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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 4 A* p" I5 a& Y3 E9 Y, ITRANSCEIVERS A device that receives and transmits 0 ^! _: z6 X, A5 X5 YTRANSIENT-FREE SWITCH A switch with a wash-out filter so that the output contains no transients (steps) at switch time ) k5 Z$ E% c2 I3 H! wTRANSMIT To radiate RF energy # y# H9 x/ A6 Z* VTRANSMITTER A device that transmits % L3 { p5 B: `. F8 XTRANSMITTER (TX) The hand-held radio controller. This is the unit that sends out the commands that you input. ; t/ G* h( I* J5 c2 i TRANSPONDER Transmitter-Responder * A9 }! H( w! Z& P% D+ [8 d! F, @9 G% PTRANSPONDER (TX) A receiver/transmitter which will generate a reply signal upon proper interrogation; the interrogation and reply being on different frequencies. 8 r+ @8 A! c( JTRE Type Rating Examiner " s' \) D* {2 H1 h8 @ TREND MONITORING Continuous computerized observation of turbine engine performance. Used to detect early sings of wear. # w: H6 f; v& {6 NTRI Type Rating Instructor 9 J% S9 f& i4 {TRICYCLE GEAR The landing gear arrangement where the airplane has main gear and a nose gear. 0 u; x# N3 u1 u5 _0 r4 f 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. ' y5 h3 O2 x2 y) ?* u TRIM TAB A secondary control surface, usually mounted to primary control surface such as aileron, elevator, rudder, or stabilizer, that controls the position o... 4 z+ `. ]* s4 W: p TRK Track 1 u0 S, i+ b( S TRN Terrain Referenced Navigation; 0 C% `3 y4 {; Z# S) q TRN-INS TRN with INS , k- b! r, e- C' p- Z# kTRTO Type Rating Training Organization 3 c2 e) w1 k8 r% v8 wTRUE Best available estimate, such as true airspeed; referenced to true north, such as true heading; . Z7 J& y% N; H8 i" |) L7 WTRUE AIRSPEED the airspeed of an aircraft relative to undisturbed air. True airspeed is equal to equivalent airspeed multiplied by (0/)1/2. + ^ L) y# M" Z* U9 G# h, zTRUE AIRSPEED (TAS) The airspeed of an aircraft relative to undisturbed air. & J' w9 ]8 T7 _& I: z7 D: J7 NTRUE BEARING Symbols: B sub T; Typical Units: rad, deg; 7 p* O2 z. I4 b+ V TRUE HEADING Heading of the aircraft relative to true north; Symbols: psi sub T; Typical Units: rad, deg; 4 i, i2 g2 c' X4 A6 OTRUE TRACK Ground track angle; Symbols: T sub T; Typical Units: rad, deg; - O X( Y z, |- y) C2 O9 n TSC Total Time Since CORE * ^/ U. N9 k1 k7 aTSMO Time since major overhaul * R0 l$ I C+ `3 E/ P- z# q TSN Time Since New (also TTSN) ) S1 h9 e8 H* @* n3 HTSO Technical Standard Order 0 w, r: N! ?# ~: L. tTT Total Time Airframe - F5 Z) Q* B; ] TTG, TTS OR TTW Time to go, time to station, time to waypoint. / s, j+ l* g- \+ j* A; c5 s TUBA a jamming device for Freya radar operating in the 70-200 MHz range , Z" J) j I, S$ _* O$ k1 i TUNE To set the operating frequency or channel for a device 4 a4 S" h$ i9 v2 b N TURBO PROP Is said of an airplane powered by a type of jet engine, the turbo prop, equipped with a turbine-driven propeller. 7 s% y5 U0 I% ]4 p ?& M' u' L1 U9 ~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. / U. N% k U4 u2 F, |3 x- p1 m TURBOPROP AIRCRAFT An aircraft having a jet engine in which the energy of the jet operates a turbine which drives the propeller. Z' z$ a( U) R+ {: S7 b9 `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. w; g" \, [0 M# k' `) x8 oTWR Tower (Control Tower) 2 X. X) U- ?1 R! s- I% C% YTYPE (1) As used with respect to the certification, ratings, privileges, and limitations of airmen, means a specific make and basic model of aircraft, incl... # y3 g, ~+ ^! t$ c4 Q: e. D U Airspace Euro control project Class U (unknown traffic) " t3 ~$ b5 o$ N+ L U/S unserviceable 3 R2 Q2 R5 l4 e3 a/ `" k U/V ADF UHF/VHF Automatic Direction Finding " i) {5 E2 A* k- S& R- BUAT Universal Access Transceiver 6 P4 j3 T6 n5 `% `) I- |7 ^# a. N UAV Unmanned (or Uninhabited) Aeronautical (or Aerial) Vehicle 6 u+ a( F- Q4 r5 Y0 M UFN Until Further Notice ; f- l% Z9 J1 B& Q0 s UFO Unidentified Flying Object , g+ e6 F, q/ e* P UHF Ultra High Frequencies (300 MHz-30 GHz) * b* h* C- \; G7 B; z6 z3 @ 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; ! {; a0 N7 M2 ?* g/ j* d5 B" c UL Ultra light, Ultra-l©ger motoris© 8 y. ]+ V9 {4 z K7 `( ]: V, F) GULM Ultra light, Ultra-l©ger motoris© $ V5 l. y6 k) r# D( bULTRALIGHT VEHICLE An aeronautical vehicle operated for sport or recreational purposes which does not require FAA registration, an airworthiness certificate, nor pilot c... ! d: Y) t6 z" a; ?) ^ UMAS Unmanaged Air Space (Euro control Definition) 5 H: R, d/ T# W6 B" F1 N% S 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... 7 Z6 q& q4 f4 [1 b; o- UUNDERCARRIAGE STRUT A part of an airplane`s structure, designed to resist distortion, which supports the landing gear. G/ ~) B# H$ @! JUNIT 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 ... ! c& S9 M1 U* i3 u: J UNIT 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... * ~6 T, Y5 m' ~5 iUNIT LESS No units, such as ratios; a quantity with standard units of 1; a quantity with primary units of 1; Synonyms: dimensionless; 1 a$ @; L, O+ j# Q2 W I4 R UNIT 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... ! D8 {! t: D8 D. ~1 I6 wUNIT 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... 0 \+ e6 B. k2 n6 ?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... 2 y) t6 I6 v) @+ e" L$ H0 Q FUNITED STATES AIR CARRIER a citizen of the United States who undertakes directly by lease, or other arrangement, to engage in air transportation. - Q2 t( M* |: O- Y% F- ` UNITS A standard quantity, such as ft or mi; Synonyms: dimension; - j( j9 p+ {! ?- |7 H" s/ x+ |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; 6 q# o0 ^$ r. ]+ }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... ! B6 Z( M! P; y( \& L# V$ [ UPKEEP Codename for Barnes Wallis` bouncing bomb used in the Dambusters` raid S# Y& h9 R% _" |& z1 jURB User Relations Bureau (CFMU) 5 I! y# d2 D' e! J2 m; QUSABLE FUEL (LBS) Usable fuel (gallons) x 6.7 lbs/gallon 1 C- m G- W+ l; s! pUSAF US Air Force 4 b [; |" d6 ?+ sUSEFUL LOAD Maximum Ramp Weight - (minus) Basic Operating Weight 0 M% O4 f% t. u) F0 eUSG (AL) US-Gallon (3.78 Liter) 2 w8 K9 ^. E0 ] E6 o2 D* MUTC Universal Coordinated Time. / [/ ?" R+ C9 [# }5 A0 e2 |% g! mUTM Universal Transverse Mercator : J7 S) o$ ~. }6 U' W |0 E: D' S5 IV 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. . r5 R% p9 ], y- Q# d- lV (Y) Speed for best rate of climb. * E( s; ?( U1 Z1 vV1 speed for best angle of climb. / x1 n$ k" t# j3 ?& e VA Maneuvering Speed (max. structural speed allowed for full control deflection) ( J& o/ D5 O/ S- t$ S* YVAC Volts alternating current. 2 g8 T2 ~: h* w2 [) X( WVAL Visual Approach and Landing (Chart) - ~5 t( m* O. K9 E' A: Z$ w, ?VAR Variation . Z$ j) l- X4 a' D: ] VASI Visual Approach Slope Indicator ! H8 x6 q6 P8 ]4 K& T5 {VAT Value Added Tax # f3 u) m% z4 V3 ] VB design speed for maximum gust intensity. 4 |$ M3 f3 Z- k VC design cruising speed. $ s8 c U; ^( ~* g4 _ VD Max. Dive Speed (for certification only) " u- n( \' X' D0 {# A3 x. j VDB VHF Data Broadcast : K1 l; ] E3 f/ ~; `% a8 `- K' oVDC Volts direct current. 0 B: {$ V: I- c" W0 wVDF demonstrated flight diving speed. : \' v8 G( Z+ z% u1 g% c* c1 r VDL VHF Data Link (-n = type n) ) M% f1 N/ @& UVEF the speed at which the critical engine is assumed to fail during takeoff. , Z, t& w1 k1 X6 B! f 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... ' {% x ~# _7 x6 u5 z 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... * p! ^$ f2 u% p6 ]6 |8 `' a VELOCITY EAST Aircraft velocity in true east direction; Symbols: V sub E; Typical Units: kt, ft/s; Dimensions: Length / Time; % J) Z* b: u5 n" c% j) XVELOCITY ERROR SCALE FACTOR(KVSF) A guidance control law parameter, generated by the longitudinal guidance modes; 6 o0 X+ C/ |8 [. n VELOCITY NORTH Aircraft velocity in true north direction; Symbols: V sub N; Typical Units: kt, ft/s; Dimensions: Length / Time; . c2 L; [" v& xVENTRAL 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 ... ' z1 Y- ?. x+ v7 X$ q- t VERT SPD Vertical speed hold 8 x; X' ^* B" w; [% c VERTICAL Reference to earth radial, for example, vertical velocity is velocity along earth radial; See Also: East-North-Vertical; ; h5 E6 }' w0 `1 R( \VERTICAL ACCELERATION Aircraft acceleration in earth vertical direction; Symbols: A sub V; Typical Units: ft/s-squared, g; Dimensions: Length / Time-squared; 5 k1 S7 o# L! ~/ V. `VERTICAL CUE A cue to control altitude; See Also: yoke cue, collective cue; ( U3 M, k1 s4 m. K5 h" S, Y VERTICAL GUIDANCE Calculations for the vertical axis, rather than the longitudinal axis. The control law vertical axis input data are: Desired Altitude, Altitude Integr... % H: i" C! o& T! p5 xVERTICAL SPEED HOLD (VERT SPD) A basic guidance mode, providing vertical guidance to maintain an operator selected vertical speed; 6 P6 A o. n. ^ VERTICAL SPEED INDICATOR (VSI) An onboard instrument which gauges rate of climb or descent, in feet per minute. 2 C5 I/ Q5 S# E0 i7 L5 aVERTICAL VELOCITY Aircraft velocity in earth vertical direction; Symbols: V sub V; Typical Units: ft/s; Dimensions: Length / Time; 9 j9 G% b, g; I$ Y2 H VF design flap speed. ' ?5 H) M; N8 d7 i4 _( w( m VFE Max. Flaps Extended Speed ! ^/ `$ u& x* k VFR Visual Flight Rules ("good" weather operations rules) , c+ n4 c9 B' x" z- j/ q: V8 EVFR 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... 8 D' m) c6 ^8 i1 vVH maximum speed in level flight with maximum continuous power. ' b/ ~; n6 u% \0 J4 G1 V VHF Very High Frequency radio equipment. ' N" R' U: N9 c. X% n( P8 Y 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... , y& e' ^7 \2 E" V: F: F( d. n: r+ ]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... 5 m, L5 |0 j! x9 l+ V7 m! K/ ?CVFR Controlled VFR (still existing in some countries) * w. p& F7 h& z9 p& x& C3 L CVR Cockpit Voice Recorder 9 ]4 S: i5 C% o0 T! `8 }! _; nCYCLES Pertaining to turbine engines. Cycle begins with starting, continues through full-power, and ends with shutdown. 3 c3 z- V( y! l5 F' U CYCLIC See: longitudinal cyclic, lateral cyclic; - w/ h/ ] g; ?+ V, hD Airspace ICAO Class D $ |6 @0 H& Q- J. P D.R. DEAD RECKONING; system of navigation. VIS Very High Frequency (30-300 MHz) ; I7 O# E# @* E& 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... 8 f" g) _) r( m/ V$ }6 ^ VISUAL METEOROLOGICAL CONDITIONS(VMC) Meteorological conditions expressed in terms of visibility, distance from clouds, and ceiling equal to or better than specified minima. 0 C3 ~! a. f7 V8 Y. q VJAR-FCL Verordnung JAR-FCL (JAR-FCL transformed to Swiss Law) ' v" Z2 B1 y4 B1 T0 e/ Y0 Z VLA Very Light Aircraft (Aircraft certification category) ' x4 ^' q+ U' L# B3 W VLE Max. Landing Gear Extended Speed . B* Y* i# L" l3 |% h5 D' V VLF Very Low Frequency radio equipment 6 X& G( d( S7 cVLO Max. Landing Gear Operation Speed 2 X# S! }; V( y* g' t0 m" NVLOF lift-off speed. 0 H' r( d7 B4 y! r4 R9 [" [VMC Visual Meteo Conditions ("good" weather for VFR or IFR) * C& p* r9 i9 Q$ P \4 ~& O' p VMO maximum operating limit speed. " A! }% G5 |5 @7 l( UVMU minimum unstick speed. . L# u; C, {. k* G* oVNAV Vertical navigation, or the capability to compute pitch-axis maneuvers and altitude-related points in space. 0 w( e+ e3 R; ^( B2 b# d VNE Never Exceed Speed Z; B8 T- X: ]0 c" ^ VNO Max. Structural Cruising Speed 8 f, `0 G/ _4 n! S! yVOR A ground-based electronic navigation aid transmitting very high frequency navigation signals, 360 degrees in azimuth, oriented from magnetic north. Us... + _. f* }" S2 O: X1 k4 [ VOR/DME Vertical Navigation (GLS) 3 d* z$ X. W# ~7 E, h+ nVORTAC VHF Omni range; 9 c& T( t/ E) fVR Rotation Speed 7 b! A% j3 W' i$ C9 Q+ EVS the stalling speed or the minimum steady flight speed at which the airplane is controllable. - m8 t/ W& ~7 Y3 t9 Y8 k# o VS0 Stalling Speed Landing Config 6 j$ M+ B* |2 x( q* `1 IVS1 Stalling Speed in a specified Config. . B3 o* V/ P( d6 e. ~- N7 T- D* zVSSE Minimum Safe Single Engine Speed " I. D% u# O0 a0 R8 y9 u8 \) r% n4 N VTOSS takeoff safety speed for Category A rotorcraft. 7 p( X8 s- F+ ]# h VX Best Angle of Climb Speed 8 _, [4 b! \ o4 {VXSE Best Angle of Climb Speed, 1 engine inoperative ; f7 K1 m; U# n; E8 ?: t! r VY Best Rate of Climb Speed & I9 e2 a, e& z) ~VYSE Best Rate of Climb Speed, 1 engine inoperative 4 M3 C) R7 }0 R8 t) s" X; ~ WA (IAOPA) World Assembly # Y5 G7 ^9 F/ LWAAS GNSS wide-area augmentation system. 0 W1 p0 R/ J* x WANGANUI Colored flares dropped on H2S to sky mark a target ; @5 |) k" r. yWARNING A signal which alerts the operator to a dangerous condition requiring immediate action (from MIL-STD-1472D); an annunciator that is the most critical ... $ Z4 z9 H0 n! h; y# i WARNING, CAUTION, ADVISORY (WCA) See: warning, caution, advisory, annunciator, alert; F' z( X: y" U( t. KWASH-OUT FILTER A filter to smooth a transition due to change of input source, such as when changing modes; See Also: transient-free switch; & X) |) X% Q! B1 @WASHOUT 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... 0 }* h% d8 x6 fWASSERMANN German long range radar with a range of up to 190 Km. ! @& f; r' {' u& T/ f, R2 i: oWAYPOINT A predetermined geographical position used for route/instrument approach definition, or progress reporting purposes, that is defined relative to a VOR... # q9 |: m6 ~3 O' M 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... ; v$ P- T* V9 ?6 ^1 M. A, GWAYPOINT APPROACH To approach a waypoint & g% O. p" K" ]. z% l Z' { 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. 6 @5 B0 n% C4 Q3 b. W& Y% a. gWEIGHT 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... : ?2 @2 U4 q4 c5 m WET WINGS Method for containing fuel in wings without using rubber fuel cells. 8 i- r$ \ h5 T( F! V/ ^4 JWGS-84 Wide Area Augmentation System 2 ]( ]) S9 w/ _7 HWGS72 World Geodetic Survey 1972 ! _3 m: _0 i& p2 l: X6 bWGS84 World Geodetic Survey 1984 / s ~* H6 @# S7 K- v' M0 F1 Y! W+ ^ 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... % P, h7 w4 z" G! v 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... % I8 z, E5 v+ I! OWHEEL 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... 7 @0 H* o) x8 D+ \* r1 ` WHITE BOMBS Nickname for propaganda leaflets. + B) n( a, z' pWILDE SAU WILD BOAR. German ground- controlled night fighter system using twin engined aircraft z/ L0 P# B" R, `4 UWIMPY RAF nickname for the Vickers Wellington bomber. The name came from J. Wellington Wimpy, a character in the Popeye cartoon in the Daily Mirror & z5 d& ]* {* kWIMS System Wide Information Management 0 P/ Q8 Z. _' Z; eWIND BEARING Symbols: B sub W; Typical Units: rad, deg; , ^% h% _0 y4 x# G/ ~* @1 z {, CWIND SPEED Symbols: V sub W; Typical Units: kt, ft/s; Dimensions: Length / Time; / j6 {0 k4 V0 E4 e+ D* \2 { WINDOW Strips of silver paper dropped by British aircraft to confuse the German ground radars ( _- |$ t+ V: g; F/ u1 A% ^2 f WINDSOCK 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. $ }' \% y$ q1 {WING The main lifting surface of an airplane. 0 E+ T% y( e* _) m6 Z. tWING 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... 6 O; D5 g Z; d0 n, `7 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... & i- ]0 `: W% a7 } WING ROOT The centerline of the wing, where the left and right wing panels are joined. 4 p5 F; h* `' r* f1 r+ j 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... 0 O5 e' x7 f5 X+ X, aWIP Work in Progress & o8 E) V B' m, }( N WMO World Meteorological Organization : L/ Z! i! j0 C- R8 e$ GWORLD GEODETIC SURVEY 1972 (WGS72) A standard model for computing earth data; / Q. q- U1 s. P, _" ^/ {WORLD GEODETIC SURVEY 1984 (WGS84) A standard model for computing earth data; ' s* F, p" Q& w& u WOW Weight on wheels # B m% k9 q- A! k: u- e; t WP Waypoint ( ?# _3 @: |9 _# V0 k9 X) IWPT Waypoint M I. m* r5 P. X. R WRAP TEST A test to send data to a device having it sent back unaltered % ]7 ?- ]5 i2 f: R. E- b. \$ OWWII Waypoint - [( h8 y/ }, _# L X. GWX Weather & m* [* s6 P! Z" C8 S- O7 R" y6 @ WYPT Waypoint / |+ Z0 n4 B, B3 @- q5 i- NWœRZBURG German short (11 mile) range gun laying radar capable of giving both height and range. 8 g% `) a- T8 j( ZX-BAND Frequency range in which most general aviation weather radars operate. ! Y! @0 S- q2 J" |3 {# q X-BEAMS German radio beams used to guide their bombers to the target 6 H6 s3 u- V3 f# t4 n( ~ ~XPDR Transponder. Radar-enhancement/data link box for ATC purposes. 5 d( O2 D' u: y& |3 a3 d Q. [ XPOND Transponder % S9 f' o$ c, _ XTK Cross track; cross track error. 1 n2 m! E8 j* o6 F4 S3 g& ^4 p. z XTKD Cross track deviation 5 s L" K8 H, _7 ]4 u XTKR Cross track deviation rate ) W% f3 u* Q; m; I: I4 R) A/ _ 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... ( B: a, m- l2 P3 C% } Y-BEAMS German radio beams used to guide their bombers to the target 7 v7 {3 `' K1 I$ f: d+ Z) r Y-SERVICE British organization for the interception and reporting of German wireless "chatter" for intelligence purposes. 2 ?% T. L% b' t( i! T 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 , q' O! x$ ?) _' sYAW The nose-left and nose-right movement of the airplane. This is controlled by the rudder. ) s) q. Y! Q1 d. U: C+ D' h( I, }! 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. 9 D0 P6 b- Z4 S1 ]+ Y. E YOKE CUE A vertical flight director cue for fixed-wing aircraft, primarily to control altitude, by changing pitch; Compare: collective cue; Symbols: Gamma sub ... 9 c P$ T4 s4 ]! U+ O* G# A( L Z Infra-red identification equipment , J5 E% k% Z# Y* K# r 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... + a( ?2 v! N+ i$ |# d! uZ-BEND A type of linkage point using a bend in the control rod which resemble a Z. f' D- U5 N9 k! U$ IZ-PLANE Discrete complex frequency plane; Z-plane is used in control systems engineering in the design of control laws See Also: Z transform; * R$ ~. R# [1 t6 C2 e0 w ZAHME SAU TAME BOAR. German "free lance" night fighter system using single engined aircraft * L2 g2 I/ c- q1 X9 B0 c" \ZERST–RER GESHWADER Luftwaffe Destroyer Wings, composed of Bf110 Heavy fighters 5 C7 F/ ]8 w# L/ DZOC Zone of confusion # ~) [! U. K, H# f m4 R1 HZONE OF CONFUSION (ZOC) A circular area centered at a TACAN station in which bearing is extremely noisy; 5 o7 J8 k6 v( A7 F* q ZULU Greenwich Mean Time, also known as Universal Coordinated Time.

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