TM 55-1520-240-T 1-7 GLOSSARY 1-7 Abbreviations ACCEL  ........................................   ACCELEROMETER ACTR  ..........................................   ACTUATOR ADT  ............................................   AIR DATA TRANSDUCER AFCS  ..........................................   ADVANCED FLIGHT CONTROL SYSTEM ALT  .............................................   ALTIMETER AMPLT  ........................................   AMPLIFIER APU  ............................................   AUXILIARY POWER UNIT ASSY ..........................................   ASSEMBLY ATT .............................................   ATTITUDE AUTO ..........................................   AUTOMATIC AUX  ............................................   AUXILIARY AVWS .........................................   ALTITUDE VOICE WARNING SYSTEM BAL  ............................................   BALANCE BARO  .........................................   BAROMETRIC BATT  ..........................................   BATTERY BL ...............................................   BUTT LINE BLK  ............................................   BLACK BOT  ............................................   BOTTOM BRG ............................................   BEARING BRK  ............................................   BRAKE BRT  ............................................   BRIGHT BST  ............................................   BOOST B/U  .............................................   BACK UP CAB  ............................................   CABIN CB  ..............................................   CIRCUIT BREAKER CCD ............................................   COCKPIT CONTROL DRIVER CCU ............................................   CONVERTER CONTROL UNIT CDU ............................................   COPILOT'S DISPLAY UNIT CDU ............................................   CONTROL DISPLAY UNIT CGI  .............................................   CRUISE GUIDE INDICATING CHK  ............................................   CHECK CKPT  ..........................................   COCKPIT CKT  ............................................   CIRCUIT COMPT  .......................................   COMPONENT COLL  ..........................................   COLLECTIVE COLL  ..........................................   COLLISION COMB  .........................................   COMBINING COMP  .........................................   COMPASS COND  .........................................   CONDITION CONT  .........................................   CONTROL CONTR  .......................................   CONTROL CPLT  ..........................................   CO-PILOT CPT  ............................................   CONTROL POSITION TRANSDUCER CSL  ............................................   CONSOLE CTR  ............................................   CENTER CUT  ............................................   CURRENT CW  .............................................   CLOCKWISE DASH ..........................................   DIFFERENTIAL AIRSPEED HOLD DECU  .........................................   DIGITAL ELECTRONIC CONTROL UNIT DEPRESS  ...................................   DEPRESSURIZING DET  ............................................   DETECTOR (WITHOUT  74 ) DETR  ..........................................   DETECTOR (WITH  74 ) DEV  ............................................   DEVIATION DGNS  .........................................   DOPPLER GPS NAVIGATION SYSTEM DIFF  ...........................................   DIFFERENTIAL DIR  .............................................   DIRECTIONAL DISC  ...........................................   DISCONNECT ELEC  ..........................................   ELECTRIC EMER  .........................................   EMERGENCY EMERG .......................................   EMERGENCY ENG ............................................   ENGINE EPE  ............................................   ESTIMATED POSITION ERROR EXH  ............................................   EXHAUST EXT  ............................................   EXTENSIBLE EXT  ............................................   EXTERNAL EXT  ............................................   EXTINGUISHER FIL  ..............................................   FILAMENT FLT  .............................................   FLIGHT FM  ..............................................   FIGURE OF MERIT FORM  .........................................   FORMATION FWD  ...........................................   FORWARD GD  ..............................................   GEAR BOX GD  ..............................................   GROUND DEVICE GEN ............................................   GENERATOR GPS ............................................   GLOBAL POSITIONING SYSTEM GRN  ...........................................   GREEN HMU  ...........................................   HYDROMECHANICAL UNIT HSI  .............................................   HORIZONTAL SITUATION INDICATOR HTG  ............................................   HEATING HTR  ............................................   HEATER HUD ............................................   HEADS UP DISPLAY HV  ..............................................   HIGH VOLTAGE HYD  ............................................   HYDRAULIC HYDR  .........................................   HYDRAULIC IGN  .............................................   IGNITION IND  .............................................   INDICATOR INSTAL  .......................................   INSTALLATION INSTR  .........................................   INSTRUMENT INTMD  ........................................   INTERMEDIATE INVERT .......................................   INVERTER JCT  .............................................   JUNCTION JPR .............................................   JUMPER L  .................................................   LOW LCT .............................................   LONGITUDINAL CYCLIC TRIM LDG  ............................................   LANDING LH ...............................................   LEFT HAND LONG  .........................................   LONGITUDINAL LT  ...............................................   LIGHT LTG  ............................................   LIGHTING LV ...............................................   LOW VOLTAGE LVL  .............................................   LEVEL M/W ............................................   MATE WITH MAG  ...........................................   MAGNETIC MAINT .........................................   MAINTENANCE MAN  ...........................................   MANUAL MECH  .........................................   MECHANICAL NAV  ............................................   NAVIGATION NC  ..............................................   NORMALLY CLOSED NO  ..............................................   NORMALLY OPEN NO  ..............................................   NUMBER NORM .........................................   NORMAL NR%  ...........................................   PERCENTAGE OF ROTOR RPM OAT  ............................................   OUTSIDE AIR TEMPERATURE OV  ..............................................   OVERVOLTAGE OVHD  .........................................   OVERHEAD OVSP  .........................................   OVERSPEED PDP  ............................................   POWER DISTRIBUTION PANEL PDU  ............................................   PILOT'S DISPLAY UNIT PH  ..............................................   PHASE PLT  .............................................   PILOT PNL  ............................................   PANEL PRI  .............................................   PRIMARY POS ............................................   POSITION POSN  .........................................   POSITION POT  ............................................   POTENTIOMETER PRESS  .......................................   PRESSURE PROD  .........................................   PRODUCER PTIT ............................................   POWER TURBINE INLET TEMPERATURE PWR  ...........................................   POWER QTY  ............................................   QUANTITY R  ................................................   RIGHT RAD  ............................................   RADAR RCCO  .........................................   REVERSE CURRENT CUT OUT RCPT  ..........................................   RECEPTACLE RECEPT  .....................................   RECEPTACLE REF  ............................................   REFERENCE RECTG  .......................................   RECTIFIER REL  ............................................   RELEASE REV  ............................................   REVERSE (WITHOUT  74 ) REV  ............................................   REVERSIONARY (WITH  74 ) RH  ..............................................   RIGHT HAND RTA  ............................................   RECEIVER TRANSMITTER ANTENNA SCHLT  ........................................   SEARCHLIGHT SDC  ............................................   SIGNAL DATA CONVERTER SEC  ............................................   SECONDARY SEL  ............................................   SELECT SHLD  ..........................................   SHIELD SIG  .............................................   SIGNAL SLT  .............................................   SEARCHLIGHT SOL  ............................................   SOLENOID STA  ............................................   STATION STBY  ..........................................   STANDBY STEERG  .....................................   STEERING SW  .............................................   SWITCH SYS  ............................................   SYSTEM TACH  ..........................................   TACHOMETER GO TO NEXT PAGE Change 17  1-87