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aviation terms [复制链接]

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71#
发表于 2008-12-30 03:25:32 |只看该作者
TRANSCEIVER Type Rating $ \, T+ o0 P0 _6 { TRANSCEIVERS A device that receives and transmits ' e6 \* k% N2 D FTRANSIENT-FREE SWITCH A switch with a wash-out filter so that the output contains no transients (steps) at switch time ( }" C% M2 S& E- i) e' J" X0 \3 r TRANSMIT To radiate RF energy " H4 X9 l3 \1 k [4 R: QTRANSMITTER A device that transmits ( F" }; W% i6 d& G6 J7 h7 F/ Y _ TRANSMITTER (TX) The hand-held radio controller. This is the unit that sends out the commands that you input. / E9 `/ |8 F; V2 x7 J' _2 yTRANSPONDER Transmitter-Responder 9 n6 Y: ^% u$ y; N8 I, h3 JTRANSPONDER (TX) A receiver/transmitter which will generate a reply signal upon proper interrogation; the interrogation and reply being on different frequencies. ( R4 J; y/ ~* Q9 A TRE Type Rating Examiner # y, H1 z. ?2 ~TREND MONITORING Continuous computerized observation of turbine engine performance. Used to detect early sings of wear. 1 R6 d2 c' y0 M0 E7 Z, L4 p6 m TRI Type Rating Instructor : P% g" J) s% R& e7 YTRICYCLE GEAR The landing gear arrangement where the airplane has main gear and a nose gear. ' {' I5 e7 q3 ^$ BTRIM To adjust an aircraft`s trim tabs and thereby relieve the pressure required on the controls to keep the nose in the desired position. $ X3 n( v0 o, a% {( yTRIM TAB A secondary control surface, usually mounted to primary control surface such as aileron, elevator, rudder, or stabilizer, that controls the position o... 0 ]& y' M7 n) A% f: E$ W; O& O TRK Track t; e6 Y! ^6 b& ?& eTRN Terrain Referenced Navigation; " g! N9 L) h# B% f5 g9 N2 [, Z TRN-INS TRN with INS ' u& W- n5 k( {( w; ]% z) s TRTO Type Rating Training Organization 5 H) V: ?) M. o8 m# e7 F TRUE Best available estimate, such as true airspeed; referenced to true north, such as true heading; ! R3 \) q- F& |5 D$ OTRUE AIRSPEED the airspeed of an aircraft relative to undisturbed air. True airspeed is equal to equivalent airspeed multiplied by (0/)1/2. * K/ b' ^- u7 [5 p! F5 pTRUE AIRSPEED (TAS) The airspeed of an aircraft relative to undisturbed air. 7 S, P7 w# t7 @9 uTRUE BEARING Symbols: B sub T; Typical Units: rad, deg; 2 Y( @) w1 L2 Q0 i TRUE HEADING Heading of the aircraft relative to true north; Symbols: psi sub T; Typical Units: rad, deg; 2 p1 u2 Y6 D$ d& q! |, s TRUE TRACK Ground track angle; Symbols: T sub T; Typical Units: rad, deg; 4 b& Q' Z i; k# S# W- _ TSC Total Time Since CORE * [6 F: B/ L' j" { TSMO Time since major overhaul ! _7 I% ^0 Y9 L TSN Time Since New (also TTSN) # f9 a. s( H: O. L/ P TSO Technical Standard Order P8 Z4 w0 V% n3 X2 b' aTT Total Time Airframe " g7 n) o" ?# U/ G" i TTG, TTS OR TTW Time to go, time to station, time to waypoint. + n$ T2 {- i8 L2 S TUBA a jamming device for Freya radar operating in the 70-200 MHz range l Y* N2 T$ U* G9 F& Z* W' ITUNE To set the operating frequency or channel for a device 1 S$ h9 |- p5 E- r% Z4 FTURBO PROP Is said of an airplane powered by a type of jet engine, the turbo prop, equipped with a turbine-driven propeller. Z, L5 U; I2 r TURBOJET AIRCRAFT An aircraft having a jet engine in which the energy of the jet operates a turbine which in turn operates the air compressor. - O: e' |0 H, R& W& r0 j2 z9 f; ]TURBOPROP AIRCRAFT An aircraft having a jet engine in which the energy of the jet operates a turbine which drives the propeller. 4 R4 S/ v& w7 g+ ~6 p4 X TURBULENCE MODE Flight control system mode in which a "softer" response to gust upsets is programmed.

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72#
发表于 2008-12-30 03:25:39 |只看该作者
TVOR very high frequency terminal omni range station. ! G- T9 ^. v2 t3 A+ \TWR Tower (Control Tower) + I+ b& n: q! e" i( J5 ]' [; g TYPE (1) As used with respect to the certification, ratings, privileges, and limitations of airmen, means a specific make and basic model of aircraft, incl... & i( `7 @7 n- I" D9 g2 z- x' T9 ] U Airspace Euro control project Class U (unknown traffic) ( ^3 \+ }8 D" A U/S unserviceable # c+ l3 L0 u6 ^6 S' Q( j0 M& U U/V ADF UHF/VHF Automatic Direction Finding 2 a# y2 ~5 O# W# v* U7 J UAT Universal Access Transceiver ( ~8 u$ d. Q# v2 p8 J+ U5 t0 PUAV Unmanned (or Uninhabited) Aeronautical (or Aerial) Vehicle 1 [) A' T: T5 Z* C+ m& nUFN Until Further Notice / O" i# ?0 X* Q' y# [ UFO Unidentified Flying Object % Y2 t k" e- E; ~& \ UHF Ultra High Frequencies (300 MHz-30 GHz) $ F) x+ Q( g! _, A. j" H UHF/VHF AUTOMATIC DIRECTIONFINDING (U/V ADF) An Automatic Direction Finder that determines relative bearing to a transmitter to which it is tuned, in either the UHF band or VHF band; / ^- _( ~9 L( R4 W: f3 N UL Ultra light, Ultra-l©ger motoris© ) L8 B8 y- C3 l7 v) K2 Y p7 I) | ULM Ultra light, Ultra-l©ger motoris© 1 U6 B& A" r6 \3 m ULTRALIGHT VEHICLE An aeronautical vehicle operated for sport or recreational purposes which does not require FAA registration, an airworthiness certificate, nor pilot c... ( j- ]6 |6 y3 b) ] UMAS Unmanaged Air Space (Euro control Definition) , c- R# v; Q& K6 oUNDER CAMBER This means that the lower surface of the wing has a hollow curve when observed from front to back. A thin wing with a high camber will be under camber... 3 C! t% [/ ~# F4 M& T3 N8 JUNDERCARRIAGE STRUT A part of an airplane`s structure, designed to resist distortion, which supports the landing gear. N" ?6 h8 A `( R' CUNIT FUNCTIONS A collection of functions used as standard test cases in control systems engineering; The primary unit functions of interest in avionics are the unit ... * e, r9 o3 ~( w* c" mUNIT IMPULSE A function used as a standard test case in control systems engineering; a spike of "area" one at time t = 0; Synonyms: impulse; See Also: unit functio... 3 p6 B. G- S- b/ DUNIT LESS No units, such as ratios; a quantity with standard units of 1; a quantity with primary units of 1; Synonyms: dimensionless; 6 x, N( L+ n( `6 uUNIT RAMP A function used as a standard test case in control systems engineering; a line of slope 1 starting at zero at time t = 0; Synonyms: ramp; See Also: un... # n; `2 h8 ~, B9 ?' s' J UNIT STEP A function used as a standard test case in control systems engineering; a step from zero to one at time t = 0; Synonyms: step; See Also: unit function... ) m7 X+ x- y2 PUNITED STATES in a geographical sense, means (1) the States, the District of Columbia, Puerto Rico, and the possessions, including the territorial waters, and (2) t... 5 a0 w9 Q1 q' k" Y1 S3 \* V+ Z6 Z7 e- gUNITED STATES AIR CARRIER a citizen of the United States who undertakes directly by lease, or other arrangement, to engage in air transportation. # d/ [2 d3 r6 u" J/ A( X UNITS A standard quantity, such as ft or mi; Synonyms: dimension; ) @. o/ H! x/ Q4 p+ \+ w6 { UNIVERSAL TRANSVERSE MERCATOR(UTM) A system of fixed earth coordinates, sometimes used instead of latitude and longitude, accurate relative to others close by, such as ground troops; ! O( ^. q) {. a r9 _UPDATE A process by which position is reset with a known better position; updates occur at the data source level or at the physical device level, depending u... 6 \& g- z) v9 }) u3 ` UPKEEP Codename for Barnes Wallis` bouncing bomb used in the Dambusters` raid * c5 Z) t. J( a3 j+ G2 |URB User Relations Bureau (CFMU) 8 q D6 M2 F9 e& N, MUSABLE FUEL (LBS) Usable fuel (gallons) x 6.7 lbs/gallon ; Y3 u p& l. v6 y" V! G5 u$ p USAF US Air Force # P7 Y# S' t; R$ PUSEFUL LOAD Maximum Ramp Weight - (minus) Basic Operating Weight ) W2 d7 K( g+ j# V% _) U* p USG (AL) US-Gallon (3.78 Liter) / N) W+ y$ B& t: u0 [8 u+ B+ O UTC Universal Coordinated Time. % l* d# Y. H) y) ~! z0 k7 ZUTM Universal Transverse Mercator , u( p& ?7 ?: Y1 N" T( h! VV Universal Time Coordinated

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73#
发表于 2008-12-30 03:25:47 |只看该作者
V (X) Speed for best angle of climb. & }) S4 b9 F; K9 n V (Y) Speed for best rate of climb. - K) V2 r2 t+ w5 v* m" qV1 speed for best angle of climb. 8 Z* e2 E7 f7 n4 L- LVA Maneuvering Speed (max. structural speed allowed for full control deflection) ( s# Q x0 c% X+ a# f- a9 `: ] VAC Volts alternating current. & W9 S+ X6 \0 X" I" w6 X, M" ZVAL Visual Approach and Landing (Chart) / y7 \! m ^2 f0 C1 W VAR Variation / H, n e6 O( D$ O0 m: nVASI Visual Approach Slope Indicator * R: Z; E b6 q* r$ S- _VAT Value Added Tax 3 f( o" s( w/ U kVB design speed for maximum gust intensity. ( i$ g7 M+ `1 f7 } VC design cruising speed. 2 f# @( L+ r O& \% ? W# g3 S3 ?8 xVD Max. Dive Speed (for certification only) 5 d! E8 G0 @) f' m VDB VHF Data Broadcast 2 v/ C) V! q9 o$ N( [VDC Volts direct current. 8 f2 v' @6 `5 E) R0 s* ^8 v VDF demonstrated flight diving speed. " L- ]! ~6 A+ l' Z0 j! e VDL VHF Data Link (-n = type n) ) N# Z9 f" p( | VEF the speed at which the critical engine is assumed to fail during takeoff. 3 t! K4 O5 X+ s& LVEHICLE/PEDESTRIAN DEVIATION(VPD) An entry or movement on an airport movement area by a vehicle operator or pedestrian that has not been authorized by air traffic control (includes air... ' c4 u1 O! p8 c5 W+ G' u3 ~6 Y VELOCITY Rate of change of location, either scalar or vector, often with subscripts such as ENU or XYZ to denote the coordinate frame; time derivative of posit... F& c b, x/ M& N0 v VELOCITY EAST Aircraft velocity in true east direction; Symbols: V sub E; Typical Units: kt, ft/s; Dimensions: Length / Time; & m4 a% K% {2 Y. W0 w( y7 ?VELOCITY ERROR SCALE FACTOR(KVSF) A guidance control law parameter, generated by the longitudinal guidance modes; - B+ {3 i8 t8 w7 kVELOCITY NORTH Aircraft velocity in true north direction; Symbols: V sub N; Typical Units: kt, ft/s; Dimensions: Length / Time; * p3 l* I! K0 n% a$ N$ q" T7 G5 g VENTRAL FIN A small vertical surface on the bottom of the aft fuselage. Usually a long, slim triangle that is narrow at the front, and widens toward the rear. It ... , ^2 X* v4 U- sVERT SPD Vertical speed hold # x ^* ]8 P3 ?- b: A5 S VERTICAL Reference to earth radial, for example, vertical velocity is velocity along earth radial; See Also: East-North-Vertical; 0 r5 v1 x# `9 \+ ~& xVERTICAL ACCELERATION Aircraft acceleration in earth vertical direction; Symbols: A sub V; Typical Units: ft/s-squared, g; Dimensions: Length / Time-squared; 9 x: A( b A9 p* Q5 V. `. ^& G* iVERTICAL CUE A cue to control altitude; See Also: yoke cue, collective cue; ! U I; w6 E) C/ Q' { VERTICAL GUIDANCE Calculations for the vertical axis, rather than the longitudinal axis. The control law vertical axis input data are: Desired Altitude, Altitude Integr... 7 D- f. A! Z- w( W7 ?+ a VERTICAL SPEED HOLD (VERT SPD) A basic guidance mode, providing vertical guidance to maintain an operator selected vertical speed; 4 v8 @2 i$ |/ \' h8 T! C4 r2 q F; _" X VERTICAL SPEED INDICATOR (VSI) An onboard instrument which gauges rate of climb or descent, in feet per minute. 4 U4 ?: l; ?2 s8 M. k- T7 k VERTICAL VELOCITY Aircraft velocity in earth vertical direction; Symbols: V sub V; Typical Units: ft/s; Dimensions: Length / Time; & {; E1 a" [5 G VF design flap speed. / b$ l" q* G2 y5 W% u/ f, u1 q VFE Max. Flaps Extended Speed " k4 \4 J) r% j, f8 Y( UVFR Visual Flight Rules ("good" weather operations rules) 3 K. L( ~. x+ v7 h2 a4 E VFR OVER-THE-TOP with respect to the operation of aircraft, means the operation of an aircraft over-the-top under VFR when it is not being operated on an IFR flight pl... 0 N$ S% [; F/ X2 D0 ^# o VH maximum speed in level flight with maximum continuous power. ( v) h h) [4 h I) dVHF Very High Frequency radio equipment. ) l8 |; b, ~- z VHF OMNI RANGE (VOR) Equipment that determines bearing to a radio station with a VOR transmitter; VOR transmitters usually contain ILS transmitters in addition to VOR; A b... 1 t" k1 M7 }0 S! e. _, P! z* s1 F VILLAGE INN A gun laying radar installed in the rear-turret of some Lancaster bombers allowing blind-firing on an "illuminated" target

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74#
发表于 2008-12-30 03:26:00 |只看该作者
frequency at which the outp... ' _' L5 X9 a, t" e1 R7 eCVFR Controlled VFR (still existing in some countries) ) s' y; f% i' v" {. e CVR Cockpit Voice Recorder 6 s M7 K1 z a5 q# CCYCLES Pertaining to turbine engines. Cycle begins with starting, continues through full-power, and ends with shutdown. / D+ {' C1 x3 Y8 z8 y \ CYCLIC See: longitudinal cyclic, lateral cyclic; 3 d4 n2 B! `9 [3 [; J D Airspace ICAO Class D " s5 K% D! s( y3 u% dD.R. DEAD RECKONING; system of navigation. VIS Very High Frequency (30-300 MHz) ; ]3 e# M# H0 W3 TVISUAL FLIGHT RULE (VFR) Rules that govern the procedures for conducting flight under visual conditions (VMC). The term is also used in the United States to indicate weather c... 6 h0 W) [$ u& o VISUAL METEOROLOGICAL CONDITIONS(VMC) Meteorological conditions expressed in terms of visibility, distance from clouds, and ceiling equal to or better than specified minima. / S1 T" ~6 y5 u* w8 {: h VJAR-FCL Verordnung JAR-FCL (JAR-FCL transformed to Swiss Law) 5 H, {$ j8 n8 ~/ W3 _, { f VLA Very Light Aircraft (Aircraft certification category) 8 M8 H8 |* @+ N1 B4 iVLE Max. Landing Gear Extended Speed , E. N+ G8 C7 W- f( [) m: V% }) Z W; UVLF Very Low Frequency radio equipment $ j9 O" ^3 J! aVLO Max. Landing Gear Operation Speed 2 v4 ^8 r' y! w VLOF lift-off speed. . c% T# E, N& K J5 E8 ?4 {VMC Visual Meteo Conditions ("good" weather for VFR or IFR) j2 O9 p4 n( O# o; Y! c$ [* q% bVMO maximum operating limit speed. 5 W; `# F: `( r3 _. V" j VMU minimum unstick speed. ; ?# b m7 n" b. J3 ~# k6 ^ VNAV Vertical navigation, or the capability to compute pitch-axis maneuvers and altitude-related points in space. + l' c. |5 V6 sVNE Never Exceed Speed ; `9 H0 c: U) \3 R" l0 {9 tVNO Max. Structural Cruising Speed * b; `- V" {4 A- C- ]9 b$ dVOR A ground-based electronic navigation aid transmitting very high frequency navigation signals, 360 degrees in azimuth, oriented from magnetic north. Us... : ^4 G+ g- i P& h! ^ VOR/DME Vertical Navigation (GLS) 8 C# P' p3 ?7 a9 Q1 V6 y( zVORTAC VHF Omni range; 0 [" p- O8 b0 {9 ?- N) x! \VR Rotation Speed ' I# u% p$ D8 z8 B8 o4 @& L VS the stalling speed or the minimum steady flight speed at which the airplane is controllable. % r5 L/ j, \* s) N9 [3 a) JVS0 Stalling Speed Landing Config [3 i3 Z1 v NVS1 Stalling Speed in a specified Config. 9 P7 P/ U/ z1 E0 J5 t VSSE Minimum Safe Single Engine Speed + e2 q; u5 u, k5 I: yVTOSS takeoff safety speed for Category A rotorcraft. 2 g# d5 q6 w" E# s) A0 |VX Best Angle of Climb Speed 1 D0 X! `: B% {) E VXSE Best Angle of Climb Speed, 1 engine inoperative a" M9 ?% H( u6 M" g- u- Y$ M9 `) E VY Best Rate of Climb Speed 0 C+ B: [4 m0 U+ Q' D( B, L! T VYSE Best Rate of Climb Speed, 1 engine inoperative + F" c5 P+ I. p1 r x* rWA (IAOPA) World Assembly % t1 E/ P7 F: e* D/ b0 |6 WWAAS GNSS wide-area augmentation system. " _. U- z) ?$ D/ `WANGANUI Colored flares dropped on H2S to sky mark a target , }5 F: I% L- K0 K9 zWARNING A signal which alerts the operator to a dangerous condition requiring immediate action (from MIL-STD-1472D); an annunciator that is the most critical ... 3 N4 c2 o [5 B WARNING, CAUTION, ADVISORY (WCA) See: warning, caution, advisory, annunciator, alert; 2 o% n; F- a( j7 S3 B4 Y* ^0 s5 h WASH-OUT FILTER A filter to smooth a transition due to change of input source, such as when changing modes; See Also: transient-free switch; ! B* q# M" y6 }6 hWASHOUT The twist in an airfoil which causes less angle of attack at the tips than the root. For airplanes, this increases stability of the aircraft at slow s... - u( D; g6 C# XWASSERMANN German long range radar with a range of up to 190 Km. ; _$ o, {# B8 v6 r% ~WAYPOINT A predetermined geographical position used for route/instrument approach definition, or progress reporting purposes, that is defined relative to a VOR... H0 H* k8 R F* Q6 e WAYPOINT (WYPT) A point on the ground, predefined as a point of interest for the flight; a basic guidance mode, providing lateral guidance to a waypoint, either by co... 0 [$ G5 m: s% T t" L$ aWAYPOINT APPROACH To approach a waypoint : N/ u1 C- w& V$ g; w WCA Warning, Caution, Advisory

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75#
发表于 2008-12-30 03:26:08 |只看该作者
WEATHERVANE This describes the tendency to point into the wind. Stabilizers on a aircraft result in its desire to weathervane. ! q9 N& {* W8 V+ ^% q9 O& o WEIGHT ON WHEELS (WOW) Indication of whether the aircraft has weight on its wheels, meaning airborne or on the ground; weight on wheels can be detected by a sensor on the wh... 3 x9 `' Y6 K* z" n; w" P# {WET WINGS Method for containing fuel in wings without using rubber fuel cells. + U' V: W F3 c: F/ {5 LWGS-84 Wide Area Augmentation System # s+ o; X0 `) IWGS72 World Geodetic Survey 1972 ) d& W6 |1 W2 {5 d" ` WGS84 World Geodetic Survey 1984 t4 O0 I! Z# ^- w8 {& p9 J1 D+ [ WHEEL A flight control operated by turning with hands in fixed-wing aircraft, primarily to control roll (heading) via the ailerons; wheel is connected to yo... 0 z" P2 H' X* y# J, t WHEEL CUE A lateral flight director cue for fixed-wing aircraft, primarily to control heading, by changing roll; Compare: lateral cyclic cue; Symbols: Gamma sub... # E2 e* _* W, b/ f9 z6 jWHEEL PANTS The large fairings used to streamline the wheels of an aircraft that has non-retracting, or "fixed" landing gear (so-called because it`s "fixed" in pl... ( w' g2 ?6 Q8 Z% OWHITE BOMBS Nickname for propaganda leaflets. 5 D5 m; g2 x4 Z* W/ pWILDE SAU WILD BOAR. German ground- controlled night fighter system using twin engined aircraft l, N5 d5 x7 ?WIMPY RAF nickname for the Vickers Wellington bomber. The name came from J. Wellington Wimpy, a character in the Popeye cartoon in the Daily Mirror ) W7 d0 f2 S/ t2 U% B, _7 V. ~ WIMS System Wide Information Management 0 t1 S3 M: M2 X, o4 E7 j$ x4 M6 d: \ WIND BEARING Symbols: B sub W; Typical Units: rad, deg; 5 h* B: X5 i, d# @! v; o WIND SPEED Symbols: V sub W; Typical Units: kt, ft/s; Dimensions: Length / Time; ) `3 A3 ^1 O5 ] WINDOW Strips of silver paper dropped by British aircraft to confuse the German ground radars 5 `- z/ o0 h4 qWINDSOCK This can be used to describe a number of devices, all of which give a visual clue to the direction and speed of wind in a given location. $ O9 |5 t& L4 y1 a1 L* c y0 i. IWING The main lifting surface of an airplane. ( z2 V: T5 h$ PWING FENCE Term preferred by Airbus and McDonnell-Douglas aircraft manufacturers for the vertical structures at the outside ends of the wings of some of their je... ! J0 ` |8 E0 l' b) {: y: b* d. j WING LOADING This is the amount of weight per square foot that has to be overcome to provide lift. It is normally expressed in ounces per square foot. This specifi... 7 `) T$ L. F. O WING ROOT The centerline of the wing, where the left and right wing panels are joined. : u! d% M4 z& `WINGLET A small vertical surface at the tips of the wings. They help direct the turbulent airflow that all wings have at the tips. They makes the wings more e... " c- s& W, H; ?% d4 p- @# b. f& a" x: k" _WIP Work in Progress $ m; {' g' n% l- K# kWMO World Meteorological Organization ) i& c$ C; ]* b. h9 I- k) N WORLD GEODETIC SURVEY 1972 (WGS72) A standard model for computing earth data; + U# q: o7 \% e/ D1 h/ Q& f/ u WORLD GEODETIC SURVEY 1984 (WGS84) A standard model for computing earth data; * d$ H' k1 |/ ^( O" f WOW Weight on wheels $ M* U D% H% C- u4 V/ j* f# e# tWP Waypoint 8 w- f) g& t# R: w) K; x- X: N WPT Waypoint & C6 [/ ~; c. Y4 A0 t+ k7 ?% E WRAP TEST A test to send data to a device having it sent back unaltered 4 `* x: K$ v7 x" |* A+ K( x2 e' N0 AWWII Waypoint # W7 |9 d3 M3 O o" w WX Weather ' }8 {3 Q3 m- [, a WYPT Waypoint : U: L, n2 ~; U1 L& K4 AWœRZBURG German short (11 mile) range gun laying radar capable of giving both height and range. 7 H& I# o- u4 u) F# h1 B* dX-BAND Frequency range in which most general aviation weather radars operate. " k) K2 ~6 y4 Q* ` `X-BEAMS German radio beams used to guide their bombers to the target 4 V- F- z+ o7 P/ R. O( {- W" f! G XPDR Transponder. Radar-enhancement/data link box for ATC purposes. 5 v! ?2 k' O% E! s B, P XPOND Transponder 3 `5 S: P1 G: O4 o: i8 O! }( kXTK Cross track; cross track error. 2 g( ]- e; M5 b: j$ J8 n- ^XTKD Cross track deviation % S4 S: y0 m3 L- b' U& l* |! I XTKR Cross track deviation rate : a+ w' {1 J5 [1 g XYZ A standard aircraft coordinate frame and sign convention, where nose, right wing, and down are positive X, Y, and Z, respectively; often used as subsc... 9 ?9 h- k& h- L! M Y-BEAMS German radio beams used to guide their bombers to the target 4 ~* s5 ^4 }; _, v/ YY-SERVICE British organization for the interception and reporting of German wireless "chatter" for intelligence purposes. & D6 s2 {2 v( j8 E& B9 _ R* v5 [ Y2K Year-2000 (computer date problem) NOTE: k=decimal kilo=1000 (1-1000); thus Y2k=2000 K=binary kilo=1024 (0-1023); thus Y2K=2047 2 Z& ?0 b2 [3 n YAW The nose-left and nose-right movement of the airplane. This is controlled by the rudder. ; ]$ V) H# Z- g0 T/ B8 Q8 P, ~5 ]YAW AXIS The airplane axis controlled by the rudder. Yaw is illustrated by hanging the airplane level by a wire located at the center of gravity. Left or right...

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76#
发表于 2008-12-30 03:26:16 |只看该作者
YAW RATE The rate of movement about the vertical axis of a aircraft. 2 Y2 C- D8 C; N1 H. p" a YOKE CUE A vertical flight director cue for fixed-wing aircraft, primarily to control altitude, by changing pitch; Compare: collective cue; Symbols: Gamma sub ... 5 m! r: q$ h2 U7 }0 h Z Infra-red identification equipment @3 ` F1 z7 H* c( w7 M# y7 G Z TRANSFORM A mathematical relationship to model a discrete function in the complex frequency domain (Z-plane); Z transforms are commonly used by systems engineer... % i4 v% h- ]& X% w+ L- l: q Z-BEND A type of linkage point using a bend in the control rod which resemble a Z. + G! R/ ? [ ?, ?7 P/ P, V Z-PLANE Discrete complex frequency plane; Z-plane is used in control systems engineering in the design of control laws See Also: Z transform; $ i/ d9 u( L# w( l9 F0 C ZAHME SAU TAME BOAR. German "free lance" night fighter system using single engined aircraft 7 @3 p: A* K# b2 T3 G ZERST–RER GESHWADER Luftwaffe Destroyer Wings, composed of Bf110 Heavy fighters , [5 q5 ]+ Z) \9 s! |3 S ZOC Zone of confusion 1 n3 l4 ], r7 [' F' ^; E$ g6 K5 S3 u) xZONE OF CONFUSION (ZOC) A circular area centered at a TACAN station in which bearing is extremely noisy; 9 y2 e! M7 @/ L1 C" P ZULU Greenwich Mean Time, also known as Universal Coordinated Time.

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