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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 & ?7 |& \; S2 @3 c; L2 WTRANSCEIVERS A device that receives and transmits 6 O! ]( m; U$ J2 v* @ TRANSIENT-FREE SWITCH A switch with a wash-out filter so that the output contains no transients (steps) at switch time ( _7 ~: Q# b* }- f/ a TRANSMIT To radiate RF energy 2 V% [7 m1 I( _$ \& a TRANSMITTER A device that transmits ; H8 o% k+ [- }$ n1 I TRANSMITTER (TX) The hand-held radio controller. This is the unit that sends out the commands that you input. ' e3 f& ] x. ]6 t- ^TRANSPONDER Transmitter-Responder % X! J g7 d. [# U% YTRANSPONDER (TX) A receiver/transmitter which will generate a reply signal upon proper interrogation; the interrogation and reply being on different frequencies. 9 L$ D9 I" i7 h1 kTRE Type Rating Examiner # N# _1 a2 v4 h ~5 STREND MONITORING Continuous computerized observation of turbine engine performance. Used to detect early sings of wear. 0 {( U) Q/ P+ O2 {* c1 t( bTRI Type Rating Instructor + n1 c _; N2 j, H, d. TTRICYCLE GEAR The landing gear arrangement where the airplane has main gear and a nose gear. : K" v* Q9 `4 K$ {: B 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. 7 ~' f2 D" Z3 |6 T8 ~TRIM TAB A secondary control surface, usually mounted to primary control surface such as aileron, elevator, rudder, or stabilizer, that controls the position o... 9 u; {6 J6 W; \; g/ ~; Q5 [TRK Track * B6 Z* w( S, d+ z8 \" C: J( W- m- ATRN Terrain Referenced Navigation; - V9 n* q. a6 T7 \! Z' R* GTRN-INS TRN with INS 1 ^+ S9 A0 @7 `3 C, h TRTO Type Rating Training Organization 5 A2 d2 i* Q5 l n/ p TRUE Best available estimate, such as true airspeed; referenced to true north, such as true heading; . v t7 ^7 @: n, q- q TRUE AIRSPEED the airspeed of an aircraft relative to undisturbed air. True airspeed is equal to equivalent airspeed multiplied by (0/)1/2. ) O' K& \6 i4 ~# `0 n9 W3 UTRUE AIRSPEED (TAS) The airspeed of an aircraft relative to undisturbed air. " ~7 P' _4 j& m( o TRUE BEARING Symbols: B sub T; Typical Units: rad, deg; 8 Y ~; b' I$ f) n. V8 ~ TRUE HEADING Heading of the aircraft relative to true north; Symbols: psi sub T; Typical Units: rad, deg; 8 L$ d2 j! p4 E/ L$ S TRUE TRACK Ground track angle; Symbols: T sub T; Typical Units: rad, deg; 0 F1 f) S3 l6 v3 [' L# ^ TSC Total Time Since CORE 8 x8 [0 J1 N+ S0 {/ S% ATSMO Time since major overhaul * q3 H- h" q/ k3 m- KTSN Time Since New (also TTSN) 3 D- |, U" N* E0 WTSO Technical Standard Order $ e- S$ Z6 u$ }3 YTT Total Time Airframe ( R; p( S1 l. c+ V1 y) h5 p' q3 STTG, TTS OR TTW Time to go, time to station, time to waypoint. , F3 g+ G; j# o2 p4 W/ @4 m* j, hTUBA a jamming device for Freya radar operating in the 70-200 MHz range 3 V1 E a3 W; s, ]# H! \ TUNE To set the operating frequency or channel for a device 3 a* K3 V* e Q+ x/ @! [ TURBO PROP Is said of an airplane powered by a type of jet engine, the turbo prop, equipped with a turbine-driven propeller. : y: k" o. e" e' X' x' 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. 1 x* _9 C4 @$ ~TURBOPROP AIRCRAFT An aircraft having a jet engine in which the energy of the jet operates a turbine which drives the propeller. * S% n G; X/ bTURBULENCE 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. ) D% R0 _" `+ k: {3 s2 ^TWR Tower (Control Tower) 5 F) b" l* H* q! }/ t 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... 4 U5 H+ o3 E+ c' N3 T* m4 k) uU Airspace Euro control project Class U (unknown traffic) & t4 D. B: m+ E/ [9 AU/S unserviceable % f7 O% n, j8 T: X5 Z0 WU/V ADF UHF/VHF Automatic Direction Finding " D+ N% F) r. F& c- l; V( o UAT Universal Access Transceiver 4 f9 v( [, k8 a+ m5 m- S1 _( D' W UAV Unmanned (or Uninhabited) Aeronautical (or Aerial) Vehicle ' n7 T) f" J7 P7 C, H. X, {& Z UFN Until Further Notice & z; V- e* d+ LUFO Unidentified Flying Object , I; ~% F: i* m' ?UHF Ultra High Frequencies (300 MHz-30 GHz) 0 A# f& J) H+ }3 tUHF/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; 5 f1 C( I! s0 D0 W+ tUL Ultra light, Ultra-l©ger motoris© . z: V. y T$ ]8 C# R( l$ W, \0 TULM Ultra light, Ultra-l©ger motoris© ( `+ Z& _* \6 `( o U3 { ULTRALIGHT VEHICLE An aeronautical vehicle operated for sport or recreational purposes which does not require FAA registration, an airworthiness certificate, nor pilot c... 5 {2 r! s7 P, e- }5 _% v$ a3 d8 d( w UMAS Unmanaged Air Space (Euro control Definition) 9 E E4 X4 z6 H5 {: f4 m 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... 2 c( S* G& x9 N4 B5 `) uUNDERCARRIAGE STRUT A part of an airplane`s structure, designed to resist distortion, which supports the landing gear. 0 O$ j4 j. S0 ~. X/ ^ 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! n4 {! k4 Z4 |( w# T, Y4 rUNIT 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... 8 ?& H/ ~6 E% ?; r0 g' r% g5 |UNIT LESS No units, such as ratios; a quantity with standard units of 1; a quantity with primary units of 1; Synonyms: dimensionless; ; [) d+ y& F9 I1 r* U" S" xUNIT 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... ) o& Q( s( @4 e2 j7 b0 P' W 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... ' _) E. {3 F" ]: f, h, v( u5 MUNITED 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... 9 G% F9 y$ N4 Z! V) Q. ZUNITED STATES AIR CARRIER a citizen of the United States who undertakes directly by lease, or other arrangement, to engage in air transportation. + p; A4 ]+ P8 e5 |) n4 P( I3 k. _UNITS A standard quantity, such as ft or mi; Synonyms: dimension; 1 \. x9 h( Y+ o ~; [2 I& s 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 @: D. U6 X0 l6 N8 UUPDATE 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... 4 w9 z; d4 R& n! t/ I- y+ u% H, vUPKEEP Codename for Barnes Wallis` bouncing bomb used in the Dambusters` raid 5 l ]2 r0 c4 H2 h, b$ \" Y: Q8 D, dURB User Relations Bureau (CFMU) ( O, `+ Q6 o( c+ U0 |. ]0 X8 SUSABLE FUEL (LBS) Usable fuel (gallons) x 6.7 lbs/gallon ! E+ V D' c$ D! `0 _* M% xUSAF US Air Force $ w& _& ?5 Q* Q/ r6 l5 R; f' jUSEFUL LOAD Maximum Ramp Weight - (minus) Basic Operating Weight 0 `; @! D! \6 Z6 e& P% }8 {USG (AL) US-Gallon (3.78 Liter) # X- ^( n( a& Q2 a0 V; J/ aUTC Universal Coordinated Time. 3 W( g8 S( |3 b+ \! C" kUTM Universal Transverse Mercator E0 c. c* W- p9 U) j: ]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. + G6 \: a; G5 X: ?1 h V (Y) Speed for best rate of climb. & b9 i' L$ q& U6 u2 i V1 speed for best angle of climb. & t. W: b$ g7 Z5 w- q& M& K9 k VA Maneuvering Speed (max. structural speed allowed for full control deflection) ! ^% L2 s/ A- j; o% n+ W VAC Volts alternating current. " i o2 L- C @# l VAL Visual Approach and Landing (Chart) ' a8 U, D+ W0 R: M7 u1 aVAR Variation 9 m# q7 \' t1 q: G1 A. R8 U$ u6 oVASI Visual Approach Slope Indicator # T- a+ q$ y: GVAT Value Added Tax ! @( t. G/ C" F9 \# {% v; |VB design speed for maximum gust intensity. 7 R7 c" t7 R7 Q4 K8 h2 [VC design cruising speed. ) @% t3 ?: k4 [ VD Max. Dive Speed (for certification only) : N. N& b4 f8 i+ u VDB VHF Data Broadcast 3 Y$ \: j' A% R% e. KVDC Volts direct current. 3 g$ Y+ i2 i2 a: [9 A VDF demonstrated flight diving speed. , R+ ^' J. Q) A) f7 ?7 J& T VDL VHF Data Link (-n = type n) 9 H$ S$ u4 a* K' }$ f VEF the speed at which the critical engine is assumed to fail during takeoff. 0 K! p4 v3 }! y6 O- nVEHICLE/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... 2 x3 v: H' B- ~* ~0 N; OVELOCITY 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... # D6 E8 y. W2 h( x4 i VELOCITY EAST Aircraft velocity in true east direction; Symbols: V sub E; Typical Units: kt, ft/s; Dimensions: Length / Time; ]' i! `8 c0 K- C, e VELOCITY ERROR SCALE FACTOR(KVSF) A guidance control law parameter, generated by the longitudinal guidance modes; 2 N% r' o4 I: n0 m8 ?' n VELOCITY NORTH Aircraft velocity in true north direction; Symbols: V sub N; Typical Units: kt, ft/s; Dimensions: Length / Time; & \6 |: X' f2 u% m 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 ... 4 n3 F. B( I% z2 w; i0 A: | VERT SPD Vertical speed hold + h; I) Y# O' q! CVERTICAL Reference to earth radial, for example, vertical velocity is velocity along earth radial; See Also: East-North-Vertical; & t* G' x' o7 y$ x9 s4 z2 EVERTICAL ACCELERATION Aircraft acceleration in earth vertical direction; Symbols: A sub V; Typical Units: ft/s-squared, g; Dimensions: Length / Time-squared; [4 p T/ Y1 k* T6 h VERTICAL CUE A cue to control altitude; See Also: yoke cue, collective cue; 8 t+ Z- \! C3 @5 u4 j7 T7 Q6 f+ O$ u8 E) ~VERTICAL GUIDANCE Calculations for the vertical axis, rather than the longitudinal axis. The control law vertical axis input data are: Desired Altitude, Altitude Integr... $ d- {1 [6 c4 ?5 C" l/ O/ B+ y VERTICAL SPEED HOLD (VERT SPD) A basic guidance mode, providing vertical guidance to maintain an operator selected vertical speed; " i1 E% X3 l. a0 ^7 i/ n# {; `8 O5 G VERTICAL SPEED INDICATOR (VSI) An onboard instrument which gauges rate of climb or descent, in feet per minute. ) h. ^5 H3 o/ yVERTICAL VELOCITY Aircraft velocity in earth vertical direction; Symbols: V sub V; Typical Units: ft/s; Dimensions: Length / Time; ' J# F3 h) P! C# C VF design flap speed. ' A% E9 Y7 ]2 I# w7 t2 vVFE Max. Flaps Extended Speed ' P4 O* q! L. y5 I- sVFR Visual Flight Rules ("good" weather operations rules) @8 U. `/ m# GVFR 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... 6 C& {" \" I6 d. \6 X2 d: UVH maximum speed in level flight with maximum continuous power. % Q" b% N. E5 r! f5 IVHF Very High Frequency radio equipment. 3 z! p$ D- E. ^6 M$ p: } dVHF 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... & N+ X8 j+ w4 Z& ]5 @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... ! f, O. X! R9 I* O CVFR Controlled VFR (still existing in some countries) 0 ]5 T8 z5 X/ M9 s2 zCVR Cockpit Voice Recorder + ^( Z7 G+ ^ P( [0 g CYCLES Pertaining to turbine engines. Cycle begins with starting, continues through full-power, and ends with shutdown. ; U* o. I1 e" L- y; c2 f CYCLIC See: longitudinal cyclic, lateral cyclic; ' c6 b0 m; e* V3 e& @: r7 u8 s1 h D Airspace ICAO Class D % X0 R- h- S. R, n4 M0 g3 T/ dD.R. DEAD RECKONING; system of navigation. VIS Very High Frequency (30-300 MHz) " @8 g2 H: A7 ?$ ]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... # a$ u' C6 t* |, d% @VISUAL METEOROLOGICAL CONDITIONS(VMC) Meteorological conditions expressed in terms of visibility, distance from clouds, and ceiling equal to or better than specified minima. ; e) F/ Z7 L. I' g: ^ VJAR-FCL Verordnung JAR-FCL (JAR-FCL transformed to Swiss Law) ' j+ C' c2 ~8 X2 V4 ^( [ VLA Very Light Aircraft (Aircraft certification category) + I; I/ t. X3 o" b* V0 b VLE Max. Landing Gear Extended Speed $ Y W* j) N3 f( u0 P- z VLF Very Low Frequency radio equipment $ R! d' P4 P7 t7 u& G/ G1 k: g6 b VLO Max. Landing Gear Operation Speed 4 p0 d/ }4 S Z) aVLOF lift-off speed. ) j) Z8 I! q0 k9 g. g1 A VMC Visual Meteo Conditions ("good" weather for VFR or IFR) % ], p h: l7 J- \. W VMO maximum operating limit speed. 6 D- ^% Q* ?. v p7 _ VMU minimum unstick speed. + ?+ k; U! J8 D' Y5 q3 WVNAV Vertical navigation, or the capability to compute pitch-axis maneuvers and altitude-related points in space. O3 S4 Y$ m0 X; V7 X' h! ~7 @ VNE Never Exceed Speed ) ^! p3 R* R' e! u VNO Max. Structural Cruising Speed ) d1 b. I/ a @4 g4 Y VOR A ground-based electronic navigation aid transmitting very high frequency navigation signals, 360 degrees in azimuth, oriented from magnetic north. Us... 4 y) X$ H8 J" ~ VOR/DME Vertical Navigation (GLS) ( [* V6 n) S' M9 B7 k/ P ZVORTAC VHF Omni range; ) A% J4 e) H: L1 r( @VR Rotation Speed 3 B/ ?' \* F' |/ h/ Z VS the stalling speed or the minimum steady flight speed at which the airplane is controllable. 3 r& p+ b: f% h. HVS0 Stalling Speed Landing Config ' o9 p( x. g: p9 i S+ XVS1 Stalling Speed in a specified Config. - C$ M6 v8 c) r- R+ H VSSE Minimum Safe Single Engine Speed ; ^7 f9 v5 p5 MVTOSS takeoff safety speed for Category A rotorcraft. # g( A- E7 ^: I7 ]6 K& H4 w* fVX Best Angle of Climb Speed 3 Q; |: O$ ] v) { VXSE Best Angle of Climb Speed, 1 engine inoperative ; o! |( b3 }. i$ @VY Best Rate of Climb Speed * u3 [% ~7 N: r) R! }( e VYSE Best Rate of Climb Speed, 1 engine inoperative 9 D1 h1 |; Z% ?7 N: _( UWA (IAOPA) World Assembly / K; w) K3 u# H3 ]$ e) _5 O+ \WAAS GNSS wide-area augmentation system. 7 U2 g9 G. j% k' V: ?) n# ^ WANGANUI Colored flares dropped on H2S to sky mark a target ; C( ]% M8 H2 FWARNING A signal which alerts the operator to a dangerous condition requiring immediate action (from MIL-STD-1472D); an annunciator that is the most critical ... ( k/ O: F# @& l4 W, jWARNING, CAUTION, ADVISORY (WCA) See: warning, caution, advisory, annunciator, alert; * h- d U& i* r4 U7 `; 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; ! w+ |$ W9 q q4 U$ k5 KWASHOUT 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... 7 I6 n& v7 J) ?! rWASSERMANN German long range radar with a range of up to 190 Km. * R6 X) Q/ _1 X WAYPOINT A predetermined geographical position used for route/instrument approach definition, or progress reporting purposes, that is defined relative to a VOR... 1 l6 R8 p5 S0 o/ E/ T 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... 9 F6 O5 [( j2 U, z" s8 t2 p0 R WAYPOINT APPROACH To approach a waypoint $ w8 o, ~( S+ K$ s4 zWCA 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. % ]( z: K# A4 J' A) F2 y- 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... ( n& C4 c8 i! F2 s" sWET WINGS Method for containing fuel in wings without using rubber fuel cells. ( G! b9 j) b8 Q# v6 }* n" aWGS-84 Wide Area Augmentation System * ], r9 m8 k, | WGS72 World Geodetic Survey 1972 5 o' u2 E7 |: a! B* H: y5 D WGS84 World Geodetic Survey 1984 . r& ~/ v! H' {7 ]& K 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... % u6 R- E( D$ g1 ^$ M 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... 1 U8 l: i, X# H- s& Y6 v WHEEL 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... R2 v% ^: n& f1 Z6 s1 IWHITE BOMBS Nickname for propaganda leaflets. 7 ^7 U! F* |; I# e( ~9 o; o4 M( f WILDE SAU WILD BOAR. German ground- controlled night fighter system using twin engined aircraft 6 G m g) N- {5 z+ CWIMPY RAF nickname for the Vickers Wellington bomber. The name came from J. Wellington Wimpy, a character in the Popeye cartoon in the Daily Mirror ! E. ~/ {2 G+ w: i! [- CWIMS System Wide Information Management : z# i. [1 } s7 g WIND BEARING Symbols: B sub W; Typical Units: rad, deg; 4 l; j5 R& ~+ F WIND SPEED Symbols: V sub W; Typical Units: kt, ft/s; Dimensions: Length / Time; 6 v* X& M9 n a! CWINDOW Strips of silver paper dropped by British aircraft to confuse the German ground radars * [ c$ x9 a1 M# S1 F2 r9 \+ UWINDSOCK 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. $ P% x x. o+ l WING The main lifting surface of an airplane. / b/ Z& E+ W Y4 }$ H8 v2 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... 4 Q4 s# e1 |: `7 D' X0 ^; Q 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... - N2 q8 B; m# g6 @, y5 C5 jWING ROOT The centerline of the wing, where the left and right wing panels are joined. ; i- _) g; P8 r) d9 n# @ 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... ! w9 D# h% P h G7 s$ f WIP Work in Progress 0 D* R+ s* E! w5 S" z WMO World Meteorological Organization # X5 s1 _7 k; v8 `! u% q6 _/ o' ~WORLD GEODETIC SURVEY 1972 (WGS72) A standard model for computing earth data; 3 w, n5 r& G3 ? f# _. c WORLD GEODETIC SURVEY 1984 (WGS84) A standard model for computing earth data; 0 I0 J3 j( o, t: H! |5 W% jWOW Weight on wheels 5 V& h3 g7 E( B# Q- q9 j$ |4 ? WP Waypoint / z7 G# B; E3 u p( f- LWPT Waypoint . y+ a3 W0 o- T M# R* v- H8 |5 PWRAP TEST A test to send data to a device having it sent back unaltered / N! Y, W% d1 m- |& f WWII Waypoint % Y7 P! O1 O8 S5 e# P @ WX Weather : K" [7 J& P! j WYPT Waypoint $ Z) ^) ]$ `6 q6 Z$ n7 g WœRZBURG German short (11 mile) range gun laying radar capable of giving both height and range. 4 q& S0 Q# \1 t. gX-BAND Frequency range in which most general aviation weather radars operate. - h1 t1 t G: m# z) ] X-BEAMS German radio beams used to guide their bombers to the target 9 j! m% k' M/ F5 t! uXPDR Transponder. Radar-enhancement/data link box for ATC purposes. / Y' U' N+ \" O# M* Z- w( mXPOND Transponder - ~& T, j/ s+ J* t7 b+ q8 fXTK Cross track; cross track error. % O: ?% E: ~ S1 ]6 X XTKD Cross track deviation : {& }3 X' W- [) Y& L+ k6 K, |. yXTKR Cross track deviation rate ; K8 y# q6 T+ g& Q7 E4 }5 N 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... 3 f P7 O0 l/ y) y0 t; r Y-BEAMS German radio beams used to guide their bombers to the target . Z6 G, w/ O) P' j4 i Y-SERVICE British organization for the interception and reporting of German wireless "chatter" for intelligence purposes. ' j( G! `& d& B% Z& _9 z 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 7 h9 a, Q& k4 [3 } YAW The nose-left and nose-right movement of the airplane. This is controlled by the rudder. % B+ T: b4 f; T 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. - r2 O4 P3 A6 E: o! N2 N% H/ Q YOKE CUE A vertical flight director cue for fixed-wing aircraft, primarily to control altitude, by changing pitch; Compare: collective cue; Symbols: Gamma sub ... % B4 i/ @( l* b; i1 N Z Infra-red identification equipment . Q+ l8 U% y+ U* E2 bZ TRANSFORM A mathematical relationship to model a discrete function in the complex frequency domain (Z-plane); Z transforms are commonly used by systems engineer... : X8 l5 F1 W# z$ W4 X, f2 kZ-BEND A type of linkage point using a bend in the control rod which resemble a Z. & m# v( J: \$ {4 oZ-PLANE Discrete complex frequency plane; Z-plane is used in control systems engineering in the design of control laws See Also: Z transform; . `; T8 g' y% R Z ZAHME SAU TAME BOAR. German "free lance" night fighter system using single engined aircraft $ k8 i* d- E$ c; j/ n/ d0 `* X, j' LZERST–RER GESHWADER Luftwaffe Destroyer Wings, composed of Bf110 Heavy fighters 0 `2 }& q6 s3 u; ]4 r t6 x ZOC Zone of confusion 7 M) {1 d- Y7 I( t1 b* @ ZONE OF CONFUSION (ZOC) A circular area centered at a TACAN station in which bearing is extremely noisy; * t1 ^, ~, \! x ZULU Greenwich Mean Time, also known as Universal Coordinated Time.

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