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）--Pressure 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

stewardess, hostess 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

passenger 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

passenger cabin 客舱

propeller 螺旋桨

pressurized 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 class, tourist class 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 class 头等

night service 夜航

airsick 晕机

direct flight, straight flight 直飞

landing 着陆

to rock, to toss, 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 Addressing 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 progress 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 address 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 compressor 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 pressure 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 depressurize 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 pressure ratio 推力比

EPRL engine pressure ratio limit 推力比范围

EQUIP equipment 装备

ERR error 错误

ESS essential 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 gross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 pressure 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 pressure 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 message 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 press 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 passenger address 客舱广播

PASS passenger 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 passenger 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 pressure 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 passenger service system 客服系统

PSU passenger 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 cross channel 交叉频道

X-CHAN cross channel 交叉频道

XDCR transducer 变换器

XMISSION transmission 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 Glossary（航空缩略语）

A

AAC - Army Air Corps

AAIB - Air Accident Investigation Branch of the Department of the Environment, Transport and the Regions.

aae - above aerodrome elevation. Also see aal.

aal - above aerodrome level. Also see aae.

ab initio - elementary flying training, literally "from the beginning",.

abm abeam - an 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/c - aircraft.

ACARS - Aircraft Communication Adressing and Reporting System.

AC - alternating current.

ACC - Area Control Centre. And ACZ Aerodrome Control Zone. See ATZ below.

ACMS - aircraft condition monitoring system.

ACR - aerodrome control radar.

accelerate-stop distance - calculated distance required for an aircraft to accelerate to V1 (which see), reject take-off and brake safely to a halt.

A/D - aerodrome.

AD - Airworthiness Directive, issued by airworthiness authorities to correct a defect found in an aircraft type after certification. Compliance is mandatory and may be required immediately and before further flight, within a specified period of time or number of flying hours, or when next due for routine maintenance.

ADA - Advisory aispace - Advisory Area or Advisory Route.

ADC - air data computer.

ADELT - automatically deployable emergency locator transmitter.

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

ADI - attitude deviation indicator. An advanced type of artificial horizon, part of a flight director system providing pitch and roll inＦＯＲＭation and commands.

ADIZ - Air 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.

ADR - Accident Data Recorder.

ADS - Automatic Dependence Surveillance.

ADT - Approved Departure Time.

AEF - Aerodromes Environmental Federation.

AEW - Airborne early warning

Aerad - UK-published flight guide and navigational chart system.

aerodrome/airport elevation - highest point of an aerodrome"s usable runway(s) expressed in feet above mean sea level (amsl).

AFB - air force base, usually U.S. or Canadian.

AFCS - automatic flight control system, an advanced autopilot. Also IFCS, integrated flight control system.

AFDS - Autopilot and flight director system.

AFI - assistant flying instructor. Also AFIC, assistant flying instructor course, FIC, flying instructor course.

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

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

AFS - Aerodrome Fire Service.

AFS - Aeronautical Fixed Service - telephone/teleprinter network, includes AFTN.

AFS - auto flight system.

AFTN - Aeronautical Fixed Telecommunications Network. A ground- based teleprinter network transmitting flight plans, weather inＦＯＲＭation etc.

AGO - air-to-ground operator

A/G - air-to-ground.

agl - above ground level.

AHRS - attitude-heading reference system. A sensor deriving aircraft attitude and heading inＦＯＲＭation from gyros and accelerometers.

AIAA - area of intense aerial activity, usually military.

AIC - Aeronautical InＦＯＲＭation Circular. Bulletins issued at intervals by the CAA relating to matters of airworthiness, administration, operating procedures, safety etc. AICs are colour-coded according to subject, e.g. safety circulars are pink, thus "Pink 12" issued in December 1990.

AIDS - Airborne integrated data system.

AIP - Aeronautical InＦＯＲＭation Publication. The UK Air Pilot, statutory bible of aeronautical inＦＯＲＭation published by the CAA.

Airep - ＦＯＲＭ for reporting position and Met conditions in flight.

Airmet - CAA"s telephone aviation weather service, covering Southern, Northern and Scottish regions of the UK. Also Metdial and Metplan, privately-operated aviation weather services. For full details see Pilot, February 1991.

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

AIZ - Aerodrome InＦＯＲＭation Zone. See ATZ below.

ALERFA - alert phase of search-and-rescue procedure.

alt - altitude. Height above sea level.

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

altimeter setting - barometric pressure reading in millibars, hectopascals or (in USA) inches of mercury (Hg) used to set a pressure altimeter"s sub-scale to QFE or QNH .

AM - Amplitude modulation.

AME - authorized medical examiner. A doctor approved by the CAA (or foreign licensing authority) to conduct examinations for the issue or renewal of aircrew medical certificates.

amsl - above mean sea level (sometimes asl in USA).

anhedral - sloping down from root to tip. Opposite: dihedral.

ANO - Air 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

AoA - angle of attack. Also alpha, thus "high alpha", high angle of attack.

AOA - Airport Operators" Association.

AOC - Air Operator"s Certificate, issued by the CAA and required by aircraft operators flying scheduled or charter public transport flights, including cargo, air-taxi and pleasure-flying work. Also Air Officer Commanding in RAF parlance.

AoE - airport of entry (usually in USA).

AOG - aircraft on ground, a term used to denote urgency when requesting spares or service from suppliers or manufacturers, meaning that the aircraft cannot fly again until the parts have been supplied.

AOPA - Aircraft Owners and Pilots Association.

A/P - airport or autopilot.

A & P - Airframe and Powerplant Mechanic (USA).

APA - Aerodromes Protection Agency, the federation of associations for the advancement of British general aviation facilities.

APHAZ - Aircraft Proximity Hazards Assessment Panel, which investigates near-miss reports filed by air traffic controllers (see also JAWG).

APP - Approach (control).

APU - auxiliary power unit. Large transport aircraft and some business 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.

ARB - Airworthiness Review Board.

ARCAL - aircraft radio control of aerodrome lighting.

Aresti - key shorthand notation system devised by Spaniard José L Aresti whereby aerobatic display routines or competition sequences can be drawn up on paper like a musical score. Now largely superseded by the simpler FAI Aerobatic Catalogue system.

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

ARP - aerodrome reference point.

articulated rotor - blades can flap, drag and feather.

ARV - air recreational vehicle.

ASDA - accelerate-stop distance available.

ASI - airspeed indicator, a flight instrument which measures the speed of an aircraft through the air.

ASR - altimeter 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.

ASTOVL - advanced short take-off and vertical landing.

ATA - actual time of arrival. Also Air Training Association.

ATC - air traffic control.

ATCA - air traffic control assistant

ATC(C) - air traffic control centre;

ATCO - air traffic control officer..

ATIS - automatic terminal inＦＯＲＭation service, a continuous recorded broadcast of routine non-control airport inＦＯＲＭation, usually at large airports.

ATPL - Air Transport Pilot"s Licence, needed to act as pilot-in- command of a