72
Crew Weight (table)
6-11
Controls and Displays, Hydraulic System .
2-66
Crewmember Seats (figure)
2-8
Use or disclosure of this information is subject to the restriction(s) on the title page of this document.
Index 10
Change 4
TM 1-1520-251-10
Subject
Page No.
Subject
Page No.
Crewmember Seats, General
2-8
Cruise, ENG Inlet Anti-Ice On,
701C Engine
7A-22
Crewstation Backup Cooling
2-80
Cruise, Fuel Flow, 701 Engine
7-19
Crewstations, General
2-8
Cruise, Fuel Flow, 701C Engine
7A-21
Cruise Chart Example, 701 (figure) .
7-21
Cruise, Maximum Endurance and
Cruise Chart Example, 701C (figure) .
7A-23
Rate of Climb, 701 Engine
7-19
Cruise Chart, 10,000 Feet 701 (figure) .
7-51
Cruise, Maximum Endurance and
Cruise Chart, 10,000 Feet 701C (figure) .
7A-53
Rate of Climb, 701C Engine
7A-21
Cruise Chart, 12,000 Feet 701 (figure) .
7-56
Cruise, Maximum Range, 701 Engine .
7-19
Cruise Chart, 12,000 Feet 701C (figure) .
7A-58
Cruise, Maximum Range, 701C Engine .
7A-21
Cruise Chart, 14,000 Feet 701 (figure) .
7-61
Cruise, Torque, 701 Engine
7-19
Cruise Chart, 14,000 Feet 701C (figure) .
7A-63
Cruise, Torque, 701C Engine
7A-21
Cruise Chart, 16,000 Feet 701 (figure) .
7-66
Cruise, Use of Charts, 701 Engine .
7-19
Cruise, Use of Charts, 701C Engine .
7A-21
Cruise Chart, 16,000 Feet 701C (figure) .
7A-68
CRYPTO CNV Button
3-66.42
Cruise Chart, 2,000 Feet 701 (figure) .
7-29
3A-58
Cruise Chart, 2,000 Feet 701C (figure) .
7A-31
CRYPTO MODE Button
3-66.42
Cruise Chart, 4,000 Feet 701 (figure) .
7-35
3A-58
Cruise Chart, 4,000 Feet 701C (figure) .
7A-37
CUE FREQ Button
3-66.43
Cruise Chart, 6,000 Feet 701 (figure) .
7-41
3A-59
Cruise Chart, 6,000 Feet 701C (figure) .
7A-43
CUE FREQUENCY Button
3-30
CUE TUNE Button
3-30
Cruise Chart, 8,000 Feet 701 (figure) .
7-46
3-66.43
Cruise Chart, 8,000 Feet 701C (figure) .
7A-48
3A-59
Cruise Chart, Sea Level 701 (figure) .
7-23
Cued Search
4-33
Cruise Chart, Sea Level 701C (figure) .
7A-25
4-58
Cruise Chart, Sea Level, +10 C
CUED Search Switch
4-4
Example 701 (figure)
7-22
CURRENT MISSION - Route Selections .
3-25
Cruise Chart, Sea Level, +10 C
3-66.35
Example 701C (figure)
7A-24
3A-49
Cruise Mode Symbology
4-14
CURRENT MISSION Button
3-23
3-66.33
Cruise Status Window, 701 Engine, .
7-2
3A-48
Cruise Status Window, 701C Engine .
7A-2
Current Mission Data
2-128
Cruise, Airspeed, 701 Engine
7-19
CURRENT MISSION Page
3-24
Cruise, Airspeed, 701C Engine
7A-21
3-66.34
Cruise, Change in Frontal Area,
3A-48
701 Engine
7-19
CURRENT MISSION Page (figure) .
3-24
Cruise, Change in Frontal Area,
3-66.34
701C Engine
7A-21
3A-48
Current Mission Page
Cruise, Conditions, 701 Engine
7-20
(ROUTE Button Selected) (figure) .
3-66.35
Cruise, Conditions, 701C Engine
7A-22
3A-49
Cruise, Description, 701 Engine
7-19
Cursor Acquisition (ACQ) Button
3-73
Cruise, Description, 701C Engine
7A-21
3A-108
Cruise, ENG Inlet Anti-Ice On,
Cyclic Control Grip
4-2
701 Engine
7-20
4-81
Use or disclosure of this information is subject to the restriction(s) on the title page of this document.
Change 4
Index 11
TM 1-1520-251-10
Subject
Page No.
Subject
Page No.
Cyclic Control Grip (figure)
4-3
DE, TGT Vertical Tapes (figure)
5-4
4-82
DE, 701C TGT Vertical Tapes (figure) .
5-5
Cyclic Control Subsystem
2-52
Deck Fire
9-16
Cyclic Grip Chaff Dispense Switch (figure) .
4-114
Declutter Button
4-70
Cyclic Grip Communications Controls .
3-13
Dedicated Controls, Passive Defense .
4-113
3-66.11
Dedicated Warning Lights, MPD
3A-16
Warnings and Voice Messages (table) .
9-25
Cyclic Grip Flight Control Switches (figure) .
2-52
DEFAULT Button
3-66.54
3A-69
Default Range
4-65
D
Definition of Emergency Terms
9-1
Damper Assembly
2-74
Definition, Autorotate
9-2
Danger Areas (figure)
2-7
Definition, Land as Soon as Possible .
9-1
Danger Areas, Aircraft
2-6
Definition, Land as Soon as Practicable .
9-2
Data Entry Pushbutton Operation (figure) .
2-17
Definition, Land Without Delay
9-1
Data Field Presentation of Invalid or
Definition, Symbols
8-2
Missing Data
2-23
Degraded FCR Azimuth Servo
4-67
Data Transfer Management
2-121
Degraded FCR Elevation Servo
4-67
Data Transfer Receptacle (figure)
2-120
Degraded FCR Modes
4-66
Data Transfer Unit
2-120
DEL Button
3-22
Data Transfer Unit (DTU)
2-120
3-66.30
3-66.31
DATA TYPE Active (ACT) Button
2-132
3A-45
DATA TYPE Exceedences (EXC) Button .
2-132
3A-46
DATA TYPE Historical (HST) Button .
2-132
Delete (DEL) Button
3-93
DATA TYPE Line Replaceable Unit (LRU)
3-98
Button
2-132
3-103
3A-134
Data, DTU
2-128
3A-139
Data, Performance, 701 Engine
7-1
3A-144
Data, Performance, 701C Engine
7A-1
Description (Climb Descent), 701 Engine .
7-73
Datum Button
3-78
Description (Climb Descent), 701C Engine .
7A-75
3A-117
Description (CRUISE), 701 Engine .
7-19
Datum Display Button
3-78
Description (CRUISE), 701C Engine .
7A-21
Datum Names and Codes (table)
3-69
Description (Drag), 701 Engine
7-70
3A-104
Description (Drag), 701C Engine
7A-72
Datums, Map
3-69
Description (Hover Ceiling), 701 Engine .
7-15
3A-104
Description (Hover Ceiling), 701C Engine .
7A-16
DAY Button
3-66.12
Description (Hover), 701 Engine
7-17
3-66.37
3A-19
Description (Hover), 701C Engine .
7A-19
DC Bus Interface with Battery
Description (Max Torque), 701 Engine .
7-10
Electrical System
2-91
Description (Max Torque), 701C Engine .
7A-10
DC Electrical System
2-91
Description, Avionics
3-1
3A-1
DC Power Distribution (figure)
2-84.2
2-84.3
Description, Operating Instructions .
1-1
Use or disclosure of this information is subject to the restriction(s) on the title page of this document.
Index 12
Change 4
TM 1-1520-251-10
Subject
Page No.
Subject
Page No.
Desert and Hot Weather Operations .
8-21
Download (Transfer) Current Com Data From
Source Aircraft To Target Destination DTC .
3A-100.18
Destruction of Army Material to Prevent
Enemy Use
1-1
DP Auto Load
2-127
Detecting Set, AN/AVR - 2 Laser Signal .
4-109
DP Select
2-138
Digital Electronic Control
2-34
DP/DTU Point to Point Fibre Channel
Data Bus
2-12
DIGITAL ID FIRE SUPPORT Button .
3A-23
DIGITAL ID INTERNET Button
3A-23
Drag Chart and Authorized Armament
Configurations (figure)
7-71
DIGITAL ID LONGBOW/TACFIRE Button .
3A-22
Drag Chart and Authorized Armament
Digital Remote HELLFIRE Launcher (L)
Configurations, 701C (figure)
7A-73
and Designator (D) Mission Execution .
3-55
3-66.72
Drag, Conditions, 701 Engine
7-70
Direct (DIR) Button
3-93
Drag, Conditions, 701C Engine
7A-72
3A-134
Drag, Description, 701 Engine
7-70
Direct - to - Line
3-75
Drag, Description, 701C Engine
7A-72
3A-112.1
Drag, Use Of Chart, 701 Engine
7-70
Directional Control Subsystem
2-52
Drag, Use Of Chart, 701C Engine .
7A-72
DISPLAY Buttons
4-71
Draw (DR) Button
3-102
Display Processor (DP)
2-120
3A-143
Display ZOOM Switch
4-34
Drive System, Main Rotor
2-71
Ditching (Power Off)
9-19
Drive System, Tail Rotor
2-73
Ditching (Power On)
9-19
Drive Train (figure)
2-71
DMS Autopage
2-138
Drive Train Controls and Displays
2-72
DMS Dedicated Panels
2-140.2
DTC Advisory Messages (figure)
2-125
DMS Hardware
2-120
DTC Upload Data (table)
2-121
DMS Page
2-123
DTU button (BLK 2)
2-136
DMS Page (figure) (BLK 1)
2-123
DTU Data for Autoloads
2-131
DMS Page (figure) (BLK 2)
2-123
DTU Page
2-124
DMS Page FCR Functional Loss Messages
DTU Page (figure) (BLK 1)
2-124
(table)
4-67
DTU Page (figure) (BLK 2)
2-124
DMS Page, DTU
2-123
DTU Upload Advisories & Operational
DMS System Date
2-138
Conditions
2-125
DMS System Time Entry
2-138
Dual DP Failure
9-22
DMS Time
2-138
Dual Engine Bleed Air
2-70
DMS UTIL Page (figure)
2-137
Dual Engine Failure - General
9-6
DMS Utility (UTIL) Page
2-137
Dual Engine Failure - Low Altitude/Low
DMS Utility Page Button
2-124
Airspeed and Cruise
9-11
Doppler Button
3-78
Dual SP Failure
9-22
3A-117
Dual TRU Failure (Transformer Rectifier 1
Doppler Data Status Window
3-78
[RECT 1 FAIL] and Transformer Rectifier 2
3A-117
[RECT 2 FAIL])
9-18
Doppler Radar Velocity Sensor (DRVS),
DVO Boresight Adjust Switch
4-33
AN/ASN - 157
3-71
3A-105
DVO CUE Update Procedure (ORT) .
4-78.3
Use or disclosure of this information is subject to the restriction(s) on the title page of this document.
Change 4
Index 13
TM 1-1520-251-10
Subject
Page No.
Subject
Page No.
E
EDIT UHF CNV Button
3-66.20
3A-31
ECS
2-139
EDIT UHF FREQ Button
3-66.20
ECS Controls and Displays
2-79
3A-31
ECS Exhaust Danger Areas
2-6
EDIT VHF FREQ Button
3-66.20
3A-31
ECS Failure
2-80
EDIT HQ NET Button
3-66.20
ECS Normal Operation
2-78
3A-31
EDIT Buttons
3-66.19
EDIT UHF MODE Button
3-66.20
3A-30
3A-31
EDIT CALL SIGN Button
3-66.19
Effects of Icing on Aircraft Performance .
8-21
3A-30
EGI In - Flight Misalignment
9-20
EDIT FM1/FM2 DATA SWAP Button .
3-66.21
EGI Operational Check - Pilot/CPG .
8-9
3A-31
EGI Operational Procedures
3-70
EDIT FM1/FM2 FREQ Button
3-66.21
3A-105
3A-31
EGI, Embedded Global Positioning System
EDIT FM1/FM2 HOPSET Button
3A-31
Inertial Navigation System
3-68
3A-103
EDIT FM1/FM2 MODE Button
3-66.20
3A-31
Egress, Emergency
9-4
EDIT HF ALE NET Button
3-66.21
Electrical Control Unit
2-34
3A-32
Electrical Fire In Flight
9-16
EDIT HF CRYPTO CNV Button
3-66.21
Electrical Load Center 1
2-89
3A-31
Electrical Load Center 2
2-90
EDIT HF CRYPTO MODE Button .
3-66.21
Electrical Load Center No. 1 C/B’s (figure) .
2-89
3A-31
Electrical Load Center No. 2 C/B’s (figure) .
2-90
EDIT HF ECCM NET Button
3-66.21
Electrical Power Distribution (figure) .
2-83
3A-32
Electrical Power Management System
EDIT HF PRESET CHAN Button
3-66.21
(EPMS)
2-81
3A-32
Electrical Power Management System
EDIT HF RECV EMISSION Button .
3-66.21
(figure)
2-82
3A-32
Electrical System
2-95
EDIT HF RECV FREQ Button
3-66.21
Electrical System Components (figure) .
2-81
3A-32
Electrical System Malfunctions
9-17
EDIT HF XMIT EMISSION Button .
3-66.21
Electrical System, AC
2-91
3A-32
Electrical System, DC
2-91
EDIT HF XMIT FREQ Button
3-66.21
Electrical System, Engine
2-34
3A-32
ELEV Button
4-49
EDIT Page
3-18
ELEV COLOR BAND MAP (figure) .
3A-120
EDIT Page (figure)
3-18
ELEV COLOR BANDS (figure)
3A-120
EDIT Page (Preset without IDM Net) (figure) .
3-19
Elevation Adjust Knob
4-33
EDIT Page Button
3-17
Embedded Global Positioning
EDIT PRIMARY RADIO Button
3-66.19
Inertial Navigation System (EGI)
4-80
3A-30
Embedded Global Positioning System
EDIT UNIT ID Button
3-66.19
Inertial Navigation System (EGI)
3-68
3A-30
3A-103
Use or disclosure of this information is subject to the restriction(s) on the title page of this document.
Index 14
Change 4
TM 1-1520-251-10
Subject
Page No.
Subject
Page No.
EMERG HYD Pushbutton (figure) .
2-67
ENGAGE Status
3A-153
Emergency 500/2182 Buttons
3-82
Engine 1 and Engine 2 Buttons
7-5
Emergency Egress
9-4
Engine 1 or 2 Overspeed - Np Failed High .
9-11
Emergency Engine Shutdown
9-2
Engine Alternator - 701
2-35
Emergency Equipment
2-27
Engine Alternator - 701C
2-35
Emergency Equipment and
Engine Alternator Malfunction
9-11
Emergency Exits (figure)
9-3
Engine and APU Fire Detection/Extinguishing
System
2-28
Emergency Exit and Entrance
9-2
Engine and APU Fire Extinguishing Bottles .
2-28
Emergency Hydraulics
2-66
Engine and Engine Inlet Anti - Icing System .
2-33
Emergency Landing in Wooded Areas
(Power Off)
9-19
Engine Bleed Air Fail
2-70
Emergency Locator Transmitter (ELT) .
2-30
Engine Bleed Air Overtemperature .
2-70
Emergency Locator Transmitter
Engine Bleed Air Start
2-37
Check Procedure
3-66.58
Engine Chip Detector
2-36
3A-74
Engine Compressor Stall
9-12
Emergency Panel
3-12
Engine Control System
2-37
3-66.10
Engine Cooling
2-33
3A-15
Engine Electrical System
2-34
Emergency Panel (figure)
3-13
Engine Emergency Oil System
2-36
3-66.10
3A-16
Engine Failure and Engine
Power Loss - General
9-4
Emergency Procedures, Helicopter Systems .
9-1
Engine Failure, Dual Engine - General .
9-6
Emergency Steps, Immediate Action .
9-1
Engine Failure, Single - Engine - General .
9-6
Emergency Stores Jettison (JETT) Switch .
2-28
Engine Fire - In Flight
9-15
Emergency Stores Jettison (JETT)
Switch (figure)
2-28
Engine Fire on Ground
9-16
Engine fuel Boost Pump
2-33
Emergency Terms, Definitions
9-1
Engine Fuel Control System
2-33
END OF MSN Status
3A-153
Engine Fuel Filter
2-33
Endurance Status Window
3-75
3A-111
Engine Gas Generator (NG) Limitations .
5-6
ENG Inlet Anti-Ice On (Cruise),
Engine Hydromechanical Unit
2-33
701 Engine
7-20
Engine Indication, MPD
2-38
ENG Inlet Anti-Ice On (Cruise),
Engine Inlet Anti - Ice System
2-76
701C Engine
7A-22
Engine Instrument Timers (figure) .
2-42
ENG Instruments Page
Engine Instruments Displays (table) .
2-39
Emergency Format (figure)
2-41
Engine Limits, 701 Engine
7-7
ENG Page Ground Format (figure) .
2-66
Engine Load Demand System
2-38
5-2
Engine Lubrication Oil Pressure (PSI)
ENG Page Ground Format, Hydraulic .
2-66
Limitations
5-3
ENG Page Instruments (figure)
2-39
Engine Malfunctions - Partial or Complete
ENG1 and ENG2 Buttons
7A-5
Power Loss or Power - Limiting
9-4
ENG1 Selected 701C Engine (figure) .
7A-5
Engine NGB Oil Status Indications .
2-72
ENG1 Selected Page 701 (figure) .
7-5
Engine Nose Gearboxes
2-71
ENG1 Selected, Engine TEST 701 (figure) .
7-6
Engine Oil Supply System
2-36
Use or disclosure of this information is subject to the restriction(s) on the title page of this document.
Change 4
Index 15
TM 1-1520-251-10
Subject
Page No.
Subject
Page No.
Engine Oil System Characteristics,
Engines, General Description
2-1
Cold Weather
8-19
Enhanced Up Front Display (EUFD) (figure) .
2-140.1
Engine Oil System Servicing
2-116.2
Enhanced Up - Front Display (EUFD) .
2-26
Engine Page Emergency Format
2-41
Environmental Conditions, Adverse .
8-17
Engine Page Ground Format
2-38
Environmental Control System (ECS) .
2-78
Engine Page In - Flight Format
2-40
Environmental Control System (ECS) (figure) .
2-78
Engine Page Timers (table)
2-42
Environmental Restrictions
5-12
Engine Power Lever Quadrant
2-37
Equipment, Emergency
2-27
Engine Power Limitations
5-4
Equipment, Mission
6-12
Engine Power Turbine Speed (Np)
ERF CLEAR Button
3-32
Limitations
5-5
ERF Clear Button
3-33
Engine Restart During Flight
9-6
ERF Function
3-33
Engine Shutdown (APU) - Copilot/Gunner .
8-16
ERF Function Button
3-31
Engine Shutdown (APU) - Pilot
8-15
ERF Hopset Buttons
3-31
Engine Shutdown (EXT PWR) - Pilot/CPG .
8-16
3-33
Engine Starter Limitations
5-4
ERF LOCKOUT Buttons
3-31
ERF Lockout Buttons
3-33
Engine Starting System
2-36
ERF MODE Button
3-66.46
Engine SYS Page
2-53
3A-62
Engine Temperature (TGT) Limitations .
5-4
ERF Mode Button
3-31
Engine TEST Button
7A-6
3-33
Engine TEST Button
7-6
ERF Page - FH/M Mode, ERF SEND HOPSET
Engine TGT Limiter Function 701
2-34
Displayed (figure)
3-66.46
Engine TGT Limiter Function 701C .
2-35
3A-61
Engine Warm - Up, Cold Weather
8-19
ERF Page - HOPSET Edit (figure) .
3-66.48
3A-63
Engine, 701 , Performance Data
7-1
ERF Page - SEND HOPSET (figure) .
3-66.47
Engine, 701, Performance Data - General .
7-7
3A-63
Engine, 701, Performance Discrepancies .
7-8
ERF Page - SEND LOCKOUT (figure) .
3-66.48
Engine, 701, Performance Page
7-1
3A-63
7-4
ERF Page Button
3-66.44
7A-4
3A-59
Engine, 701, Specific Conditions
7-7
ERF Receive
3-66.60
Engine, 701, Temperature Conversion .
7-8
3A-76
Engine, 701, Use of Charts
7-7
ERF Receive Button
3-31
3-32
Engine, 701C, Data Performance
7A-1
ERF Receive Page
3-31
Engine, 701C, General Conditions, .
7A-8
ERF RECEIVE Page - Hopset Mode (figure) .
3-31
Engine, 701C, Performance Data - General .
7A-7
ERF RECEIVE Page - Hopset Received
Engine, 701C, Performance Discrepancies .
7A-8
(figure)
3-32
Engine, 701C, Specific Conditions .
7A-8
ERF RECEIVE Page - Lockout Mode
Engine, 701C, Temperature Conversion .
7A-8
(figure)
3-31
Engine, 701C, Use of Charts
7A-7
ERF RECEIVE Page - Lockout Received
Engine, Limits, 701C
7A-7
(figure)
3-32
Engines
2-31
ERF Receive Procedure
3-44
Use or disclosure of this information is subject to the restriction(s) on the title page of this document.
Index 16
Change 4
TM 1-1520-251-10
Subject
Page No.
Subject
Page No.
ERF RECEIVE Window
3-31
Exterior Check, Left Side Lower Center
3-66.44
Fuselage and Wing
8-5
3A-59
Exterior Check, Left Side Mast Area .
8-6
ERF Send
3-66.60
Exterior Check,
3A-76
Left Side Rear Center Fuselage
8-5
ERF Send Button
3-33
Exterior Check, Right Side Aft
Fuselage/Empennage
8-5
ERF SEND HOPSET Window
3-66.47
Exterior Check, Right Side Lower
ERF Send Page
3-32
Center Fuselage
8-3
ERF SEND Page - Hopset Edit
3-34
Exterior Check, Right Side Lower
ERF SEND Page - Hopset Edit (figure) .
3-34
Center Fuselage and Wing
8-4
ERF SEND Page - Hopset Mode (figure) .
3-32
Exterior Check, Right Side Mast Area .
8-4
ERF SEND Page - Hopset Send (figure) .
3-33
Exterior Check, Right Side Rear
Center Fuselage
8-5
ERF SEND Page - Lockout Mode (figure) .
3-33
Exterior Check, Right Side
ERF SEND Page - Lockout Send (figure) .
3-34
Underside Fuselage
8-3
ERF Send Procedure
3-44
Exterior Inspection Diagram (Figure) .
8-3
ERF STORE Button
3-32
Exterior Lighting Equipment
2-96
ETF Page, 701 Engine (figure)
7-5
Exterior Lighting Equipment (figure) .
2-96
7A-5
External Auxiliary Fuel Transfer Operation .
2-49
EUFD Controls
2-26
External Hydraulic, Pressurized Air
EUFD Rocker Switch Push Controls .
2-26
and Elctrical Requirements
2-107
Exceeding Operational Limits
5-1
External Pressurized Air Receptacle (figure) .
2-117
Exhaust Gases
2-6
External Pressurized Air Source
2-117
Exit and Entrance, Emergency
9-2
External Source for Engine Starting .
2-37
External Stores and Stations (figure) .
6-13
Expander (EXPND) Button
3-28
External Tanks
5-12
Expander (EXPND) Page
3-28
3-66.38
External/Ground Power
2-93
3A-28.2
External/Ground Power Controls
2-93
EXPEN FARM Data (figure)
3-100
External/Ground Power Indications .
2-93
3A-141
Extra Cargo
6-16
Explanation of Change Symbols
1-2
Eyewear Restrictions
2-14.1
EXPND Page (figure)
3-28
3-66.39
F
EXPND Page Button
3-66.39
Failure of Components, Flight Controls .
9-19
3A-28.2
Failure, Main Rotor Components
9-20
EXPNDR Page (APX - 118) Button .
3A-55
Failure, Mission Equipment
9-21
EXPNDR Page Button
3A-53
FALL BACK Button
3-66.13
Extended APU Ground Operations .
5-8
3A-20
Extended Range Kit
2-43
FALL BACK Enable Button
3-41
Exterior Check
8-3
Fall Back Page
3-40
Exterior Check, Left Side Aft
FALL BACK Page (figure)
3-40
Fuselage/Empennage
8-5
Fall Back Page Button
3-40
Exterior Check, Left Side Lower Center
FARM Page (figure)
3-99
Fuselage and Nose Area
8-7
3A-140
Use or disclosure of this information is subject to the restriction(s) on the title page of this document.
Change 4
Index 17
TM 1-1520-251-10
Subject
Page No.
Subject
Page No.
Fault Column Listing Area
2-124
FCR Page - RMAP Format (figure) .
4-39
Fault Display Area
2-132
FCR Page - TPM Format (figure)
4-47
FAULT Page
2-123
FCR Profile Lines and Obstacles
in C - Scope (figure)
4-17
Fault Page
2-131
FCR Scan
4-33
Fault Page (figure)
2-131
FCR Scan Size
4-34
FCR Air Targeting
4-51
4-53
FCR BIT ORIDE Button
4-49
FCR Scan Size Switch
4-4
FCR BIT Override
4-66
FCR Scan Switch
4-4
FCR Blanking Symbol (figure)
4-54
FCR STOW Button
4-49
FCR Button
2-136
FCR System Status
4-51
FCR Description
4-36.2
FCR Target Information
4-55
FCR Display Zoom
4-54
FCR Target Symbols
3-76
FCR Footprint Symbol
3-76
3A-113
3A-113
4-56
FCR Functional Loss Messages
4-67
FCR Target Symbols (figure)
4-56
FCR Functions
4-53
FCR Target Symbols in C - Scope
FCR Ground Targeting
4-51
(except TADS FLIR WFOV) (figure) .
4-17
FCR GTM/RMAP Scan
4-53
FCR TEMP ORIDE Button
4-49
FCR LETHAL Ranges Button
4-49
FCR Terrain Profiles
4-52
FCR Lethal Ranges Load
2-127
FCR Terrain Profiles (figure)
4-52
FCR Lethal Ranges Selections
4-50
FCR to Missile Target Assignment Status .
4-67
FCR Mode
4-34
FCR Useable Range
4-66
FCR Mode Switch
4-3
FCR UTIL Page
4-49
FCR Modes of Operation
4-51
FCR UTIL Page (figure)
4-49
FCR Operation
4-51
FFD MAP (figure)
3A-121
FCR Operational Check Procedure .
4-78.5
Fibre Channel Buses
2-12
FCR Overtemperature
4-66
Fibre Channel Data Bus Loop
2-12
FCR Page
4-37
File Not Found Cue (figure)
3A-119
FCR Page - FCR GTM - RMAP
FILL STATUS Window
3-66.56
Format Pages
4-40
3A-71
FCR Page - GTM Format
4-38
Fire Detection/Extinguish Panel
2-140.2
FCR Page - RMAP Format
4-39
Fire Detection/Extinguishing Panel .
2-28
FCR Page - TPM Format
4-47
Fire Detection/Extinguishing Panel (figure) .
2-28
FCR Page ATM Format
4-44
Fire Detection/Extinguishing System,
Engine and APU
2-28
FCR Page Controls
4-51
Fire Extinguisher, Portable
2-28
FCR Page Formats
4-37
Fire Mission (Copperhead Final Protective
FCR Page Formats on ORT HDD/HOD .
4-38
Fire [CPHD FPF])
3A-100.12
FCR Page Selection
4-37
Fire Mission (Copperhead Fire Request
FCR Page Symbology
4-54
Grid [CPHD FR] Grid)
3A-100.13
FCR Page - ATM Format (figure)
4-44
FIRE MISSION REQUEST
FCR Page - GTM Format (figure)
4-38
(FR with AUTO CALC Shift)
3A-100.7
Use or disclosure of this information is subject to the restriction(s) on the title page of this document.
Index 18
Change 4
TM 1-1520-251-10
Subject
Page No.
Subject
Page No.
FIRE MISSION REQUEST, END OF MISSION
FLT and FLT SET page
2-53
RECORD AS TARGET SEND
FLT Page (figure)
2-100
and SUBSEQUENT FR QUICK
3A-100.10
FLT Page Symbols (figure)
2-101
Fire on Ground, Engine
9-16
2-105
Fire on Ground, Fuselage
9-16
FLT Page, FLT SET Selected (figure) .
2-104
Fire Rockets - Cooperative Mode Procedure .
4-103
FLT Page, Stabilator Symbol (figure) .
2-53
Fire Rockets - Pilot or CPG
Fluid Level Indicator
2-62
Only Mode Procedure
4-103
2-65
Fire Support
3A-18
Flyaway Kit Bays (table)
6-17
FIRE SUPPORT PROTOCOL Button .
3A-34
FM ERF Page
3-66.44
3A-60
Fires, Emergency
9-15
FM ERF Page - Hopset Mode (figure) .
3-66.44
First Aid Kits
2-29
3A-60
Fixed Gun Aiming Reticle (figure)
4-16
FM ERF Page - Lockout Mode (figure) .
3-66.44
Fixed Pitch Malfunction, Tail Rotor .
9-14
3A-60
Flight Characteristics - General
8-17
FM ERF Page - SEND Lockout (figure) .
3-66.47
3A-62
Flight Characteristics, Engine Malfunctions -
Partial or Complete Power Loss or
FM ERF RECEIVE Page -
Power - Limiting
9-4
Hopset Received (figure)
3-66.45
3A-61
Flight Control Breakout Values (table) .
2-57
FM ERF RECEIVE Page -
Flight Control Malfunctions
9-19
Lockout Received (figure)
3-66.45
Flight Control System
2-51
3A-61
Flight Control System (figure)
2-51
FM MODE Button
3-66.43
Flight Envelope Chart (Figure)
5-13
3-66.46
3A-58
Flight in Icing Conditions
5-12
3A-62
Flight in Instrument Meteorological
FM Page
3-66.42
Conditions
5-12
3A-58
Flight Instruments, Standby, Pilot
2-105
FM Page - SC MODE (figure)
3-66.43
Flight into Turbulence
5-12
A-58
Flight Management Computer (FMC) .
3-71
FM Page Button
3-66.13
3A-106
3A-19
Flight Mode
4-95
FM RADIO Button
3-66.43
Flight Symbology Format
4-11
3A-58
Flight Symbology - Bobup Mode (figure) .
4-13
FM Radio Fill Selections
3-8
FM1 CNV Button
3-39
Flight Symbology - Cruise Mode (figure) .
4-14
FM1 FREQ Button
3-66.16
Flight Symbology - Hover Mode (figure) .
4-11
3A-27
Flight Symbology - Transition Mode (figure) .
4-13
FM1 IFM Buttons
3-40
Flight with Canopy Enclosure Open .
5-12
FM1 Mode Button
3-39
FLIR CUE Update Procedure (ORT) .
4-78.2
FM2 CNV Button
3-39
FLIR CUE Update Procedure (TEDAC) .
4-78.3
FM2 FREQ Button
3-66.16
FLIR Gain
4-2
3A-27
FLIR Level
4-2
FM2 Mode Button
3-39
4-26.1
FMT Page Button
3-66.41
FLIR Polarity Switch
4-34
3A-56
Use or disclosure of this information is subject to the restriction(s) on the title page of this document.
Change 4
Index 19
TM 1-1520-251-10
Subject
Page No.
Subject
Page No.
Folding Fin Aerial Rockets, 2.75 Inch .
4-96
Fuel Check
2-50.1
Force Trim Subsystem
2-52
Fuel Check Button
2-50.1
Force Trim, Use Of
5-12
Fuel Check Operation
2-50.1
Fuel Control System, Engine
2-33
Formation Lights
2-97
Fuel Crossfeed Subsystem
2-43
Forms and Records, Flight and Maintenance .
1-2
Fuel Flow (Cruise), 701 Engine
7-19
Forward/Backward in RTE Button .
3-80
Fuel Flow (Cruise), 701C Engine
7A-21
3A-122.3
Fuel Flow Rate Subsystem
2-46
Foundation Features (table)
3A-121
Fuel Management Page, MPD
2-46
Free Flowing Fuel, Cold Weather
8-18
Fuel Moments
6-6
FREE TEXT Button
3A-50
Fuel Page Crossfeed Selections
2-48
FREE TEXT Message Window
3-23
Fuel Page External Auxiliary Fuel Tank
Free Text Message Window
3-66.32
Selection
2-49
3A-47
Fuel Page Internal Auxiliary Fuel Tank
FREE TEXT Message Window (figure) .
3-23
Installed
2-50
FREE TEXT Page
3-25
Fuel Page, External Auxiliary Fuel Tanks
3-66.36
Installed (figure)
2-49
FREE TEXT Page (figure)
3-25
Fuel Page, Internal Auxiliary Fuel Tanks
FREE TEXT Page (Source HF) (figure) .
3-66.36
Installed (figure)
2-50
Fuel Page - CHECK Complete (figure) .
2-50.2
FREE TEXT Page (Source IDM -
FREE TEXT) (figure)
3A-50
Fuel Page - CHECK Format (figure) .
2-50.1
FREE TEXT Page (Source IDM) (figure) .
3-66.36
Fuel Page - Normal Configuration (figure) .
2-46
Free Text/PRESET Pages
3-63
Fuel Pressure Warning System
2-35
3-66.79
Fuel Quantity Indicating Tape
2-115
Freeze (FRZ) Button
3-80
Fuel Quantity Subsystem
2-43
Freeze Button
3-73
Fuel Subsystem, APU
2-46
3A-108
Fuel Sump Drains
2-115
FREQ Button
4-8
Fuel Supply System
2-43
FREQ Buttons
3-36
Fuel System
2-94
3-38
Fuel System (figure)
2-44
3-66.42
Fuel System Servicing
2-115
3A-57
Fuel Tanks, Internal
2-43
FREQ Page (figure)
4-8.1
Fuel Transfer Options (figure)
2-47
Frequency Hopping (FH) Capability .
3-7
Fuel Transfer Subsystem
2-43
3-9
Fuel Type Selection
2-48
3-66.2
3-66.3
Fuel Types
2-107
3A-7
Fuel Weight and Moment
6-6
3A-8
Fuel, Ammo, Rockets and Missiles
Frozen Water in Sumps,Cold Weather .
8-18
(FARM) Button
3-96
3-105
FS URN ID Button
3A-24
3A-137
FTEST/ETEST Page
2-139
3A-146
Fuel and Lubricant Specifications and
Fuel, Ammo, Rockets and Missiles
Capacities (table)
2-112
(FARM) Page
3-99
Fuel Boost Subsystem
2-43
3A-140
Use or disclosure of this information is subject to the restriction(s) on the title page of this document.
Index 20
Change 4
TM 1-1520-251-10
Subject
Page No.
Subject
Page No.
FUNCTION Button
3-66.46
GTM Manual Elevation Control Operations .
4-42
3A-62
GTM Scan Sectors (figure)
4-39
Fuselage Fire on Ground
9-16
GTM Target Processing/Prioritization .
4-55
Fuselage, Aircraft General
2-1
GTM/RMAP Symbology
4-43
FWD Button
3-66.31
GTM/RMAP Symbology (figure)
4-43
3A-46
Guard Lighted Button
3-66.10
3A-16
G
Guard Push Button
3-13
GUARD RECEIVER Button
3-66.41
G/S (Grayscale) Button
4-71
3A-56
General Aircraft and Systems Description
Guard UHF Button
3-15
and Operation
2-1
Guard VHF Button
3-15
General Arrangement, Aircraft
2-1
GUN Button
4-84
General Arrangement, Aircraft (figure) .
2-2
4-91
General ATHS - TACFIRE Button Control .
3A-91
GUN ROUNDS Button
4-91
General Conditions, 701 Engine
7-7
Gun System Controls (figure)
4-84
General Conditions, 701C Engine .
7A-8
General Description, Index
1-1
H
General Operating Limits and Restrictions .
5-1
H(opset) Buttons
3-66.46
General States of MPD Operation .
2-22
3A-62
General, Aircraft
1-1
HAD Acquisition Status Field Messages
General, Armament Systems
4-79
(table)
4-26
Generators
2-93
HAD Range and Range Source Messages
Generators Fail, Both
9-17
(table)
4-20
Global Positioning System (GPS)
3-69
HAD Sight Select Status Field Messages
3A-104
(table)
4-25
GND ORIDE Button
3-66.49
HAD Sight Status Field Messages (table) .
4-18
3A-64
HAD Weapon Inhibit Status Field Messages
GPS TIME Button
3-66.41
(table)
4-23
3A-56
Handgrips, ORT
4-82
Gravity Refueling
2-115
Hardware, DMS
2-120
GRAYSCALE Button
4-4
HDG Button
3-80
Grid Lines
3A-112.1
3-81
3A-122.3
Grip, Cyclic Control
4-81
3A-123
Ground Format Indications (figure) .
2-40
HDG Left/Right Arrow Buttons
3-79
Ground Operations During High Winds .
8-20
3A-122.3
Ground Override Button
4-81
Head Down Display Select Switch .
4-34
Ground Stow
4-95
Heading (HDG) Button
3-73
GROUND STOW Button
4-91
3A-109
Grouped Option Pushbutton Operation
Heading Select Indicator
3-82
(figure)
2-16
3A-123
GTM Antenna Elevation Control
Height Velocity Plots (Figure)
9-8
when MMA is Masked
4-42
Helicopter Air Data System
3-71
GTM Elevation Setting (figure)
4-41
3A-106
Use or disclosure of this information is subject to the restriction(s) on the title page of this document.
Change 4
Index 21
TM 1-1520-251-10
Subject
Page No.
Subject
Page No.
Helicopter Bays and Stations
6-1
HF ECCM NETS Page
3-66.52
3A-68
Helicopter CG Movement When Load Items
Are Expended (table)
6-5
HF FILL INFO Button
3-66.56
3A-71
Helicopter Class
6-1
HF MODE Button
3-66.49
Helicopter Systems Emergency Procedures .
9-1
3A-64
Helicopter, Mooring
2-117
HF MODEM Button
3-66.49
Helicopter, Towing
2-117
3A-64
HF Page
3-66.48
Hellfire Missile
4-97
3A-64
Hellfire Modular Missile System Description .
4-97
HF Page - ALE Mode
3-66.51
Hellfire Modular Missile System Operation .
4-97
3A-66
Helmet Display Unit (HDU)
4-9
HF Page - ALE Mode (figure)
3-66.51
3A-66
HF ALE NETS Page
3-66.51
3A-67
HF Page - ECCM Mode
3-66.52
3A-67
HF ALE NETS Page (figure)
3-66.51
HF Page - ECCM Mode (figure)
3-66.52
3A-67
3A-67
HF BACK Button
3-66.55
HF Page - MANUAL Mode (figure) .
3-66.48
3A-71
3A-64
HF CALL ADDRESS Page
3-66.53
HF Page - PRESET Mode
3-66.49
3A-68
3A-65
HF CALL ADDRESS Page
HF Page - PRESET Mode (figure) .
3-66.50
(AUTO Selected) (figure)
3-66.53
3A-65
3A-69
HF Page Button
3-66.13
HF CALL ADDRESS Page
3A-19
(NET Selected) (figure)
3-66.53
HF POWER Button
3-66.55
3A-68
3A-71
HF CALL ADDRESS Page
HF Preset Channel Buttons
3-66.50
(OTHER Selected) (figure)
3-66.54
3A-66
3A-69
HF PRESET Status Window
3-66.50
HF CALL ADDRESS Page
3A-65
(SPECIAL Selected) (figure)
3-66.53
HF PRESETS Page
3-66.50
3A-68
3A-66
HF CALL ADDRESS Status Window .
3-66.54
HF PRESETS Page (figure)
3-66.50
3A-66
HF CRYPTO BYPASS Button
3-66.56
HF Radio Advisory/Status Message (table) .
3-66.4
3A-71
3A-9
HF CRYPTO CNV Button
3-66.55
HF RECV EMISSION Button
3-66.17
3A-71
3A-27
HF CRYPTO DOWN ARROW Button .
3-66.55
HF RECV FREQ Button
3-66.16
3A-71
3A-27
HF CRYPTO INITIATE Button
3-66.55
HF Self Address Option Buttons
3-66.49
3A-71
3A-65
HF CRYPTO MODE Button
3-66.55
HF SELF ADDRESS Page
3-66.49
3A-71
3A-65
HF CRYPTO UP ARROW Button
3-66.55
HF SELF ADDRESS Page (figure) .
3-66.49
3A-71
3A-65
Use or disclosure of this information is subject to the restriction(s) on the title page of this document.
Index 22
Change 4
TM 1-1520-251-10
Subject
Page No.
Subject
Page No.
HF SELF ADDRESS Status Window .
3-66.49
Hover Ceiling Chart - 30 Minute Limit,
3A-65
(figure)
7-16
HF SET Page
3-66.55
Hover Ceiling Chart - 30 Minute Limit,
3A-70
701C (figure)
7A-17
HF SET Page (figure)
3-66.55
Hover Ceiling, Conditions, 701 Engine .
7-15
3A-70
Hover Ceiling, Conditions, 701C Engine .
7A-16
HF SET Page (FILL INFO Selected) (figure) .
3-66.56
Hover Ceiling, Description, 701 Engine .
7-15
3A-71
Hover Ceiling, Description, 701C Engine .
7A-16
HF SQUELCH Button
3-66.55
Hover Ceiling, Use of Chart, 701 Engine .
7-15
3A-71
Hover Ceiling, Use of Chart, 701C Engine .
7A-16
HF STATE Button
3-66.48
Hover Chart (figure)
7-18
3A-64
Hover Chart, 701C (figure)
7A-20
HF TEXT Buttons
3-66.36
3A-51
Hover Mode Symbology
4-11
HF XMIT EMISSION Button
3-66.17
Hover Torque (HOVER Q) Status Window,
3A-28
701 Engine,
7-2
HF XMIT FREQ Button
3-66.17
Hover Torque (HOVER Q) Status Window,
3A-28
701C Engine
7A-2
Hover, Chart Explanation, 701 Engine .
7-17
HF ZERO Page
3-66.56
3A-71
Hover, Chart Explanation, 701C Engine, .
7A-19
HF ZERO Page (figure)
3-66.56
Hover, Conditions, 701 Engine,
7-17
3A-72
Hover, Conditions, 701C Engine
7A-19
HF ZEROIZE BOTH Button
3-66.56
Hover, Description, 701 Engine,
7-17
3A-72
Hover, Description, 701C Engine
7A-19
HF ZEROIZE DATA Button
3-66.56
Hover, Maximum Gross Weight,
3A-72
701C Engine
7A-19
HF ZEROIZE KEYS Button
3-66.56
Hover, Maximum Hover Height,
3A-72
701 Engine
7-17
HFMSN Button (T3)
3A-91
Hover, Maximum Hover Height,
HIADC Select
2-138
701C Engine
7A-19
High Action Display (HAD) Format .
4-17
Hover, Use of Chart, 701 Engine, .
7-17
High Frequency Radio Antenna
2-6
Hover, Use of Chart, 701C Engine .
7A-19
High Winds, Ground Operations
8-20
HQ Mode Button
3-34
3-40
HMD - Gun Default Range
4-65
HQ1 (HAVE QUICK) Page
3-34
HMD Format Owner CUE
4-26
HQ1 or HQ2 Button
3-15
Hold Mode Engagement Regions (figure) .
2-56
3-66.13
Hold Modes
2-55
HQ1 Page (figure)
3-34
HOPSET Button
3-30
HQ1 SEG Page (figure)
3-35
3-66.43
3A-59
HQ1 SEQ Page
3-35
Horizontal Stabilator
2-53
HQ1 TSET Page
3-36
HQ1 TSET Page (figure)
3-36
Hot Section Module
2-31
HQ2 Page
3-36
Hot Start Prevention
2-35
HQ2 Page (figure)
3-36
Hover Ceiling Chart - 10 Minute Limit,
701C (figure)
7A-18
HQ2 SEG Page
3-36
Use or disclosure of this information is subject to the restriction(s) on the title page of this document.
Change 4
Index 23
TM 1-1520-251-10
Subject
Page No.
Subject
Page No.
HQ2 SEG Page (figure)
3-37
IDM FREE TEXT Buttons
3A-50
HQ2 TSET Page
3-37
IDM IN STANDBY Status Window .
3A-21
HQ2 TSET Page (figure)
3-37
IDM INHBT Button
3A-26
HSI Icon
3-77
IDM INHIBIT Status Window
3A-21
3A-115
IDM MISMATCH STATUS WINDOW .
3A-26
Hydraulic System Controls and Displays .
2-66
IDM NET JOIN Status Window (figure) .
3A-21
Hydraulic System Hand Pump
2-66
IDM OPER/STBY Button
3A-26
Hydraulic System Malfunctions
9-18
IDM Page
3-23
3A-24
Hydraulic System Servicing
2-117
IDM Page (figure)
3-23
Hydraulic System, Primary
2-62
3A-45
Hydraulic System, Utility
2-62
IDM Page Button
3A-19
Hydraulic Systems
2-62
IDM Physical Description
3-48
5-3
3-66.66
IDM Physical Description
I
and Implementation
3A-86
IDM Rocker Switch
3-66.8
IAT
4-35
3A-13
IAT Polarity Switch
4-34
IDM SET Page
3A-24
IBIT Listing Area (figure)
2-133
IDM Shot - At Icon
3-77
IBIT Page
2-132
3A-115
IBIT Page (figure)
2-132
IDM Status
4-51
IBIT Page Button
2-123
IFF, RT - 1471/APX - 100 Transponder .
3-10
Ice and Snow Removal
8-19
Ignition System
2-36
Ice Detect Probe
2-76
IHADSS Boresight Procedure - Pilot
and CPG
4-74
Ice or Snow, Preflight
8-18
IHADSS Description
4-9
Icing Operations
8-20
IHADSS Display Brightness
4-2
Icing Operations, Preflight/Run - Up .
8-20
IHADSS Display Contrast
4-2
ICS Mode Switch
3-12
3-66.10
IHADSS Fail
4-65
3A-15
IHADSS Single DP Operation
4-65
ICS/Radio Foot Controls
3-13
9-22
3-66.11
IHADSS Symbology Formats
4-9
3A-16
IHADSS/HDU Failure
9-21
IDENT Button
3-39
Illustrations, Aircraft General
1-2
3-66.40
Image Auto Track/Offset Switch
4-33
3A-54
IMAGE Button
4-70
IDENT Switch
3-12
IMAGE Page
4-72.3
3-66.10
3A-15
IMAGE Page (figure)
4-72.3
IDENTIFY Button
3-81
IMAGE Page / LIST Selected (figure) .
4-73
3A-123
IMAGE Page / SEL Selected (figure) .
4-73
IDM and TI Protocol Status Windows .
3A-20
Image ROTATE Button Left
4-72.4
IDM Button
3A-48
Image ROTATE Button Right
4-72.4
IDM button (BLK 2)
2-136
Image ROTATE Data Entry Button .
4-72.4
Use or disclosure of this information is subject to the restriction(s) on the title page of this document.
Index 24
Change 4
TM 1-1520-251-10
Subject
Page No.
Subject
Page No.
Image View Buttons
4-73
Interior Lighting Equipment
2-98
Immediate Action Emergency Steps .
9-1
Intermediate Gearbox
2-73
Improved Data Modem (IDM)
3-11
Internal Auxiliary Fuel and Ammo System
3-66.5
Instl, Fuel, and Ammo (table)
6-10.2
3A-11
Internal Auxiliary Fuel System Tank
Improved Data Modem Net Setup Procedure .
3-45
and Fuel (table)
6-10.1
Internal Auxiliary Fuel Tank Installed,
Improved data modem PRESET - net setup .
3-66.61
Fuel Page
2-50
3A-77
Improved FM (IFM)
3-9
Internal Auxiliary Fuel Transfer Operation .
2-50
3-66.3
Internal Auxilliary Fuel System (IAFS) .
2-43
3A-8
INTERNET PROTOCOL Button
3A-34
In Flight Electrical Fire
9-16
Interrupting a Process
2-15
In Flight Engine Fire
9-15
INTR LT Panel
2-98
INDEX Button (T6)
3A-91
Introduction, APU
2-94
Index, General Description
1-1
Introduction, Armament Systems
4-79
Inertia Reel Operation
2-8
Introduction, Communications Subsystem .
3-6
3-66.1
Infrared (IR) Suppression System .
2-37
3A-6
Initial Oil Pressure During Cold Weather .
8-19
Introduction, Data Management System .
2-120
Initialization
3-106
Introduction, Drive System
2-71
3A-153
Introduction, Electrical System
2-81
Input Drive Clutch Failure,
Main Transmission
9-14
Introduction, Flight Instruments
2-100
Input Tail Number
2-138
Introduction, General
2-1
Introduction, Navigation Subsystem .
3-67
Inspection/Maintenance Light
2-97
3A-102
INST Page
3A-122.4
Introduction, Passive Defense Equipment .
4-108
INST Page (figure)
3A-122.4
Introduction, Sighting Subsystem,
INST UTIL Page (figure)
3A-124
Sight Subsystem (figure)
4-1
INST Utility (UTIL) Page
3A-123
INU1/2 Reset Button
3-77
Instrument Flight Procedures
8-17
3A-116
Instrument Limit Marking Symbols (figure) .
5-2
IP ADDRESS Button
3A-24
Instrument Marking Code
5-2
IPAS Cautions
2-70
Instrument Markings
5-2
IPAS Control
2-70
IRJAM Button
4-115
Instrument Meteorological Conditions .
8-17
4-118
Instrument Variation, 701 Engine
7-8
ISEL Button
4-73
Instrument Variation, 701C Engine .
7A-8
Integrated Helmet and Display Sight
Subsystem (IHADSS) (figure)
4-10
J
Integrated Pressurized Air System (figure) .
2-68
Jettison System, Canopy
2-27
Integrated Pressurized Air System (IPAS) .
2-67
Jettison System, Stores
2-27
Interchangeable Fuels
2-107
Joint Variable Message Format
3A-18
Interior Check - Copilot/Gunner
8-11
JVMF ACK Button
3A-48
Interior Check - Pilot
8-7
JVMF Subscriber Symbol
3A-115
Use or disclosure of this information is subject to the restriction(s) on the title page of this document.
Change 4
Index 25
TM 1-1520-251-10
Subject
Page No.
Subject
Page No.
K
Last PAN Button
3-79
3A-122.2
Key Type Status Window
3-79
Last Push Button
3-11
3A-118
3-66.7
Keyboard Unit (KU)
2-24
LAST Selected (figure)
7A-6
Keyboard Unit (KU) (figure)
2-25
Last Selected (figure)
7-6
KEYS LOAD Status Window
3-79
LAST Topping Check Button
7A-5
3A-118
LAST Topping Check Button
7-5
Kit, Extended Range
2-43
LATE NET Button
3-30
KIT - 1C MODE 4 Computer
3-10
3-66.43
3-66.4
3A-59
3A-10
Lead Lag Links
2-74
Kits, First Aid
2-29
Left and Right Aux ON/OFF Buttons .
2-49
KU Keys
2-25
Left Handgrip
4-33
KU Lighting
2-25
LGBW Button
3-19
KU Operation
2-25
LHG (figure)
4-33
KY - 100 HF Radio Communication
Lighting Controls
2-97
Security System
3-66.4
3A-9
Lighting Equipment
2-96
Lighting Equipment, Exterior
2-96
Lighting Equipment, Interior,
2-98
L
Lightning Strike Causes Loss of Power .
8-20
L(ockout) Buttons
3-66.46
Lightning Strikes
8-20
3A-62
Lightning Strikes - Possible Results .
8-20
Land as Soon as Possible, Definition .
9-1
Limitations
APU
Land as Soon as Practicable, Definition .
9-2
Operating
5-8
Land Without Delay, Definition
9-1
Limitations, Engine Gas Generator (NG) .
5-6
Landing Gear Brakes
2-11
Limitations, Engine Power Turbine
Landing Limits
5-12
Speed (Np)
5-5
Landing, Slope/Rough Terrain
8-15
Limitations, Engine Starter
5-4
Laser Code (CODE) Page
4-8
Limitations, Engine Temperature (TGT) .
5-4
Laser CODE Button
4-4
Limitations, Torque
5-6
Laser Code Buttons
4-8
Limitations, Weight
5-9
Laser Code Frequency Buttons
4-8.1
Limits, 701 Engine
7-7
LASER CODES Button
3-24
Limits, 701C Engine
7A-7
3-66.35
Limits, Airspeed Operating
5-9
3A-49
Limits, Maneuvering
5-12
Laser Danger Areas
2-6
Line Button
3-95
Laser Frequency (FREQ) Page
4-8.1
3A-136
Laser Range
4-65
Line Icon
3-76
Laser Spot Tracker (LST)
4-36
3A-113
Laser Tracker Mode switch
4-34
Line Page
3-97
Laser Warning Sensors/CHAFF Dispensers .
6-12
3A-138
LAST FREQ Button
3-81
Line Page (figure)
3-97
3A-123
3A-138
Use or disclosure of this information is subject to the restriction(s) on the title page of this document.
Index 26
Change 4
TM 1-1520-251-10
Subject
Page No.
Subject
Page No.
Linear Motion Compensation (LMC) Switch .
4-34
Longbow HELLFIRE SAL C/K Missile
Loading (table)
6-13
LINES Button
3-24
3-66.35
Longbow Hellfire Semi - Active Laser
3A-49
(SAL) Missiles
6-12
LINK PROTECT Button
3-66.55
LONGBOW ORIG ID Button
3-66.14
3A-70
3A-22
LONGBOW PROTOCOL
3-66.22
LIST Button
4-72.4
3A-32
LISTEN BEFORE CALL Button
3-66.55
Longbow PROTOCOL
3-20
3A-70
Loss of Tail Rotor Thrust - General .
9-13
LISTEN BEFORE TALK Button
3-66.55
Loss of Tail Rotor Thrust at
3A-70
Low Airspeed/Hover
9-13
LMC On and Laser Firing Indicators (figure) .
4-16
Loss of Tail Rotor Thrust in Cruise Flight .
9-13
LMP Capabilities
3-8
Low Altitude/Low Airspeed and Cruise,
3-66.6
Dual Engine Failure
9-11
3A-12
Low Altitude/Low Airspeed and Cruise,
LMP CRYPTO Selection
3-66.7
Single Engine Failure
9-6
3A-13
Low Level and Auxiliary Isolation Valves .
2-65
LMP Lighting
3-8
Low RPM Rotor - Np Failed Low
9-12
3-66.6
3A-12
LRFD Button
4-4
LRFD Status Window
4-5
LNCHR ARM Button
4-91
LRFD Trigger
4-34
LOAD Button
4-91
LRFD/LST Status Window
4-8
Load Maintenance Panel
3-7
LST Status Window
4-5
4-117
Lubrication System
2-94
Load Maintenance Panel (figure)
3-8
3-66.6
3A-12
M
4-81
M141 General Purpose Aircraft Chaff
Load Maintenance Panel (LMP)
3-66.6
Dispenser, System Description,
4-113
3A-11
M141 General Purpose Aircraft Chaff
4-80
Dispenser, System Operation
4-113
Load Maintenance Panel Controls .
4-69
M141 General Purpose Aircraft Dispenser
LOAD Page (figure)
4-91
(CHAFF)
4-113
Loading Data
6-4
M230E1 30mm Automatic Gun
4-93
Loading Limits, CG
5-9
M230E1, 30mm Gun - Dynamic
Harmonization (CPG Only)
4-103
Loading, Allowable
6-18
M230E1, 30mm Gun-FIRE GUN Procedure .
4-102
Loading, Cargo
6-16
Main Landing Gear
2-11
LOCATION CURR/MSN1/MSN2 Buttons .
3-22
Main Rotor Assembly
2-74
Longbow Hellfire Missile System
Main Rotor Blades
2-74
Operating Procedure
4-103
Main Rotor Components, Failure
9-20
Longbow Hellfire Radar Frequency
(RF) Missiles
6-12
Main Rotor Drive System
2-71
Main Tanks - Fuel Loading (table)
6-7
Longbow HELLFIRE RF Missile
Loading (table)
6-13
Main Transmission
2-72
Use or disclosure of this information is subject to the restriction(s) on the title page of this document.
Change 4
Index 27
TM 1-1520-251-10
Subject
Page No.
Subject
Page No.
Main Transmission Input Drive Clutch Failure .
9-14
Manual Loading of IDM NET Data .
3-45
Main Transmission Servicing
2-117
Manual Loading of IDM PRESET-NET Data .
3-66.61
3A-77
Main XMSN Low Oil Temperature Sensor .
2-95
Manual Loading of SINCGARS Data .
3-43
Maintained Pushbutton Operation (figure) .
2-15
3-66.59
Maintenance Data Recorder (MDR) .
2-121
3A-75
Malfunction, Stabilization Equipment .
9-20
Manual Mode, Stabilator
8-14
Malfunctions, Electrical System
9-17
Manual Track
4-35
Malfunctions, Flight Controls
9-19
Map Border Symbol
3-75
Malfunctions, Hydraulic System
9-18
MAP Button
3A-110
Malfunctions, Tail Rotor
9-13
Map Datums
3-69
MAN FREQ Button
3-66.43
3A-104
3A-59
Map Frozen Cue
3-74
MAN FREQUENCY Button
3-30
3A-110
MAN Page
3-16
MAP Page
3A-118
3-66.16
MAP Page (DIG Map) (figure)
3A-118
3A-26.1
MAP PAGE - CHART Map
3A-122
MAN Page (figure)
3-16
MAP Page - DIG Map
3A-118
3-66.16
MAP PAGE - SAT Map
3A-122.1
3A-27
MAP PAGE - STICK Map
3A-122.2
MAN Page Button
3-15
3-66.13
Map Scale (SC) Button
3-72
3A-20
3A-107
MAP Viewing Range (Extended) (figure) .
3A-108
MAN SOI AUTH Page
3A-28
Markings, Instruments
5-2
MAN SOI AUTH Page (figure)
3A-28
Mast Mounted Assembly
4-36.2
MAN SOI EXPND Page (figure)
3A-28.2
Master Control
3-12
MAN TUNE Button
3-30
3-66.10
3-66.43
3A-15
3A-59
Master Load
2-127
Maneuvering Limits
5-12
MASTER OFF button (BLK 2)
2-136
Maneuvers, Operating Procedures and .
8-2
Master Warning/Master Caution
Manifold Pressure and Return Filters .
2-62
Lighted Buttons (figure)
2-140
2-65
Master Zeroize Switch
2-29
Manifold, Primary, Hydraulic
2-62
Master Zeroize Switch (figure)
2-30
Manifold, Utility Hydraulic
2-65
Max Torque, Conditions, 701 Engine .
7-10
MANRNG Button
4-5
Max Torque, Conditions, 701C Engine .
7A-10
Manual (MAN) Button
3-102
Max Torque, Description, 701 Engine .
7-10
3A-143
Max Torque, Description, 701C Engine .
7A-10
Manual Boresight Adjust Procedure (ORT) .
4-78.3
Max Torque, Use of Charts, 701 Engine .
7-10
Manual Elevation Control
Considerations (figure)
4-43
Max Torque, Use of Charts, 701C Engine .
7A-10
Maximum Airspeed for External
Manual Entry Range
4-65
Tanks Jettison
5-9
Manual Loading HQ Data
3-41
Maximum Airspeed for Searchlight Extension .
5-9
3-66.57
3A-73
Maximum Airspeed for Stores Jettison .
5-9
Use or disclosure of this information is subject to the restriction(s) on the title page of this document.
Index 28
Change 4
TM 1-1520-251-10
Subject
Page No.
Subject
Page No.
Maximum Airspeed with Symmetrically
MEMBER Buttons
3-66.28
Loaded External Fuel Tanks (2 or 4) installed .
5-9
3A-40
3A-42
Maximum Airspeeds During Manual Stabilator
Operations
5-9
MEMBER C/S Button
3-66.28
3A-40
Maximum Endurance and Rate of Climb
(Cruise), 701 Engine
7-19
Member Call Sign Button
3-19
Maximum Endurance and Rate of Climb
MEMBER DEL Button
3-66.27
(Cruise), 701C Engine
7A-21
3A-39
Maximum Gross Weight (Hover),
Member Delete Button
3-19
701C Engine
7A-19
MEMBER IDM Status Window
3-66.28
3A-41
Maximum Gross Weight (MAX GWT)
Status Window, 701 Engine
7-3
MEMBER IP (Fire Support) ID Button .
3A-40
Maximum Gross Weight (MAX GWT)
MEMBER PRI Button
3-66.28
Status Window, 701C Engine
7A-3
3A-40
Maximum Gross Weight, 701 Engine .
7-17
MEMBER Review Status
3A-42
Maximum Hover Height (Hover),
MEMBER Status Window
3-66.28
701 Engine
7-17
3A-41
Maximum Hover Height (Hover),
MEMBER SUB (Longbow/Tacfire) ID Button .
3-66.28
701C Engine
7A-19
3A-40
Maximum Range (Cruise), 701 Engine .
7-19
Member Subscriber Button
3-19
Maximum Range (Cruise), 701C Engine .
7A-21
MEMBER TEAM Button
3-66.27
3A-39
Maximum Rearward/Sideward Flight Speed .
5-9
MEMBER URN (Fire Support) ID Button .
3A-39
Maximum Torque (MAX Q) Status Window,
MEMBER URN (Internet) ID Button .
3A-40
701 Engine
7-3
Menu Page (figure)
2-18
Maximum Torque (MAX Q) Status Window,
701C Engine
7A-3
Message Buttons
3-22
Maximum Torque Available Chart -
Message Buttons
3-66.30
2.5 Minute Limit, 701 (figure)
7-12
3A-45
Maximum Torque Available Chart -
Message Buttons (FIELD ORDER Selected)
30 Minute Limit, 701 (figure)
7-11
(figure)
3A-45
Maximum Torque Available-
Message Buttons (figure)
3-23
10 Minute Limit 701C (figure)
7A-12
Message Receive Buttons
3-66.31
3A-46
Maximum Torque Available-
2.5 Minute Limit 701C (figure)
7A-13
Message Receive Page (figure)
3-22
Maximum Torque Available-
Message Send Buttons
3-66.33
30 Minute Limit 701C (figure)
7A-11
Messages (table)
3A-80
MBR DIR Page
3A-42
MFD FLT Page Buttons
2-100
MBR DIR page (figure)
3A-42
MFD FLT Page Graphics
2-100
MBR DIR Page Button
3A-40
MFD FLT Page with FLT SET
MBR DIR REPLACE Item Location
Selected Buttons
2-104
Format (figure)
3A-43
MFD FLT Page, FLT SET Selected .
2-104
MBR DIR RESULTS Format (figure) .
3A-43
MIL - STD - 1553B MULTIPLEX
(MUX) BUSES
2-12
MBR SRCH Status Bar
3A-43
Minimum Crew Requirements
5-1
Member
3-66.12
3A-17
Miscellaneous Load
2-127
Use or disclosure of this information is subject to the restriction(s) on the title page of this document.
Change 4
Index 29
TM 1-1520-251-10
Subject
Page No.
Subject
Page No.
Missile Advance (MSL ADV) Switch .
4-82
Mode 4 Code Button
3-38
3-66.40
Missile Channel (CHAN) Page
4-93
3A-54
Missile Constraint Boxes (figure)
4-16.1
Mode 4 Hold Button
3-39
Missile Constraints Boxes -
Mode Button
3-82
Training Mode (figure)
4-98
3A-124
Missile Launch Types
4-97
Mode C Button
3-38
Missile Launcher
4-97
3-66.39
Missile Launcher Rail Icons (figure) .
4-89
3A-53
Missile launcher Status Icons (figure) .
4-89
Reply Button
3A-55
Missile Launchers
6-12
Mode S Button
3A-55
MISSION 1 (or 2) Buttons
3-66.33
MODEM Page
3-19
3A-48
MODEM Page (figure)
3-19
Mission 1 Data Load
2-128
MODEM Page Button
3-17
3-66.19
Mission 1 Data Selections (figure) .
2-128.1
3-66.21
MISSION 1/2 Buttons
3-23
3-66.28
Mission 2 Data Load
2-129
3A-30
3A-32
MISSION Button
4-50
3A-40
Mission Control Grip Cursor Controls (figure) .
2-20.1
MODEM Page TACFIRE Protocol (figure) .
3A-88
2-20.2
MODEM Page With FIRE SUPPORT
Mission Equipment
6-12
NET ACCESS Selected (figure)
3A-35
Mission Equipment Failure
9-21
MODEM Page With FIRE SUPPORT
Mission Equipment Package Architecture
Selected (IDM Mismatch Detected) (figure) .
3A-34
(figure)
2-13
MODEM Page With LONGBOW
Mission Planning
8-2
Selected (figure)
3-66.22
Mixing of Fuels
2-107
3A-32
MMA Components
4-37
MODEM Page With TACFIRE and BAUD RATE
Selected (figure)
3-66.23
MMA Major Components (figure)
4-37
3A-33
MODDE S Status Button
3A-55
MODEM Page with TACFIRE and BAUD RATE
Mode 1 Button
3-38
Selected (figure)
3-21
3-66.39
MODEM Page With TACFIRE Selected
3A-53
(figure)
3-66.22
Mode 1 Code Button
3-38
3A-33
Mode 2 Button
3-38
MODEM Page with TACFIRE Selected
3-66.39
(figure)
3-20
3A-53
Modem, Improved Data (IDM)
3-11
Mode 3/A Button
3-38
Module, Accessory Section
2-33
3-66.39
Module, Cold Section
2-31
3A-53
Module, Hot Section,
2-31
Mode 3/A Code Button
3-38
Module, Power Turbine
2-31
Mode 2 Button
3A-55
Momentary Pushbutton (figure)
2-15
Mode 4 Button
3-38
Momentary RPM Increase
9-7
3-66.39
3A-53
Moments, Personnel
6-11
Use or disclosure of this information is subject to the restriction(s) on the title page of this document.
Index 30
Change 4
TM 1-1520-251-10
Subject
Page No.
Subject
Page No.
Mooring the Helicopter
2-117
MSG REC Button
3-15
3-66.13
MOVE Button
4-73
3A-20
Movement Command Communications .
3-59
MSG REC Page
3-21
3-66.75
3-66.29
MOVEMENT Page (figure)
3A-95
3A-44
MOVEMENT Page (INDEX L3)
3A-95
MSG REC Page (HF PP Selected) (figure) .
3-66.32
3A-47
MPD Bezel Pushbutton Controls
2-15
MSG REC Page (HF RVW Selected) (figure)
3-66.31
MPD Button Control Affect
2-15
3A-46
MPD Color Application
2-22
MSG REC Page (Source HF) (figure) .
3-66.31
MPD Cursor Control
2-20.2
3A-46
MPD Cursor Operation
2-22
MSG REC Page (Source IDM) (figure) .
3-66.29
3A-44
MPD Cursor Panning Operation (figure) .
2-21
MSG SECURITY
2-127
MPD Cursor Symbol (figure)
2-21
MSG SECURITY Button
3A-25
MPD Cursor Symbol FCR Zoom Operation
MSG SEND Button
3-15
(figure)
2-21
3-66.13
MPD Cursor Symbol Target Reference Point
3A-20
(figure)
2-21
MSG SEND Page
3-66.32
MPD Engine Indication
2-38
3A-47
MPD FLT Page
2-100
MSG SEND Page (figure)
3-66.30
3-66.32
MPD FLT Page and HMD TGT (table) .
2-42
3A-47
MPD FLT Page with FLT SET Selected
MSG SEND Page (HF PP Selected)
Graphics
2-105
(figure)
3-66.34
MPD FMC Controls
2-54
MSG SEND Page (HF RVW Selected)
MPD Format Appearance
2-24
(figure)
3-66.33
MPD Format Control
2-24
MSGS/FTXT (MESSAGE TYPES) Page
(figure)
3A-97
MPD Format Selection
2-24
MSGS/FTXT Page (INDEX R4)
3A-97
MPD Fuel Management Page
2-46
MSL Available/MSL PWR (AUTO Mode)
MPD Pages
2-18
(figure)
4-88
MPD Pages During Single Display Processor
MSL Button
4-85
(DP) Operation
2-23
4-91
MPD PERF Page (figure)
7-2
MSL FARM Data (figure)
3-100
MPD PERF Page 701C (figure)
7A-2
3A-141
MSN TYPE Button
3A-25
MPD Status Indications and Readouts .
2-22
MTADS Internal Boresight Procedure .
4-78.2
MPD Status Indicators and Readouts (figure) .
2-22
Multi - State Pushbutton Operation (figure) .
2-16
MPD Tactical Situation Display (TSD) .
3-71
Multicast
3A-18
3A-106
Multipurpose Display (figure)
2-14.1
MPD Viewability Controls
2-14.1
Multipurpose Display (MPD)
2-14
MPS IDM MESSAGE Buttons
3A-51
MUX Bus Channel 1
2-12
MPS TEXT Button
3A-50
MUX Bus Channel 2
2-12
MSG Button
3A-149
MUX Bus Channel 3
2-12
3A-151
MUX Bus Channel 4
2-12
Use or disclosure of this information is subject to the restriction(s) on the title page of this document.
Change 4
Index 31
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