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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 " Q0 |0 G1 \: Q0 Q2 n1 x& A TRANSCEIVERS A device that receives and transmits 9 z, F! f( j% X9 F3 b$ wTRANSIENT-FREE SWITCH A switch with a wash-out filter so that the output contains no transients (steps) at switch time / }" c) y' {4 v) STRANSMIT To radiate RF energy ! r8 o+ \- p M) [3 c5 R8 U4 x' T TRANSMITTER A device that transmits & A! |- z& r; [. b8 o1 M- X4 Y TRANSMITTER (TX) The hand-held radio controller. This is the unit that sends out the commands that you input. ) T7 s4 N, ^( m6 c8 E% O7 d& `TRANSPONDER Transmitter-Responder & `) K: }& Q C6 y TRANSPONDER (TX) A receiver/transmitter which will generate a reply signal upon proper interrogation; the interrogation and reply being on different frequencies. ) h! ?" l. t2 s$ ?; H; H5 V. {TRE Type Rating Examiner . k7 g5 C) E# VTREND MONITORING Continuous computerized observation of turbine engine performance. Used to detect early sings of wear. 9 Q4 j8 ^9 N2 Z OTRI Type Rating Instructor # n& f% s$ D2 x- A( P, l1 ~. D+ sTRICYCLE GEAR The landing gear arrangement where the airplane has main gear and a nose gear. 7 _3 T! |9 C$ \1 e) j$ i6 \ TRIM To adjust an aircraft`s trim tabs and thereby relieve the pressure required on the controls to keep the nose in the desired position. # E# k* }$ C2 y- h- D% Q TRIM TAB A secondary control surface, usually mounted to primary control surface such as aileron, elevator, rudder, or stabilizer, that controls the position o... - T1 t8 B+ W, r& U0 E vTRK Track - @& F& v+ W, E3 Z- Z" R TRN Terrain Referenced Navigation; 0 S' W& w0 _6 U- ?3 {; gTRN-INS TRN with INS ) D: i, D, m5 M' J9 ^) CTRTO Type Rating Training Organization . y, X ^) S; X2 p ~0 r TRUE Best available estimate, such as true airspeed; referenced to true north, such as true heading; 9 k. u, i6 H4 K& O TRUE AIRSPEED the airspeed of an aircraft relative to undisturbed air. True airspeed is equal to equivalent airspeed multiplied by (0/)1/2. 6 u! `$ N6 W( ^2 |TRUE AIRSPEED (TAS) The airspeed of an aircraft relative to undisturbed air. / _7 u! l6 ~/ [& ^- Y3 nTRUE BEARING Symbols: B sub T; Typical Units: rad, deg; 9 j9 e; R9 I* @: d TRUE HEADING Heading of the aircraft relative to true north; Symbols: psi sub T; Typical Units: rad, deg; 2 e5 o. `! S* @ TRUE TRACK Ground track angle; Symbols: T sub T; Typical Units: rad, deg; * B7 q8 k- @3 d6 Q+ d TSC Total Time Since CORE , R: Q" r! }# N) F" bTSMO Time since major overhaul 8 X, T$ ?6 s" Z. F, {; XTSN Time Since New (also TTSN) 0 U; _/ @4 v. B3 c/ |& F TSO Technical Standard Order ) T- X5 x# W- M% l+ qTT Total Time Airframe y1 t6 D' B7 r8 Y) I TTG, TTS OR TTW Time to go, time to station, time to waypoint. * r( G% H# m5 n5 L' j* e% t, uTUBA a jamming device for Freya radar operating in the 70-200 MHz range 9 z: f% L9 F3 y( Y: l9 fTUNE To set the operating frequency or channel for a device ) [1 w0 b& p. s. r6 g# O4 T' c TURBO PROP Is said of an airplane powered by a type of jet engine, the turbo prop, equipped with a turbine-driven propeller. 0 Y9 O% n) E1 ?2 g+ Q, a 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. . j% {' C6 V9 a8 m7 ^. E- @ TURBOPROP AIRCRAFT An aircraft having a jet engine in which the energy of the jet operates a turbine which drives the propeller. " i* I+ _8 _0 E; M1 u8 s$ G- vTURBULENCE 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. - V& x. u9 Y/ g! I [TWR Tower (Control Tower) ; x% O, f+ u5 e4 c1 P, PTYPE (1) As used with respect to the certification, ratings, privileges, and limitations of airmen, means a specific make and basic model of aircraft, incl... ( x( M1 T8 G9 ~/ R/ G8 R" R6 E( d U Airspace Euro control project Class U (unknown traffic) `) _7 P( s2 @7 mU/S unserviceable * k9 c8 ]) p0 U) a: G9 O U/V ADF UHF/VHF Automatic Direction Finding 6 e, E8 |9 u' C% F9 U8 H UAT Universal Access Transceiver 5 K! M! K' G( o. k. d' I7 ?" w. j: E UAV Unmanned (or Uninhabited) Aeronautical (or Aerial) Vehicle 3 B" s( W0 |' A UFN Until Further Notice ( G! m* L6 F1 u5 ?6 nUFO Unidentified Flying Object : z" v) q) A4 r# J" `# E& H+ k UHF Ultra High Frequencies (300 MHz-30 GHz) $ e: {; x) c4 F 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; / r D5 O7 K) d2 w UL Ultra light, Ultra-l©ger motoris© 7 D R2 }1 E/ O' I9 _( Y" t2 ~ ULM Ultra light, Ultra-l©ger motoris© 7 M0 `& a7 k: g; r6 \" {ULTRALIGHT VEHICLE An aeronautical vehicle operated for sport or recreational purposes which does not require FAA registration, an airworthiness certificate, nor pilot c... 5 D( @. V |/ t3 G* l( M+ D+ V UMAS Unmanaged Air Space (Euro control Definition) 4 b+ b# i9 s' {* a UNDER 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... 1 T( I6 v* [& B& H0 ]UNDERCARRIAGE STRUT A part of an airplane`s structure, designed to resist distortion, which supports the landing gear. 5 C; j4 H* `# K( h z' R* ` UNIT 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 ... * r) m9 N% v, ?4 i$ 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... - Q- s. R6 w0 |9 F1 h" wUNIT LESS No units, such as ratios; a quantity with standard units of 1; a quantity with primary units of 1; Synonyms: dimensionless; ) O2 d9 s% x7 u6 ]& M2 bUNIT 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... 6 M- R% N0 d* h2 @ 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... + w4 q! [: b7 m2 ~UNITED 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... 4 b1 z3 L% w5 I$ [* Y# oUNITED STATES AIR CARRIER a citizen of the United States who undertakes directly by lease, or other arrangement, to engage in air transportation. 1 [. @0 m V+ o1 d; ~# G2 T, P, PUNITS A standard quantity, such as ft or mi; Synonyms: dimension; , W1 L3 Y' Z/ m0 u7 fUNIVERSAL 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; 9 {/ z/ n: _% f) x$ [, u1 W! \+ { 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... 8 e3 n- t4 a& k; X1 Z' T: G6 S0 HUPKEEP Codename for Barnes Wallis` bouncing bomb used in the Dambusters` raid ; G d+ ?$ e+ c2 M: }! K$ r/ B URB User Relations Bureau (CFMU) " A* [' C' D/ A# GUSABLE FUEL (LBS) Usable fuel (gallons) x 6.7 lbs/gallon 8 K x) [+ v* ~0 k0 TUSAF US Air Force 5 E2 C3 ?0 B6 C9 T* e9 W' VUSEFUL LOAD Maximum Ramp Weight - (minus) Basic Operating Weight T$ h0 v" m2 Q* Q" ] USG (AL) US-Gallon (3.78 Liter) 1 s' N+ v3 a2 z* |UTC Universal Coordinated Time. $ g' m5 T% [% o# t$ MUTM Universal Transverse Mercator ) B' z+ W) j$ _9 ?! y V 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. 8 ^6 g! l$ B" d1 [4 g) C! aV (Y) Speed for best rate of climb. ' S1 k" }$ }6 b* w V1 speed for best angle of climb. r. b. i; s0 q' xVA Maneuvering Speed (max. structural speed allowed for full control deflection) , Q) c6 u: E* w+ Y VAC Volts alternating current. - e3 R0 l5 i& N. q- J VAL Visual Approach and Landing (Chart) . @" M) B1 L2 H1 J7 jVAR Variation $ Y4 Y+ C% L/ ]9 Z VASI Visual Approach Slope Indicator ' p! Y; Z: B- P6 Y- D% aVAT Value Added Tax - v0 N5 K- g5 a8 j5 z" }/ I1 T VB design speed for maximum gust intensity. 3 h$ ~( I, L& v/ V* CVC design cruising speed. 3 p' Z% ^& d; |! M1 a VD Max. Dive Speed (for certification only) ; u6 V/ u7 s. L5 Y V4 Q8 @ VDB VHF Data Broadcast ! M. x% u4 K" _ VDC Volts direct current. * b* V- A1 B& Y2 O T' i VDF demonstrated flight diving speed. $ N" B1 w$ g6 Z2 o5 pVDL VHF Data Link (-n = type n) ! T' u5 Y# e( `, L( [& b C VEF the speed at which the critical engine is assumed to fail during takeoff. % N8 H) \5 l% L% ^VEHICLE/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... , ?* ^- ]1 X( ^9 K& y7 A+ O7 {) h8 @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... J2 K% u7 _6 l# |" x! `& n* s VELOCITY EAST Aircraft velocity in true east direction; Symbols: V sub E; Typical Units: kt, ft/s; Dimensions: Length / Time; 2 }! @& K: A; V( @2 d* f VELOCITY ERROR SCALE FACTOR(KVSF) A guidance control law parameter, generated by the longitudinal guidance modes; 9 F& F [% A( C& ~1 L6 ^3 \8 e VELOCITY NORTH Aircraft velocity in true north direction; Symbols: V sub N; Typical Units: kt, ft/s; Dimensions: Length / Time; " H$ u n$ J D/ m) IVENTRAL 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 ... * N) z) q" a* X: ]- bVERT SPD Vertical speed hold 5 v$ G; [( J9 @, L VERTICAL Reference to earth radial, for example, vertical velocity is velocity along earth radial; See Also: East-North-Vertical; E/ i& s5 y7 W0 ^ VERTICAL ACCELERATION Aircraft acceleration in earth vertical direction; Symbols: A sub V; Typical Units: ft/s-squared, g; Dimensions: Length / Time-squared; ) Q* `0 h/ s4 ~( h6 f VERTICAL CUE A cue to control altitude; See Also: yoke cue, collective cue; $ }1 I% h9 V" B5 `) P& P# |0 D9 OVERTICAL GUIDANCE Calculations for the vertical axis, rather than the longitudinal axis. The control law vertical axis input data are: Desired Altitude, Altitude Integr... 7 y5 T/ a8 v7 ]' Z9 j( @& U& f& F VERTICAL SPEED HOLD (VERT SPD) A basic guidance mode, providing vertical guidance to maintain an operator selected vertical speed; y1 Q$ g6 y* v0 o+ s VERTICAL SPEED INDICATOR (VSI) An onboard instrument which gauges rate of climb or descent, in feet per minute. - S, L# R4 o0 G1 ]. k( D9 KVERTICAL VELOCITY Aircraft velocity in earth vertical direction; Symbols: V sub V; Typical Units: ft/s; Dimensions: Length / Time; - Z- V' g; ^2 K7 f; q/ L) B VF design flap speed. , G; d8 ~1 M0 |3 B% w1 S! D VFE Max. Flaps Extended Speed 3 c% X& s0 h6 {7 ~) e" q/ OVFR Visual Flight Rules ("good" weather operations rules) 6 Y& a( @9 \" N/ d9 w7 n3 LVFR 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... , ?1 W* A: F" nVH maximum speed in level flight with maximum continuous power. 7 X2 x; j* c/ h VHF Very High Frequency radio equipment. % e C1 | ?: z" j2 \- S$ n 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... " ^, E5 O" l i* K 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... , y/ J. Q5 a9 o* VCVFR Controlled VFR (still existing in some countries) 4 r; M' G' {) P% \( l: VCVR Cockpit Voice Recorder # D9 A1 l) h+ c$ b( M CYCLES Pertaining to turbine engines. Cycle begins with starting, continues through full-power, and ends with shutdown. / S$ ]" ]4 i( u2 P, b+ t CYCLIC See: longitudinal cyclic, lateral cyclic; & h1 K3 k O% I' Q% cD Airspace ICAO Class D ' f/ A' }$ ]; A3 L' kD.R. DEAD RECKONING; system of navigation. VIS Very High Frequency (30-300 MHz) 8 `" S6 ?1 ]' X* R. K+ ~VISUAL 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... 7 `9 S: b& i1 j) C7 jVISUAL METEOROLOGICAL CONDITIONS(VMC) Meteorological conditions expressed in terms of visibility, distance from clouds, and ceiling equal to or better than specified minima. 6 z# ?, }; u$ R5 }% M2 e9 k9 \ VJAR-FCL Verordnung JAR-FCL (JAR-FCL transformed to Swiss Law) 5 f# {" u6 P1 j8 w, ?5 N VLA Very Light Aircraft (Aircraft certification category) % R$ l) d2 ?) f VLE Max. Landing Gear Extended Speed / M6 c: D( L* ^2 qVLF Very Low Frequency radio equipment ; W# s ?$ a, W, S s% rVLO Max. Landing Gear Operation Speed + l2 h. F3 Q: m3 m) e VLOF lift-off speed. ' x7 H, n+ z* ?/ H4 Z VMC Visual Meteo Conditions ("good" weather for VFR or IFR) " v! [5 P- ]2 S) y' Y) j1 P6 h1 ^ VMO maximum operating limit speed. 5 r: u" _" M1 D' o q0 T6 o8 sVMU minimum unstick speed. + r5 ?" X: h2 L) vVNAV Vertical navigation, or the capability to compute pitch-axis maneuvers and altitude-related points in space. " `. j% S* K% T3 T4 H' {8 j4 R/ ` VNE Never Exceed Speed 7 y0 w3 ^ ]$ |+ B* ?% b VNO Max. Structural Cruising Speed ?% \3 m5 Q) h3 i1 a6 M2 qVOR A ground-based electronic navigation aid transmitting very high frequency navigation signals, 360 degrees in azimuth, oriented from magnetic north. Us... |; ~1 f4 b5 V$ ?1 uVOR/DME Vertical Navigation (GLS) 4 G; F/ I0 b" z; TVORTAC VHF Omni range; 8 r! m3 w4 ~4 d# S' ^* B& T VR Rotation Speed : z3 J3 p7 B" \! }' L& y" t# P VS the stalling speed or the minimum steady flight speed at which the airplane is controllable. $ F9 n6 x& k; B0 X6 W. tVS0 Stalling Speed Landing Config * a1 M u6 \# O* N- dVS1 Stalling Speed in a specified Config. : n3 ?' t4 u0 }2 y7 ], w VSSE Minimum Safe Single Engine Speed 3 s& I2 V" D4 s8 JVTOSS takeoff safety speed for Category A rotorcraft. 7 N) n5 {6 X2 T# \3 vVX Best Angle of Climb Speed ( E3 R( Z) {" p$ g7 b3 t VXSE Best Angle of Climb Speed, 1 engine inoperative 6 d$ b2 s! M5 T& M' R7 C& {/ { VY Best Rate of Climb Speed 8 I1 R# ^' T0 t5 J! w VYSE Best Rate of Climb Speed, 1 engine inoperative 8 h: j' M0 l" g; uWA (IAOPA) World Assembly * d7 ~" p' }6 W5 T" ]$ g WAAS GNSS wide-area augmentation system. . |: Z% K3 q2 L& RWANGANUI Colored flares dropped on H2S to sky mark a target 0 [" _/ }8 k: t5 PWARNING A signal which alerts the operator to a dangerous condition requiring immediate action (from MIL-STD-1472D); an annunciator that is the most critical ... 7 k E6 _6 w8 U! x* p5 fWARNING, CAUTION, ADVISORY (WCA) See: warning, caution, advisory, annunciator, alert; " J! @% [2 z' }* u5 J 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; % K6 Y# p2 u5 s1 ^9 e# gWASHOUT 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... ( G1 t" A4 ]# X7 I4 ]WASSERMANN German long range radar with a range of up to 190 Km. % K4 w2 j; t5 U0 C) T) y" ] WAYPOINT A predetermined geographical position used for route/instrument approach definition, or progress reporting purposes, that is defined relative to a VOR... 9 m, _$ ~5 I' oWAYPOINT (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... 8 X, \% D! H1 F. h C# p4 b2 G% yWAYPOINT APPROACH To approach a waypoint ( Z5 p# D) @2 | 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. # \& h/ t# ]" WWEIGHT 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... 5 h5 H' {9 g1 b WET WINGS Method for containing fuel in wings without using rubber fuel cells. . p+ p" s: n2 b9 G6 C, GWGS-84 Wide Area Augmentation System ; W+ F5 `- h$ F6 k7 _WGS72 World Geodetic Survey 1972 ( h0 Z# Y, B- m$ t6 \ ]# U WGS84 World Geodetic Survey 1984 7 z. c' g% u' N2 M: {1 ? _ 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... ) N: w, P* H' I 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... 3 B& b9 y9 O g# s0 yWHEEL 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... # |1 Z$ J; ]- H; pWHITE BOMBS Nickname for propaganda leaflets. 1 I( R& b2 Y0 R# x WILDE SAU WILD BOAR. German ground- controlled night fighter system using twin engined aircraft . {5 t. p4 A: H 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 1 O Q) j# P# ?5 M6 K( ] WIMS System Wide Information Management 7 G# h# K! C0 q R9 S WIND BEARING Symbols: B sub W; Typical Units: rad, deg; ( H. b8 P- r. H9 P- o4 ] WIND SPEED Symbols: V sub W; Typical Units: kt, ft/s; Dimensions: Length / Time; Q0 C9 }$ w* n: vWINDOW Strips of silver paper dropped by British aircraft to confuse the German ground radars # T- D! |6 _" k0 Q; s# OWINDSOCK 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. * w# ~5 I, w! t9 w WING The main lifting surface of an airplane. ! d& l9 V; a2 D* F# t& b3 UWING 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... : T, Z/ C3 a0 ]; `7 ^! K- Y5 p 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... $ b. @/ t7 v8 Y- d. l0 ~WING ROOT The centerline of the wing, where the left and right wing panels are joined. / {: r3 R" `. sWINGLET 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... 4 u7 m$ n" N% X0 _: E0 a: h2 iWIP Work in Progress & U7 E" Z1 u5 V WMO World Meteorological Organization * B; p3 p+ a3 @6 s1 U" B0 HWORLD GEODETIC SURVEY 1972 (WGS72) A standard model for computing earth data; / X3 G+ a+ {: i4 ] WORLD GEODETIC SURVEY 1984 (WGS84) A standard model for computing earth data; ; K: V4 x2 n7 s7 e! w l5 y( W' I" _WOW Weight on wheels ! Y I- p+ j& {1 S! ~ WP Waypoint / L" Y; S2 d4 s2 ~, t" `WPT Waypoint - E& N% f' `, y, q$ WWRAP TEST A test to send data to a device having it sent back unaltered + P: F2 x7 T' G0 Z7 r8 O4 g1 C3 g1 WWWII Waypoint 7 h0 m9 m% ^* l2 T1 s" VWX Weather ( @" L& _. e. q* a! z( U" W8 @WYPT Waypoint - R% p7 d1 n, Z. X/ ] WœRZBURG German short (11 mile) range gun laying radar capable of giving both height and range. + e* a/ U. s& J' M, g; @+ |X-BAND Frequency range in which most general aviation weather radars operate. ! Y V) w4 N9 d. D1 f9 i" G2 G2 dX-BEAMS German radio beams used to guide their bombers to the target k0 n: @0 ~% m( v2 f. s; \ XPDR Transponder. Radar-enhancement/data link box for ATC purposes. ) R2 d( P( z! x7 {9 [4 l XPOND Transponder 3 y C' Q) w# Y& Z7 m XTK Cross track; cross track error. 7 A# q& t! P' J5 S$ z& z) \- M XTKD Cross track deviation : E4 _6 Q3 c8 T# T XTKR Cross track deviation rate % s' P/ s) O: B3 f 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... 1 d" n, w" _8 m$ u6 R" LY-BEAMS German radio beams used to guide their bombers to the target + z5 z5 a$ e' N Y-SERVICE British organization for the interception and reporting of German wireless "chatter" for intelligence purposes. ! [( i6 ]3 L. N9 AY2K Year-2000 (computer date problem) NOTE: k=decimal kilo=1000 (1-1000); thus Y2k=2000 K=binary kilo=1024 (0-1023); thus Y2K=2047 4 w" `2 x( Z- T2 I u1 v2 | YAW The nose-left and nose-right movement of the airplane. This is controlled by the rudder. 5 ~. y8 F9 C& d) ?) M 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. ) b7 R7 C! l/ O* d! U YOKE CUE A vertical flight director cue for fixed-wing aircraft, primarily to control altitude, by changing pitch; Compare: collective cue; Symbols: Gamma sub ... 1 P9 [( W& y% x- a7 P( `6 w2 qZ Infra-red identification equipment : P+ M9 y( b6 J* O 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... ' P) _4 h4 u+ H! @/ V Z-BEND A type of linkage point using a bend in the control rod which resemble a Z. 7 d, v* l3 h0 D1 kZ-PLANE Discrete complex frequency plane; Z-plane is used in control systems engineering in the design of control laws See Also: Z transform; $ x( \/ ]. O. y* p) g IZAHME SAU TAME BOAR. German "free lance" night fighter system using single engined aircraft & F7 a* r& n7 [% ^" ^ ZERST–RER GESHWADER Luftwaffe Destroyer Wings, composed of Bf110 Heavy fighters ' J$ ^& J# y8 a, ~/ j& J1 f& c ZOC Zone of confusion 1 X* P; r- ^* n+ e: C% \( XZONE OF CONFUSION (ZOC) A circular area centered at a TACAN station in which bearing is extremely noisy; - J! ?9 R+ |3 V! P: L+ s0 F ZULU Greenwich Mean Time, also known as Universal Coordinated Time.

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