TM 1-1520-240-10 B-2            ABBREVIATION TERM DCP Differential Collective Pitch . . . . . . . . DEC Decrease . . . . . . . . DEST Destination . . . . . . . DET or DETR Detector . . . . . . . DF Direction Finder . . . . . . . . . . DIM Dimensions . . . . . . . . . DIS Disable . . . . . . . . . DISCH Discharge . . . . . . DISP Display or Dispenser . . . . . . . . DIST Distance . . . . . . . . DN Down . . . . . . . . . . DOP Doppler . . . . . . . . DSPL Display . . . . . . . DU Display Unit . . . . . . . . . . E East . . . . . . . . . . . EAPS Engine Air Particle Separator . . . . . . . ECM Electronic Countermeasure . . . . . . . . ECCM Electronic Counter Countermea . . . . . . . sures EDT Edit . . . . . . . . EMER or EMERG Emergency . . . . . ENG Engine . . . . . . . . ENT Enter . . . . . . . . ERFS Extended Range Fuel System . . . . . . . ERFS II Extended Range Fuel System II . . . . . ETL Effective Translational Lift . . . . . . . . . EXH Exhaust . . . . . . . . EXT Extend, Extinguisher, or External . . . . . . . . . F Fahrenheit . . . . . . . . . . . FADEC Full Authority Digital Electronic . . . . . . Control FARE Forward Area Refueling . . . . . . . Equipment FAT Free Air Temperature . . . . . . . . . FCP Fuel Control Panel . . . . . . . . FH Frequency Hopping . . . . . . . . . . FIG Figure . . . . . . . . . FIL Filament . . . . . . . . . FL Flow . . . . . . . . . . FLP Flight Plan . . . . . . . . . FLT Flight . . . . . . . . . FLT CONT Flight Control . . . FM Frequency Modulated . . . . . . . . . FMCP Fuel Management Control Panel . . . . . . . ABBREVIATION TERM FM-M Frequency Hopping Master . . . . . . . FMT Frequency Managed Training . . . . . . . . FOD Foreign Object Damage . . . . . . . . FPM or FT/MIN Feet per Minute . . . . . . FREQ or FRQ Frequency . . . . . . . . FT Feet . . . . . . . . . . FUSLG or FUS Fuselage . . . . . . . . FWD Forward . . . . . . . . G Green . . . . . . . . . . . G’s Gravity . . . . . . . . . GALS Gallons . . . . . . . GCA Ground Controlled Approach . . . . . . . . GC XMIT Guard Transmitter . . . . GEN Generator . . . . . . . . GMT Greenwich Mean Time . . . . . . . . GND Ground . . . . . . . . GPM Gallons per Minute . . . . . . . . GS Glide Slope . . . . . . . . . . GS/TK Ground Speed/Track . . . . . . GW Gross Weight . . . . . . . . . GYRO(s) Gyroscope(s) . . . . H High . . . . . . . . . . . HDG Heading . . . . . . . . HF High Frequency . . . . . . . . . . Hg Mercury . . . . . . . . . . HGT Height . . . . . . . . HI High . . . . . . . . . . HICHS Helicopter Internal Cargo Handling . . . . . . System HIGE Hover In Ground Effect . . . . . . . . HIT Health Indicator Test . . . . . . . . . HOGE Hover Out of Ground Effect . . . . . . . HR Hour . . . . . . . . . . HSI Horizontal Situation Indicator . . . . . . . . . HTG Heating . . . . . . . . HTR Heater . . . . . . . . HUD Heads Up Display . . . . . . . . HYD Hydraulic . . . . . . . . Hz Hertz . . . . . . . . . . I Inner . . . . . . . . . . . . IAS Indicated Airspeed . . . . . . . . . ICS Intercommunication System . . . . . . . . .