民用航空机务维修专业英语

轮档挡好-- Chocks in 地面电源设备接好--Ground power connected 收到-- Roger 现在关闭发动机--Shutting down engines 准备牵引-- Ready for pushback 所有舱门已关好--All doors checked closed 松刹车-- Brakes off 松刹车-- Release parking brakes 刹车已松-- Brakes off 刹车已松-- parking brake Released 可以牵引 --Clear for pushback 23号跑道起飞--Runway( or face)two three 05号跑道起飞--Runway( or face)zero five 牵引完成 --Pushback complete 刹车 --Brakes on 刹车 --Set parking brake 刹车刹好 --Brakes on 刹车刹好-- Parking brake set 准备启动1（或2）号发动机--Start number one(or two) 可以启动1（或2）号发动机--Clear number one(or two) 已经供气（如需气源车）--Preure on 启动结束 --Start complete 断开地面设备-- Disconnect ground equipment 插销移开 --Ping Removed 稍等 --Standby 稍等启动-- Standby for start 稍等推出-- Standby for pushback 在左（或右）方打手势--Hand signal on the left(or right)

aircraft crew, air crew 机组, 机务人员 pilot 驾驶员, 机长

co-pilot, second pilot 副驾驶员 navigator 领航员 steward 男服务员

stewarde, hoste 空中小姐 radio operator 报务员

Bairliner 班机 monoplane 单翼飞机 glider 滑翔机 trainer aircraft 教练机 paenger plane 客机

propeller-driven aircraft 螺旋桨飞机 jet (aircraft) 喷射飞机 amphibian 水陆两用飞机

seaplane, hydroplane 水上飞机 turbofan jet 涡轮风扇飞机 turboprop 涡轮螺旋桨飞机 turbojet 涡轮喷射飞机 transport plane 运输机 helicopter 直升机 supersonic 超音速 hypersonic 高超音速 transonic 跨音速 subsonic 亚音速 Airbus 空中客车 Boeing 波音 Concord 协和 Ilyusin 依柳辛

McDonald-Douglas 麦道 Trident 三叉戟 Tupolev 图波列夫

hatch 舱口

aeroengine, air engine 航空发动机 navigation light 航行灯 fuselage, body 机身 nose 机头 wing 机翼 aileron 副翼 wing flap 襟翼

tail plane 水平尾翼 starboard wing 右翼 port wing 左翼

pilot"s cockpit 驾驶舱 parachute 降落伞 paenger cabin 客舱 propeller 螺旋桨

preurized cabin 密封舱 undercarriage 起落架

undercarriage wheel 起落架轮 elevator 升降舵

radio navigation device 无线电导航设备 radio directive device 无线电定向设备 luggage compartment 行李舱 (fuel) tank 油箱

auxiliary (fuel) tank 副油箱 main (fuel) tank 主油箱 autopilot 自动驾驶仪

ground crew 地勤人员 airport 航空港, 民航机场

airfield, aerodrome, airdrome 机场 airport beacon 机场灯标

airport meteorological station 机场气象站

main airport building, terminal building 机场主楼

emergency landing runway, forced landing runway 紧急着陆跑道 taxiway 滑行跑道 runway 跑道

omnirange radio beacon 全向式无线电航空信标 fuel depot 燃料库 control tower 塔台 tarmac 停机坪

radio beacon 无线电信标

boarding check 登机牌 plane ticket 飞机票 flight, flying 飞行

bumpy flight 不平稳的飞行 smooth flight平稳的飞行 ramp 扶梯

altitude, height 高度 air route, air line 航线 extra flight 加班

economy cla, tourist cla 经济座 non-stop flight 连续飞行

climbing, to gain height 爬升 circling 盘旋

forced landing 迫降

connecting flight 衔接航班 speed, velocity 速度 ceiling 上升限度

cruising speed 巡航速度 top speed 最高速度 first cla 头等 night service 夜航 airsick 晕机

direct flight, straight flight 直飞 landing 着陆

to rock, to to, to bump 颠簸 to taxi along 滑行

to lose height, to fly low 降低 to take off, take-off 起飞

to board a plane, get into a plane 上飞机

to get off a plane, alight from a plane 下飞机 to face the wind 迎风

ATA章节目录

AIRFRAME SYSTEMS ________________ AIR CONDITIONING........................21 AUTOFLIGHT...........................22 COMMUNICATIONS.........................23 ELECTRICAL POWER........................24 EQUIPMENT/FURNISHINGS .....................25 FIRE PROTECTION ........................26 FLIGHT CONTROLS ........................27 FUEL..............................28 HYDRAULIC POWER ........................29 ICE AND RAIN PROTECTION ....................30 INDICATING/RECORDING SYSTEMS..................31 LANDING GEAR..........................32 LIGHTS.............................33 NAVIGATION...........................34 OXYGEN.............................35 PNEUMATIC ...........................36 WATER AND WASTE ........................38 AIRBORNE AUXILIARY POWER....................49 STRUCTURE _________ DOORS .............................52 ＷＩＮＤＯＷS ............................56 POWER PLANT ___________ POWER PLANT ..........................71 ENGINE.............................72 ENGINE FUEL AND CONTROL ....................73 IGNITION............................74 AIR ..............................75 ENGINE CONTROLS ........................76 ENGINE INDICATING .......................77 EXHAUST ............................78 OIL ..............................79 STARTING............................80

缩写 ABBREVIATION LIST A A/C air conditioning 空气调节 A/G air/ground A/L autoland 自动落地 A/P autopilot 自动驾驶 A/S airspeed 空速

A/T autothrottle自动油门, adjustment/test 调整/测试 ABNORM abnormal 不正常的

AC alternating current 【电】交流电

ACARS ARINC Communications Addreing and Reporting System ACCEL acceleration, accelerate 使增速 ACM air cycle machine 空气循环机 ADC air data computer 大气资料电脑

ADF automatic direction finder 自动方位寻找器 ADI attitude director indicator 姿态指示器

ADP air driven pump, air driven hydraulic pump 气动液压泵 ADV advance 推进

AFCS automatic flight control system 飞控系统 AGL above ground level 地标位 AI anti-ice 防冰

AIDS aircraft integrated data system 整合资料系统 AIL aileron 副翼 ALT altitude 高度 ALTM altimeter 高度计 ALTN alternate 交替的 ALTNT alternate 交替的 AMB ambient 环绕的

AMM Airplane Maintenance Manual 修护手册 ANN announcement 通告 ANNUNC annunciator 通告器 ANT antenna 天线

AOA angle of attack 功角

APB auxiliary power breaker 辅助的动力断电器 APD approach progre display 接近行进显示 APL airplane 飞机 APPR approach 接近

APPROX approximately近乎

APU auxiliary power unit 辅助的动力单元 ARINC Aeronautical航空学的Radio Incorporated【美】有限责任的 ARINC IO ARINC I/O error ARNC STP ARINC I/O UART data strip error 通用非同步收发传输器 ASA autoland status annunciator 自动落地状况通告器 ASP audio selector panel 音频选择面板 ASYM asymmetrical 非对称的

ATC air traffic control 空中交通管制

ATC/DABS air traffic control/discrete addre beacon system ATT attitude 姿态

ATTND attendant 服务员 AUTO automatic 自动装置的 AUX auxiliary 辅助的

AVM airborne vibration monitor 空中震动监视器 B B/CRS back course 回程 BARO barometric 气压计的 BAT battery 电池;蓄电池

BFO beat扑动frequency oscillator 频率振汤器 BITE built-in test equipment 装备自我测试 BK brake 煞住(车) BKGRD background (干扰录音或无线电广播的)杂音 BPCU bus power control unit 汇流排电力控制单元 BRKR breaker 断电器 BRT bright 发亮的

BTB bus tie束缚breaker 汇流排联系断电器 BTL bottle 瓶子 C C/B circuit breaker 【电】断路器,断路开关 C center 中央

CADC central air data computer 中央大气资料电脑 CAPT captain (飞机的)机长

CB circuit breaker 【电】断路器,断路开关 CCA central control actuator 中央控制致动器 CCW counterclockwise 逆时针方向的 CDU control display unit 控制显示器 CH channel 频道 CHAN channel 频道 CHG change 改变

CHR chronograph 记时器 CHRGR charger 充电器 CK check 检查

CKT circuit 【电】电路;回路 CL close 关闭;盖上;合上 CLB climb 倾斜向上 CLR clear 变乾净;变清楚

CLSD closed 关闭的;封闭的;闭合的 CMD command 命令 CMPTR computer 电脑

CNX cancelled 取消,废除;中止 COL column 圆柱 (报纸的)栏,段 COMM communication 通讯 COMP compreor 压缩机 COMPT compartment 隔间

CON continuous 连续的,不断的 COND condition 状态

CONFG configuration 结构;表面配置 CONFIG configuration 结构 CONN connection 连接 CONT control 控制

CP control panel 控制面板

CPCS cabin preure control system 舱压控制系统 CPS cycles per second 每秒循环 CRS course 方向

CRT cathode阴极ray射线 tube 阴极射线管 CRZ cruise 巡航

CSEU control system electronics unit 控制系统电子元件 CT current电流transformer变压器 CTN caution 注意 CTR center 中央

CU control unit 控制元件 CUST customer 顾客;买主 CW clockwise 顺时针方向的

CWS control wheel steering掌舵 D DA drift漂移angle DADC digital air data computer 数位化大气资料电脑 DC direct直系的,指挥current DEC decrease减少, decrement减少率 DECEL decelerate 降低速度 DECR decrease 减少 DEG degree 度数

DEPR depreurize 洩压; 压下 DEPT departure 离开;出发

DEST destination 目标, 目的地 DET detector 探测器

DETNT detent (机械上的)止动装置;棘爪 DEV deviation 误差;偏航

DFDR digital flight data recorder DG directional方向的gyro回转仪罗盘 DH decision决定height高度,海拔

DIFF differential 依差别而定的;鉴别性的 DIR direct 指挥

DISC disconnect 使分离,分开,断开

DISCH discharge 释放,排出(液体,气体等) DISCONT discontinued 停止,中断 DISENG disengage 解开,解除;使脱离 DISP dispatch 派遣

DIST distance 距离;路程 DK deck (船的) 舱面,甲板

DME distance measuring equipment 测距仪 DMU data management unit 资料管理单元 DN down 向下

DPCT differential protection current transＦＯＲＭer【电】变压器 DR door 门

DSCRT IO discrete分离I/O error DSPLY display 显示 DSPY display 显示 E EADI electronic attitude director indicator 数位化姿态指示器 ECON economy 节约, 经济

ECS environmental control system 环控系统

EDP engine driven pump, engine hydraulic pump 引擎液压泵 EEC electronic engine control 引擎电控

EFDARS expanded flight data acquisition and reporting system EFI electronic flight instruments 电子化飞行仪表 EFIS electronic flight instrument system EGT exhaust gas temperature 排气尾温

EHSI electronic horizontal situation indicator 水平状况方位指示器 EICAS engine indicating and crew alerting system引擎状况警告指示 ELEC electrical 与电有关的,电气科学的 ELEV elevation 高度;海拔 EMER emergency 紧急情况

ENG engage啮合,接合, engine ENT entrance入口,门口, entry ENTMT entertainment 娱乐

EPC external power contactor 外电源接触器 EPR engine preure ratio 推力比

EPRL engine preure ratio limit 推力比范围 EQUIP equipment 装备 ERR error 错误

ESS eential 必需品

EVAC evacuation 撤空;排泄物 EVBC engine vane and bleed control 引擎放气控制 EXH exhaust 排出;排气 EXT external 外部的

EXTIN extinguish, extinguished 灭火器 EXTING extinguishing 熄灭 F F/D flight director 飞行引向器 F/F fuel flow 燃油流量 F/O first officer FAA Federal美国联邦 Aviation Administration行政机构 FCC flight control computer 飞行控制电脑

FCEU flight controls electronic unit 飞控电子单元 FCU fuel control unit 燃油控制器 FDR feeder 餵食器

FIM Fault Isolation Manual 故障隔离手册 FL flow 流量

FL/CH flight level change FLD field(飞机)场,;(广阔的一大片)地(知识)领域;专业;(活动)范畴 FLT flight (飞机的)班次 FLUOR fluorescent 发亮的

FMC flight management computer 飞行管理电脑 FMS flight management system 飞行管理系统 FREQ frequency 频率

FRM Fault Reporting Manual 错误报告手册 FSEU flap/slat electronic unit 副翼电控单元 FT feet复, foot单 英尺 FWD forward 前面的 G G/S glide slope, ground slope 下滑坡度 GA go-around 重飞

GB generator breaker 发电机断电器

GCB generator circuit breaker 发电机断路器 GCR generator control relay 发电机控制继电器 GCU generator control unit 发电机控制组件 GEN generator 发电机

GHR ground handling relay 地面操作继电器 GND ground 地面 GP group 团体

GPWS ground proximity warning system 地面接近警告 GR gear 齿轮;传动装置; (飞机的)起落架 GRD ground 地面

GS ground speed 地速

GSSR ground service select relay 地面勤务选择继电器 GSTR ground service transfer relay 地面勤务转换继电器 GW gro总量weight 总重 H H/L high/low 高/低 HDG heading 【航】航向 HF high frequency 高频 HORIZ horizontal 水平HP high preure 高压

HSI horizontal situation indicator 水平状况方位指示器 HTR heater 加热器 HYD hydraulic 液压的 I IAS indicated airspeed 指示空速 IDENT identification 识别;鉴定 IDG integrated drive generator IGN ignition 点火,发火;点火开关

ILLUM illuminate, illuminated 被照明的;发光的 ILS instrument landing system 仪降 IMP imperial (度量衡)英制的 IN in, input 输入 INBD inboard 内侧的

INC incorporated结合的, increase增大, increment增加 INCR increase 增加 IND indicator 指示器 INFC interface 分界面

INFLT inflight 飞行过程中的 INHIB inhibit 抑制 禁止

INIT initiation 入门;开始实施 INOP inoperative 不活动的 INPH interphone 对讲机 INST instrument 仪器;仪表 INT interphone 对讲机 INTLK interlock 连结 INTPH interphone 对讲机

INTMT intermittent 时断时续的;周期性的 IP intermediate preure 中间的压力

IRS inertial reference system 惯性参考系统 IRU inertial惯性的reference unit 惯性参考组件 ISLN isolation 隔离 ISOL isolation 隔离

IVSI instantaneous瞬时的vertical speed indicator 垂直速度指示器 M MCDP maintenance control display panel 修护控制显示面板 MCP mode control panel 模式控制面板 MCU modular模件concept观念 unit MDA minimum decision altitude 最小判断高度 MIC microphone 扩音器;麦克风

MIN minimum 最小量,最小数;最低限度 MM Maintenance Manual 修护手册 MOD module 组件;单元

MON monitor 监视器;监控器 MOT motion (机械的)装置,运转 MPU magnetic pickup 检波器 MSG meage 信息

MSTR master 主要的;总的

MSU mode selector unit 模式选择组件 MTG miles to go 英里

MU management unit 管理组件 MUX multiplexer 多路传输 N N/A not applicable 可应用的 NAC nacelle 引擎舱;气球吊篮 NAV navigation 导航

NCD no computed data 无法计算资料

NEG negative 否定的; 反面的【电】负的,阴极的【数】负的 NEUT neutral 中立的

NLG nose landing gear 鼻轮起落架 NO.number 数,数字

NORM normal 正常的,正规的,标准的 NRM normal 正常的,正规的,标准的

NVMEM RD non-volatile memory read error 故障读错误排除才能消除 NVMEM WR non-volatile memory write error 故障写错误排除才能消除 O 02 oxygen 氧气 OBS observer 观察员 OK okay 对,很好地 OPR operate 运转 OPT option 选择权 OPRN operation 操作 OUT output 输出

OUTBD outboard 外部的

OVHD overhead 头顶(船舱)顶板 OVHT overheat 过热

OVRD override 权力高於;优先於; 越过 OXY oxygen 氧气 P P/RST pre to reset 压下清除故障

P/S pitot皮托管(流速计);皮托静压管/static 静态的 PA paenger addre 客舱广播 PASS paenger 旅客

PCA power control actuator 电控致动器 PCT percentage 百分比

PDI pictorial deviation indicator 偏航图表示 PES paenger entertainment娱乐system PLA power level angle PLT pilot (飞机等的)驾驶员,飞行员

PMG permananet magnet generator 永磁发电机 PNEU pneumatic 气动

PNL panel 【电】配电盘;控电板 POR point of regulation调节

POS position, positive (电池的)阳极【数】正的 PPOS present当前的 出席的 position PRESS preure 压力

PRG FLOW program flow error 流量程序错误 PRIM primary 首要的,主要的 PROC procedure 程序;手续;步骤

PROG MEM ROM memory error 唯读记忆体错误 PROJ projector 投射器

PROT protection 保护,防护; PS pitot static 皮托管(流速计);皮托静压管

PSI pounds per square inch 每平方寸上的压力磅数 PSS paenger service system 客服系统 PSU paenger service unit 客服组件 PTT push to talk 发话

PTU power transfer unit 动力传送组件 PWR power 动力 Q QAD quick-attach-detach 快拆卸;使分离 QTS quarts 一夸脱的容器 QTY quantity 数量 R R/T rate of turn 回转速率

R/W MEM RAM memory error 随机存取记忆体错误 R right 右边的

RA radio altimeter, radio altitude 雷达高度 RAT ram air turbine 冲压驱动 RCVR reciever 接受

RDMI radio distance magnetic indicator 磁场距离指示 REC recorder 记录器

RECIRC recirculate 再循环 REF reference 参考

REFRIG refrigeration 冷冻 REG regulator 调节器 REL release 释放,解放

REP representative 代表性的,典型的 REQ required 必须的 RES reserve 储备

RESSTART power interrupt restart error 动力中断重新起动错误 REV reverse 倒退,使倒转 RF right front 右前 RH right hand 右手 RLSE release 释放,解放 RLY relay 【电】继电器 RLY/SW relay/switch RMI radio magnetic indicator 磁场方位指示

RMT OUT high-speed ARINC output error 汇流排输出错误 RN right nose ROT rotation 旋转

RPM revolutions循环,(一)周期回转,旋转per minute RPTG reporting 报导 RR right rear 後方 RST reset 重新设定

RTO rejected丢弃takeoff起飞 RUD rudder (飞机的)方向舵 RW right wing 右翼

RWY runway (机场的)跑道 S SAM stabilizer trim/elevator asymmetry limit module尾舵飞操组件 SAT static air temperature 静压空气温度 SEC second 第二次

SEI standby engine indicator 紧急直接引擎指示 SEL select 选择

SELCAL selective calling 飞航呼叫 SERV service 服务

SG signal generator 信号产生器 SLCTD selected 选择 SLCTR selector 选择器 SOV shut off valve 关断阀 SP speed 速度 SPD speed 速度

SPD BK speed brake 速煞 SQL squelch 压扁

SSB single side band STA station 驻地(各种机构的)站,所, STAB stabilizer 安定装置;安定翼 STBY standby 备用

STS system status 系统状况 SURF surface 表面 SW switch 开关

SWITCH IN switch input error SYNC synchronous 同步的 SYS system 系统 SYST system 系统 T T/R thrust reverser 反推力器 T.O.takeoff 起飞

TACH tachometer 转速计 TAI thermal热的anti-ice TAS true airspeed 真空速

TAT total air temperature 总温

TCC turbine case cooling 涡轮(机)冷却 TE trailing edge 後缘(飞机的)襟翼,阻力板 TEMP temperature 温度,气温 TFR transfer 转换 THR thrust 推力

THROT throttle 节流阀 THRSH threshold 门槛 THRT thrust 推力

THRU through 穿过;通过 遍及,在...各处;在...之间,在...之中 TIE bus tie系,拴,捆,扎 汇流排联系 TLA thrust lever angle 推力杆角度

TMC thrust management computer 推力管理电脑 TMS thrust management system 推力管理系统 TMSP thrust mode select panel 推力选择面板 TO TO/takeoff 起飞

TOL tolerance 【机】公差,容限

TR transＦＯＲＭer【电】变压器 rectifier【电】整流器 TRP thrust rating panel 推力等级面板 TUNE tuner (频率))调整器;【无】调谐器 TURB turbine 涡轮(机) TURBL turbulent, turbulence【气】湍流;(气体等的)紊流 U UBR utility有多种用途的;通用的bus relay 汇流排继电器 UPR upper USB upper side band 【机】传送带 (无线电的)波段,频带 V V/NAV vertical navigation 【经】纵向联合的 导航 V/S vertical speed 垂直的速率 VERT vertical 垂直的

VERT SPD vertical speed 垂直的速率 VFY verify 验证 VG vertical gyro 垂直回转仪罗盘

VHF very high frequency 超高频无线电 VIB vibration 震动

VLD valid 合法的;有效的 VLV valve 【机】阀,活门 VOL volume 量;额

VOLT voltage 电压;伏特数

VOR VHF omni range receiver 方向无线识标 VOX voice 声音

VTR video tape reproducer (录音,录影的)播放装置 W W/D wiring线路diagram图解 W/W wheel well 轮舱 WARN warning 警告;警报 WG wing 机翼

WHL wheel 轮子 ; 变换方向 WHLS wheels 车轮 WPT waypoint 位子点

WSHLD windshield 挡风玻璃 WX weather 天气

WXR weather 气象雷达 X X-CH cro channel 交叉频道 X-CHAN cro channel 交叉频道 XDCR transducer 变换器 XMISSION transmiion 传送 XMIT transmit 发射

XMTR transmitter 发射机 XPNDR transponder 询答机 Y Y/D yaw damper 阻尼器

Air Gloary（航空缩略语）

A AACAir Accident Investigation Branch of the Department of the Environment, Transport and the Regions.

aaeabove aerodrome level.Also see aae.

ab initioan aircraft is abeam a point when that point is at ninety degrees left or right of the aircraft"s track, but term usually used to indicate a general position rather than a specific point.

a/cAircraft Communication Adreing and Reporting System.

ACArea Control Centre.And ACZ Aerodrome Control Zone.See ATZ below.

ACMSaerodrome control radar.

accelerate-stop distanceaerodrome. ADAdvisory aispaceair data computer.

ADELTautomatic direction finder/finding.Radio compa which gives a relative bearing to the non-directional radio beacon to which it is tuned.

ADIAir Defence Identification Zone.An area of airspace extending upwards from the surface, usually along a national boundary, within which identification of all aircraft is required in the interests of national security.

ADRAutomatic Dependence Surveillance.

ADTAerodromes Environmental Federation.

AEWUK-published flight guide and navigational chart system.

aerodrome/airport elevationair force base, usually U.S.or Canadian.

AFCSAutopilot and flight director system.

AFIAerodrome Flight InＦＯＲＭation Service, providing inＦＯＲＭation to, but not control of, aircraft using that aerodrome.

AFIS(O)- Aerodrome Flight InＦＯＲＭation Service (Officer)

AFSAeronautical Fixed Serviceauto flight system.

AFTNair-to-ground operator

A/Gabove ground level.

AHRSarea of intense aerial activity, usually military.

AICAirborne integrated data system.

AIPＦＯＲＭ for reporting position and Met conditions in flight.

AirmetAeronautical InＦＯＲＭation Service.CAA unit based at London-Heathrow Airport, providing flight-planning services and inＦＯＲＭation for pilots.Publishes AICs, above.

AIZalert phase of search-and-rescue procedure.

altaerodrome specified on a flight plan to which an aircraft chooses to divert if a landing at its intended destination is not poible (for reasons of poor weather, for example).

altimeter settingAmplitude modulation. AMEabove mean sea level (sometimes asl in USA).

anhedralAir Navigation Order.Statutory legal instrument defining the laws of air navigation, pilot licensing etc, in the UK.Other aviation legislation includes the Rules of the Air and Air Traffic regulations and the Air Navigation (General) Regulations

AoAAirport Operators" Aociation. AOCairport of entry (usually in USA).

AOGAircraft Owners and Pilots Aociation.

A/PAirframe and Powerplant Mechanic (USA).

APAAircraft Proximity Hazards Aement Panel, which investigates near-mi reports filed by air traffic controllers (see also JAWG).

APPauxiliary power unit.Large transport aircraft and some busine jets have an APU, typically a small turbine, to provide power for engine-starting and for running systems when on the ground, obviating the need for external power or ground power unit, GPU.

ARBaircraft radio control of aerodrome lighting.

ArestiAeronautical Radio Incorporated.A non-profit corporation owned by airlines to set standards for airline avionics and provide communications services.

ARPblades can flap, drag and feather.

ARVaccelerate-stop distance available.

ASIaltimeter setting region, a geographical area for which the lowest value of QNH is forecast hourly and relayed by air traffic control centres.Also airport surveillance radar and air-sea rescue.

ASTOVLactual time of arrival.Also Air Training Aociation.

ATCair traffic control aistant

ATC(C)air traffic control officer..

ATISAir Transport Pilot"s Licence, needed to act as pilot-in- command of a commercial air transport aircraft exceeding 20,000 kg all-up weight.

ATOair traffic service.Also ATSU, ATS Unit.

ATSORAair traffic control unit.

ATZall-up weight, a term for the total loaded weight of an aircraft, made up of empty weight plus useful load; maximum auw is the maximum allowable weight, including fuel and payload, specified in an aircraft"s Certificate of Airworthine.Sometimes referred to (in USA especially) as gro weight and maximum gro weight respectively.Also MTWA, maximum total weight authorised; BOW Basic operating weight, the weight of an aircraft with all equipment, lubricants, fuel and operating crew, but without payload; MLW, maximum landing weight, above which fuel must be burned off or jettisoned before landing or there may be risk of structural damage.

avgasaviation turbine fuel (kerosene).Used by turboprops and jets.

AWRairway. B BABritish Airports Authority.

BAeABritish Airline Pilots Aociation.

base legBusine Aircraft Users Aociation.

BCARbreak cloud procedure.

BCPLmanually-controlled mode for CS propellers on turboprop aircraft enabling reverse pitch to be selected for braking or to aid ground manoeuvring.

BFRBritish Gliding Aociation.

BHABbrake horsepower.

BHPAHot compreed air taken from turbine engines.

BMAALoose-leaf Euopean airfields manual for VFR operations.

BRGBritish Women Pilots Aociation. C CCivil Aviation Authority.

CAD/CAMCivil Aviation Authority Flying Unit, based at Stansted Airport, which perＦＯＲＭs such tasks as navaid checking and calibration and also examines candidates for instrument ratings and commercial pilot"s licences.

CANPCivil Air Publication.InＦＯＲＭation booklets iued by the CAA, e.g.CAP 53 The Private Pilot Licence.

CAScasualty evacuation.

CATpronounced CAV-okay (ceiling and visibility OK), visibility at least ten kilometres, with no cloud below 5,000 feet, with no Cbs, precipitation, thunderstorms, shallow fog or low drifting snow.

CAVUCombined Cadet Force

CDIcontrol display unit.

ceilingchief flying instructor (certified flying instructor in USA).

CFScentre of gravity

CHa thorough pre-flight inspectionConfidential Human Factors Incident Reporting system, whereby profeional pilots and ATC staff may report in confidence incidents arising from human errors for analysis by the CHIRP Charitable Trust at Farnborough.

CHTpattern around which aircraft fly when arriving at an airfield, usually rectangular in UK but not necearily elsewhere.The circuit (known as the pattern in USA) is aligned with the active runway and may be either left- or right-handed.Dead side is the opposite side of the circuit pattern in operation from which arriving aircraft join for landing.See also final(s).

C/Lcolloquialism referring to an airport closed to air traffic by bad weather

cleanauthorization from air traffic control to proceed as requested or instructed.Used for ground and air manoeuvring, thus "cleared for take-off", "cleared flight-planned route", "cleared to descend" etc.

CloudsCertificate of Airworthine iued by the CAA indicating that an aircraft meets the Authority"s airworthine standards.Cs of A are iued to individual aircraft, and also to generic aircraft types (Type Certification in the USA) when the first example of a type is registered.Cs of A on individual aircraft are granted in several categories, e.g.Private, Public Transport, Aerial Work etc.and much be renewed at intervals.Permits to Fly are authorisations granted to specialist aircraft and are accordingly restricted in the kinds of operation for which they may be used.

C of Ecentre of gravity.The point on an aircraft through which the entire aircraft"s weight may be aumed to act (i.e.around which the aircraft, if suspended, would balance).C of G limits are the most forward and rearward positions of the C of G permitted for safe operation.An aircraft loaded outside its C of G limits can be difficult or impoible to control.

C of Pcommunication(s)

CPLcounter-rotating.Usually in general aviation referring to twin-engined aircraft with "handed" engines whose propellers turn in opposite directions to eliminate propeller torque effect.

CRMportion of an aerodrome circuit flown before downwind

CRPcathode ray tube (like a television).Used in flight deck displays of new-generation airliners, busine aircraft and military jets instead of conventional instruments.See also EFIS,. critical altitudethe engine on a multi-engined aircraft whose failure would most seriously effect perＦＯＲＭance or handling of the aircraft, through asymmetric effects or lo of power to systems such as hydraulics.

CRS coursecall sign. CSControl Area.An area of controlled airspace extending upwards from specified limit agl. CTRcockpit voice recorder.A tape recorder installed on the flight decks of commercial transport aircraft and helicopters and some busine aeroplanes to record crew conversation, RT transmiions and cockpit background noises (e.g.trim-wheel operation, flap motor running) in case required for incident or accident investigation.

CWcolour weather radar.

CZcompreor zone inspection. D DADanger Area Activity InＦＯＲＭation Service.

DACSDigital air data computer (DADSDistre & Diversion Cells at Air Traffic Control Centres.RAF units which provide a 24-hour listening watch on VHF and UHF emergency frequencies and can locate and aist pilots who are lost or in emergency situations.

dBa unit of sound

DCdirect

dead sidedescent and landing with engine(s) shut down and propeller(s) stopped.

Deccadigital electronic engine control

density altitudeengine"s potential power deliberately limited, lengthening likely life.

DETRESFAdirection-finding.A DF bearing can be provided by airfields or other facilities such as D & D cells (above) having suitable direction-finding equipment to locate an aircraft.

DGDirection Général à l"Aviation Civile

DHUK Defence Helicopter Flying School at RAF Shawbury

DIDIsloping up from root to tip.Opposite: anhedral.

DIN(S)distance-measuring equipment.A combination of ground and airborne equipment which gives a continuous slant range distance-from-station readout by measuring time-lapse of a signal transmitted by the aircraft to the station and responded back.DMEs can also provide groundspeed and time-to-station readouts by differentiation.

DopplerDepartment of Transport.

downwinddew point

DRwhen referring to aircraft hire charges means "without fuel", as opposed to wet, with fuel.

DZExperimental Aircraft Aociation, the American homebuilders" organisation.

EADIequivalent airspeed.

EATEuropean Busine Aircraft Aociation.

ECACEuropean Council of General Aviation Support.

ECUemergency distance.

EETelectronic flash approach light system.

EFATOelectronic flight instrument system, in which multi- function CRT displays replace traditional instruments for providing flight, navigation and aircraft systems inＦＯＲＭation, ＦＯＲＭing a so-called "gla cockpit".Now common in commercial transports, corporate aircraft and helicopters, military fighters and some GA piston singles and twins.

EGTelectronic horizontal situation indicator.CRT-based HSI ＦＯＲＭing part of an EFIS.

EICASengine in-flight monitoring system ELTweight of the basic aeroplane including all fixed equipment, plus unusable fuel, oil, hydraulic and other fluids.

encoding altimeterestimated off-blocks time.

EPeffective perceived noise decibel.Unit of measurement of aircraft noise levels.

ERequivalent shaft horsepower.

ETAestimated time of departure

ETEextended-range twin operations, usually long over-water flights by airliners.

ETPSorganisation, headquartered in The Netherlands, comprising Belgium, France, Germany, Ireland, Luxembourg, Netherlands and UK for coordinating en route air traffic control in Europe. F FAAFleet Air Arm, of UK"s Royal Navy.

FADECfinal approach fix, the point at which a published instrument approach begins.

FAIFederal Aviation Regulations (USA).

FARAfly by light i.e.control via optical fibres

FBOfly-by-wire.Aircraft control systems in which pilots" control inputs are transmitted to control surfaces electronically or via fibre optics rather than by mechanical linkage.Also see FBL.

FCLflight control system.

fcstflight data recorder, popularly known as a "black box" (actually painted bright orange), by which various parameters of an aircraft"s flight perＦＯＲＭance are recorded for analysis in the event of an incident or accident.

featherto set the angle of CS or VP propeller edge-on to the airflow to minimise drag and rotation following engine failure on multi-engined aircraft.Also applies to motor gliders which have feathering propellers to enhance engine-off soaring perＦＯＲＭance.

final(s)Flight InＦＯＲＭation Centre.

FIRFlight InＦＯＲＭation Service, providing a variety of services and inＦＯＲＭation (but not control) to air traffic in the two FIRs above.

FJflight level, a level of constant atmospheric preure shown by an altimeter set to a standard 1013.2 millibars, expreed in rounds hundreds of feet, thus FL330 is 33,000 feet.

flagthrottling or other restriction of engine power ouput (usually in turboprops and turboshafts) at sea level to enable it to give constant predictable power at higher operating altitudes.

flameoutflashing.

flicker effectforward-looking infra-red.

FLMfoot-launched powered aircraft, e.g.powered parachutes.

FMflight management computer/system

FMGCflight management system.

FMUforeign object damage, usually to turbine engines through ingestion of runway debris etc.

FPLfeet per minute, a measure of an aircraft"s rate of climb or descent.Similarly m/s or mps, metres per second.

FSSflying training organisation.

FTSfeet per minute G gg-induced lo of consciousne.Pilot blackouts caused by exceive g or by too-rapid onset of g-forces.Experienced mostly by pilots of high-perＦＯＲＭance military jets and competition aerobatic aircraft, has led to fatal crashes.

GAGeneral Aviation Awarene Campaign.

GAFORgallons, imperial or USA.One imp gall = 1.201 U.S.gall.

GAMAGeneral Aviation Manufacturers & Traders Aociation, UK.

GAPANGeneral Aviation Safety Council

GASILground-controlled approach.A landing approach in which a ground controller gives verbal guidance in azimuth and elevation to a pilot using precision approach radar (PAR) to monitor the aircraft"s approach path.Still used by the military, but defunct in civil aviation.

GFTRuian equivalent of GPS/Navstar satellite navigation system.

gloveground

GNSSVHF direction-finding (France)

GPgallons per hour, an expreion of fuel consumption or fuel flow (FF) in either imperial or U.S.gallons.Usually lb/hr for turbine-powered aircraft.

GPSground proximity warning system.A radar-based flight- deck system to give pilots audible warning by means of horns, hooters, taped or synthetic voices of terrain close beneath an aircraft"s flight path.

GRADUglafibre-reinforced plastic; also CFRP, carbon-fibre reinforced plastic.Composite materials seeing increasing use in entire airframes for GA aircraft (e.g.Beech Starship) and for components for helicopters, airliners and military aircraft.

GSgroundspeed.The speed an aircraft makes over the ground, a product of its airspeed and wind speed. H H24Historic Aircraft Aociation.

HAI1:500,000 scale ICAO aeronautical chart.

Hdgsuffix used in RT callsigns to indicate that the aircraft is a large transport, alerting controllers and following aircraft to the poibility of wake turbulence .

Hectopascal (hPa)helicopter emergency medical services.

Hertzhigh-frequency band, used for long-range radio communications in the 3-30 MHz range.

Hghigh intensity approach lighting.

HIGEhigh intensity radiated (electromagnetic) fields.

HIRLhigh intensity strobe light.

holding patternhands on cyclic and collectivehover out of ground effect.Also see HIGE.

hot-and-highhands on throttle and stick.Ergonomic cockpit design technology, originally developed for military combat aircraft, enabling a pilot to fly the aircraft and manage all navigation, weapons and other systems from control column/throttle lever hand grips.

HOTCCsee HOTAS above.

hpHighlands Restricted Area

hrshorizontal situation display.

HSIhead-up display.A method of projecting instrument readouts or data which enables a pilot to see them while looking through the aircraft"s windscreen.Mostly used on military aircraft, but now in service on some commercial airliners.

HzInternational Council of Aircraft Owners and Pilots Aociations

IASInternational Air Transport Aociation.

i/cInternational Civil Aviation Organisation. IFidentification friend or foe.

IFRin ground effect.Helicopter perＦＯＲＭance with an earth surface immediately below.Also OGE, out of ground effect.Helicopters can hover at a greater maximum altitude IGE (above a mountain slope, for example) than they can in free air, OGE.

IGSinstrument landing system.The approach aid employing two radio beams to provide pilots with vertical and horizontal guidance during the landing approach.The localiser provides azimuth guidance, while the glide-slope defines the correct vertical descent profile.Marker beacons and high intensity runways lights are also part of the ILS. IMCuncertainty phase of search-and-rescue procedure. INSintermittent or fluctuating, term used in Met reports.

IRInspect and repair as neceary

IREInstrument Rating Test ISAinter-turbine temperature.Also TGT, turbine gas temperature TIT, turbine inlet temperature.

IWRJoint Aviation Authority.

JARJoint Airmi Working Group.A civilian/military committee which reviews and reports on all airmies which occur in UK airspace.

JEFTSU.S.-developed navigational/approach chart system with worldwide coverage, similar to British Aerad system.

JPATSkilogram(s) kHzknots indicated airspeed.

kmone nautical mile per hour (never one knot per hour), the standard unit of aviation speed measurement.One knot equals 1.1515 mph; one nautical mile equals 6,080 feet.

kV- kilovolt kWLower Airspace Radar Advisory service, available to all aircraft flying in uncontrolled UK airspace from 3,000 feet amsl to FL95.See also MMARS, RAS and RIS, below.

LAMSlatitude.

LATCCpound(s)

lbfliquid crystal display

lcztlift /drag ratio, a measurement of the efficiency of a wing aerofoil section

LDAlight emitting diode

LFlow-intensity two-colour approach system.

LLTVlocalizer ((USA).

LOCmedium-frequency non-directional radio beacon used as an aid to establishing yourself on final approach during an instrument landing procedure..

LOFTLocator outer marker

lon(g)low-frequency hyperbolic radio long-range navigation system which measures time difference between reception of synchronised signals transmitted from ground transmitters.Loran-C, operates in the 100-110 kHz frequency band with an operating range of 600-1,500 nm independent of line-of-sight, and is becoming very popular among GA aircraft operators in the USA. M M or magratio of true airspeed to the speed of sound.Mach 1 is the speed of sound at sea level, ISA, approximately 1,100 feet per second or 760 mph.

MAPpart of an instrument landing system using 75 MHz transmitters emitting fan-shaped or elliptical signal patterns vertically upwards, defining specific points along the glideslope.The outer marker OM is situated at or near the glideslope intercept altitude of the ILS localiser, the middle marker (MM) defines a point on the glideslope at or near decision height (DH).Markers provide aural and visual indications on a cockpit marker beacon receiver.

MATZinternational radio distre call (from the French, m"aidez -- help me).It signifies imminent danger to life requiring immediate aistance.

mbMulti-crew co-operation

MCUminimum descent altitude.The lowest altitude, in feet amsl, to which descent is authorised on final approach during a non-precision instrument landing (i.e.where no glideslope guidance is given) without visual reference to the runway.

MDHmilitary emergency diversion airfield.

medevacmeteorology, weather.

METARmedium frequency.Radio waves with frequencies in the 300- 3,000 kHz range.

MFAmulti-function display.An EFIS CRT offering selectable displays of weather radar, navigation maps, checklists and data other than primary flight inＦＯＲＭation.

MHMegahertz, the frequency of radio carrier waves measured in millions of cycles per second.

minimumsmicrowave landing system.A microwave-based instrument approach system intended to replace ILS in the 1990s and claimed to offer a number of advantages such as the ability to fly segmented and curved precision approaches.

MLWmillimetre"s

MMARSmilitary operations area.

MoDmodification to an aircraft or equipment

mogasman-powered aircraft

mphmajor periodic inspection

MSAmean sea level

MTBFmilitary terminal control area.

MTOWmaximum total weight authorised.

N

NASNational Air Traffic Services.A division of the CAA providing UK air traffic control. Navnavigation aid.

Nav/ComNational Busine Aircraft Aociation, USA.

NDBnavigation flight test

nmnap of earth.Low flying, usually by the military, using contour-flying techniques and terrain-masking to avoid being seen.

NORDOno significant change, term used on Met reports.

NOTAMno tail rotor.A system patented by McDonnell Douglas for maintaining directional control of helicopters without use of an anti-torque tail rotor.

NPRMNational Transportation Safety Board.U.S.equivalent of UK"s AAIB.

nvgNational Vocational Qualification.A Government-recognised qualification, the cost of training for which can be set against tax. O OASCoutside air temperature.The temperature of the air outside an aircraft measured by a probe with a cockpit gauge readout.OAT affects the measurement of indicated airspeed and its value is needed to calculate true airspeed.At high speeds kinetic heating demands correction to the indicated OAT for true outside air temperature.

OATSobstruction.

OBSobstacle clearance height.The lowest height above the elevation of the runway threshold or above aerodrome elevation used to establish compliance with obstacle clearance criteria in an instrument approach.Also OCA, obstacle clearance altitude, and OCL, obstacle clearance limit.

OCUOne engine inoperative

OEMOut of ground effect

oktahigh accuracy, very-low frequency (VLF) long-range navigation system of the hyperbolic type, covering the entire earth down to the surface from eight ground-based transmitters.Used principally by airliners, military aircraft and intercontinental busine aircraft.

opson request.

o/tOperational Training Unit.

P

P1co-pilot

Panprecision approach path indicator, a system of coloured lights installed at the approach end of a runway which provides visual guidance to the correct glidepath.A succeor to VASI, below.

PARpaengers.

PEDAuthorisation granted to aircraft such as homebuilds, vintage aeroplanes, warbirds and some simple "claic" light aircraft which are not required to meet the standards demanded for a full C of A, and are accordingly restricted in the kinds of operation for which they may be used.

PFPopular Flying Aociation, the UK homebuilt and antique aircraft organisation.

PFDpowered hang-glider

PICPilots InＦＯＲＭation Guide

pinch-hitterPipeline Inspection Notification System.

PIOflight-plan.

PMSPilot not flying.The "non-handling" pilot in multi-crew operation

PNR(number of) persons on board.Also SOB, souls on board.

POCpilot"s operating handbook, an aircraft"s "owner"s manual".

Pooley"spowered paraglider.

PPLPrivate Pilot"s Licence for helicopters,

PPL(SLMG)prior permiion only.Certain airfields or events require advance notification (by telephone, for example) of your intended arrival.

PROBmanoeuvre which reverses the direction of an aircraft"s flight during an instrument approach procedure to enable it to intercept the final approach course.

PPRpounds per square inch, a measurement of preure.

PTTspecial temporary airways created for flights by certain members of the royal family, notified by NOTAM. Q QFIQualified helicopter instructor.

Quadrantal Rule1:250,000 scale ICAO aeronautical chart

Q-codeRules of the Air and Air Traffic Services section of the AIP

rabbit lightsRoyal Aeronautical Society

RAFmaximum permiible weight of an aircraft, which exceeds maximum take-off weight by an allowance for fuel burned during engine-start and taxi.

RAPIDrectified airspeed.Indicated airspeed corrected for instrument position error. RAS (2)add-on qualification to a pilot"s licence, e.g.Night Rating, Multi-engine Rating, Instrument Rating, Seaplane Rating etc.Individual Type Ratings are neceary to fly aircraft over 12,500 pounds MTWA.

RCLrelative bearing indicator, displaying inＦＯＲＭation from the ADF.

RDORadar InＦＯＲＭation Service.Provided to notify pilots of conflicting traffic outside regulated airspace, but offering no avoiding action.

RMIremark(s).

RMUarea navigation.A system of radio navigation which permits direct point-to-point off-airways navigation by means of an on-board computer creating phantom VOR/DME transmitters termed waypoints.

RONinner end of wing where it meets fuselage.

rpmradio telephony.Voice communications, as opposed to WT, wirele telegraphy

RTFrunway visual range, a horizontal measurement of visibility along a runway.

rwyreceiver. S SACPsearch-and-rescue.Also Sarsat, SAR satellite.

SASsenior air traffic control officer

satcomsService Bulletin.Advisory notices iued by aircraft, engine and equipment manufacturers alerting owners and engineers to faults or problems requiring preventitive or remedial maintenance or modification.Often termed "mandatory", but do not have the legal force of Airworthine Directives (which see).

SBACSafety Data Analysis Unit of the CAA.

"second pilot"(U.S.) VFR navigation chart, equivalent to our 1:500,000 or "half-million".

Semi-circularselective calling.A high-frequency system enabling air traffic control to alert a particular aircraft, by means of flashing light or aural signal in the cockpit, for receipt of a meage without the crew having to maintain a listening watch.Used on long-haul over-ocean airline routes and by intercontinental bizjets.

sfcradio call made from aircraft calling later than final position, or on final approach from a shortened circuit, or at 2nm from threshold on a straight-in approach.

shpstandard instrument departure.A standard IFR departure route enabling air traffic controllers to iue abbreviated clearances and thus speed the flow of traffic.

SIGMETsea level.

SLAself-launching motor glider

SMOHsurface movement radar.

SNOWTAMsouls on board, the number of persons on board an aircraft.Also POB.

socked-instandard operating procedure.

specific rangeStudent Pilot"s Licence.No longer iued in the UK, where a CAA medical certificate serves as an SPL.

squawksunrise.

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