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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 * R t/ k: d8 [8 R% XTRANSCEIVERS A device that receives and transmits 3 x: w6 A# p; w4 F TRANSIENT-FREE SWITCH A switch with a wash-out filter so that the output contains no transients (steps) at switch time ( A) b4 x0 c' g% M9 H7 E( N% xTRANSMIT To radiate RF energy # Z* q% n. [7 Y8 VTRANSMITTER A device that transmits ' u$ A& M; Q2 V9 E1 T. ITRANSMITTER (TX) The hand-held radio controller. This is the unit that sends out the commands that you input. 7 a; X0 T0 {. h! KTRANSPONDER Transmitter-Responder 2 t7 Y f6 m; D r' c% B TRANSPONDER (TX) A receiver/transmitter which will generate a reply signal upon proper interrogation; the interrogation and reply being on different frequencies. 2 J3 Q- Y; m; H) ^8 \6 W; D- W TRE Type Rating Examiner , J6 n. j/ H' Z TREND MONITORING Continuous computerized observation of turbine engine performance. Used to detect early sings of wear. 8 L. X# o- r ^' R7 a! i* @ TRI Type Rating Instructor 7 c5 s! b/ w* f0 @, k TRICYCLE GEAR The landing gear arrangement where the airplane has main gear and a nose gear. % A1 J5 F1 S5 m5 U3 A" MTRIM To adjust an aircraft`s trim tabs and thereby relieve the pressure required on the controls to keep the nose in the desired position. 8 q* i! ~2 ~* B; O- T' L' \ TRIM TAB A secondary control surface, usually mounted to primary control surface such as aileron, elevator, rudder, or stabilizer, that controls the position o... 3 Z8 K! ?# x5 P4 v: \ TRK Track % ?2 i0 Z# f; K4 f! u8 \/ B0 z" ~TRN Terrain Referenced Navigation; 4 K( Y# G0 E4 ?' M) ?$ _ TRN-INS TRN with INS ! W" i, @. }( g. I5 PTRTO Type Rating Training Organization ) K8 P9 O0 }0 A: [* g. HTRUE Best available estimate, such as true airspeed; referenced to true north, such as true heading; " C8 ?) a0 y, o5 T0 t TRUE AIRSPEED the airspeed of an aircraft relative to undisturbed air. True airspeed is equal to equivalent airspeed multiplied by (0/)1/2. , s8 u+ X5 K# K1 z8 L TRUE AIRSPEED (TAS) The airspeed of an aircraft relative to undisturbed air. 8 n2 J- D+ E, @7 I) P TRUE BEARING Symbols: B sub T; Typical Units: rad, deg; , r7 S% d. J$ \3 C; v TRUE HEADING Heading of the aircraft relative to true north; Symbols: psi sub T; Typical Units: rad, deg; ) ]' |; l' [# \# J! } TRUE TRACK Ground track angle; Symbols: T sub T; Typical Units: rad, deg; 6 ~0 L* y- _8 X- P. D. G y# g$ \, XTSC Total Time Since CORE a8 M% ^8 ^5 G. @6 n( STSMO Time since major overhaul & i" P4 E$ Z( H TSN Time Since New (also TTSN) ! ?& g4 N3 ]1 y0 N7 ^& ]% ?1 p TSO Technical Standard Order " M+ q. Q, E2 | P+ R* L/ Z/ [TT Total Time Airframe t+ K' d; Z" z/ J1 B# d4 vTTG, TTS OR TTW Time to go, time to station, time to waypoint. & L5 E! ~$ r5 G# B4 k( eTUBA a jamming device for Freya radar operating in the 70-200 MHz range * c' c0 s% |) F/ P: p$ m# e TUNE To set the operating frequency or channel for a device 2 V! ]0 X' h6 g3 ~& L* G: Q% j9 BTURBO PROP Is said of an airplane powered by a type of jet engine, the turbo prop, equipped with a turbine-driven propeller. , m- i: H& D6 d. TTURBOJET AIRCRAFT An aircraft having a jet engine in which the energy of the jet operates a turbine which in turn operates the air compressor. 3 z( z3 b- t6 p TURBOPROP AIRCRAFT An aircraft having a jet engine in which the energy of the jet operates a turbine which drives the propeller. + O) b C: n( u7 a3 _: Y, HTURBULENCE 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. ; M2 a* E( v! W6 ^, @ TWR Tower (Control Tower) - [8 |" M% V! n: M$ }3 F: d; | 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... 6 V9 u8 F/ C& M, J2 ~ U Airspace Euro control project Class U (unknown traffic) 9 D0 N V7 Q3 b. j$ `3 PU/S unserviceable * |; o" x$ {2 b& h8 U8 u, J2 T U/V ADF UHF/VHF Automatic Direction Finding % ^' V/ L& O- ?1 }! R4 GUAT Universal Access Transceiver 6 G( M- I( s* H" T/ f } UAV Unmanned (or Uninhabited) Aeronautical (or Aerial) Vehicle u( E; O2 l' P UFN Until Further Notice / m% [( z/ n+ B/ g% ?4 l7 @# S+ TUFO Unidentified Flying Object * @8 Q0 D0 f- G/ ~3 m- M UHF Ultra High Frequencies (300 MHz-30 GHz) + U, j# p2 |; _; f3 ]" CUHF/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; : Y6 @: U+ D8 n$ J0 { UL Ultra light, Ultra-l©ger motoris© ( {8 h! j. O2 L2 yULM Ultra light, Ultra-l©ger motoris© - m) A( \! } X+ O5 u+ Z% d( H! p+ {ULTRALIGHT VEHICLE An aeronautical vehicle operated for sport or recreational purposes which does not require FAA registration, an airworthiness certificate, nor pilot c... ( j* N0 J6 N) G! s4 w& g& Y UMAS Unmanaged Air Space (Euro control Definition) & t( U3 t* i& s( u2 h4 P 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... - a N( n7 y0 p UNDERCARRIAGE STRUT A part of an airplane`s structure, designed to resist distortion, which supports the landing gear. " |' X( N* U; k4 T 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 ... & K |$ n; e, J7 {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... % N4 n( B5 d) J' @& a7 G UNIT LESS No units, such as ratios; a quantity with standard units of 1; a quantity with primary units of 1; Synonyms: dimensionless; B ?4 h x3 |7 t: B- \# k" M5 TUNIT 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... $ J) U& E# D/ H 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... & V; x* T ?8 i- | E# B' w l 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 w2 G( U: A4 D+ M7 ]% Z UNITED STATES AIR CARRIER a citizen of the United States who undertakes directly by lease, or other arrangement, to engage in air transportation. 0 G/ I4 k: T6 B) o% [/ x6 G7 z" i/ z$ P UNITS A standard quantity, such as ft or mi; Synonyms: dimension; d' u5 X5 I8 ]6 c0 q: i/ r4 ~, \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; ' t4 e$ w4 O3 s2 \$ M3 gUPDATE 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... & w! e! ]* n1 y( z" @ UPKEEP Codename for Barnes Wallis` bouncing bomb used in the Dambusters` raid 2 ~- P& m$ i" m M9 J1 h' M URB User Relations Bureau (CFMU) - Y. ^& ^% p$ I5 [4 T1 J+ h; d( t USABLE FUEL (LBS) Usable fuel (gallons) x 6.7 lbs/gallon , b5 y" p, z- }- A _USAF US Air Force , X+ _4 ~8 _: w1 d8 b( z* W4 p& g% I USEFUL LOAD Maximum Ramp Weight - (minus) Basic Operating Weight / e8 i) p) H( ?3 f/ r$ _: F b6 P. ` USG (AL) US-Gallon (3.78 Liter) 2 H/ |9 a$ A( ~% W' C UTC Universal Coordinated Time. 7 `" q' V; ~5 q( nUTM Universal Transverse Mercator ( Z; d- v# L H6 G3 }% `( z 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. ) L7 i, @# E# N6 o7 K V (Y) Speed for best rate of climb. 9 j7 A/ U) H$ _V1 speed for best angle of climb. + b5 B( W. X% D# J4 t8 @+ SVA Maneuvering Speed (max. structural speed allowed for full control deflection) $ G/ P; U. n+ R# w- i# F. BVAC Volts alternating current. 5 c. V. C9 o% x9 Y1 \" }" [ VAL Visual Approach and Landing (Chart) - J: h" K8 q( T B7 UVAR Variation Y% a0 V( ]5 D# u8 hVASI Visual Approach Slope Indicator ) E. J2 G! @/ K- S! O9 Z6 H2 j/ x VAT Value Added Tax & M# B( t) h0 f% m; S VB design speed for maximum gust intensity. 2 {# ^# ^7 J, e1 I# A VC design cruising speed. $ V X: U/ m( U* k: b+ t3 cVD Max. Dive Speed (for certification only) / b( y! D4 |5 fVDB VHF Data Broadcast 2 I- I% U5 i+ n% q; Y( j6 _ VDC Volts direct current. ! |4 s0 w6 @- l7 I! L/ g7 SVDF demonstrated flight diving speed. $ z l* D% d: w2 ]VDL VHF Data Link (-n = type n) % ]1 q. a; z( Y/ B# ?) l5 W' l VEF the speed at which the critical engine is assumed to fail during takeoff. 9 l# r8 A( {% j$ w 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... $ y+ ]6 w2 ~% ?7 i% y/ eVELOCITY 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... l2 y, u9 x0 h) Q7 S- g9 O! kVELOCITY EAST Aircraft velocity in true east direction; Symbols: V sub E; Typical Units: kt, ft/s; Dimensions: Length / Time; T! e& f4 J4 v5 F5 B, t VELOCITY ERROR SCALE FACTOR(KVSF) A guidance control law parameter, generated by the longitudinal guidance modes; 0 S5 Y% J; ?, V: OVELOCITY NORTH Aircraft velocity in true north direction; Symbols: V sub N; Typical Units: kt, ft/s; Dimensions: Length / Time; ) ?3 L3 U; h$ x3 S! N 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 ... % A& f; a' B. ~% z, j' ?( G7 a$ fVERT SPD Vertical speed hold # y6 t' [$ w# E! P' Z" J% m VERTICAL Reference to earth radial, for example, vertical velocity is velocity along earth radial; See Also: East-North-Vertical; & [( O- n% r# P: L, U0 AVERTICAL ACCELERATION Aircraft acceleration in earth vertical direction; Symbols: A sub V; Typical Units: ft/s-squared, g; Dimensions: Length / Time-squared; x: N/ s: O0 l, g) ~% p2 @. Z- E( U& z VERTICAL CUE A cue to control altitude; See Also: yoke cue, collective cue; 2 o! ?, O5 H' K9 X8 T6 }VERTICAL GUIDANCE Calculations for the vertical axis, rather than the longitudinal axis. The control law vertical axis input data are: Desired Altitude, Altitude Integr... 5 p, h/ b7 t$ _/ h VERTICAL SPEED HOLD (VERT SPD) A basic guidance mode, providing vertical guidance to maintain an operator selected vertical speed; 7 ~/ k. b/ d, v5 {8 N VERTICAL SPEED INDICATOR (VSI) An onboard instrument which gauges rate of climb or descent, in feet per minute. 2 ^' c! `' G' J |6 `6 L VERTICAL VELOCITY Aircraft velocity in earth vertical direction; Symbols: V sub V; Typical Units: ft/s; Dimensions: Length / Time; 7 R* ^9 z% m) j# _1 r V# _VF design flap speed. ' ?/ q& ~5 u; i/ o( }- LVFE Max. Flaps Extended Speed ! Q. i8 Z' I2 P4 o" s/ M' VVFR Visual Flight Rules ("good" weather operations rules) 9 G3 Q" S0 k# v. v 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... ^2 Y8 b! r4 \) w; x8 P VH maximum speed in level flight with maximum continuous power. : E7 G6 L3 S0 R5 k3 M VHF Very High Frequency radio equipment. * {' \) t# @) x" J! _2 D) x4 M; o3 }% C 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... - r- W5 ^8 ?* e3 j+ J) }: R1 ]* N 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... - j: j. w& A9 a CVFR Controlled VFR (still existing in some countries) ) @# l4 Q' q2 q$ w* W/ f3 n, cCVR Cockpit Voice Recorder 7 Y! T* }% C: L# m9 lCYCLES Pertaining to turbine engines. Cycle begins with starting, continues through full-power, and ends with shutdown. ) q; }4 z( R1 t) I, R8 cCYCLIC See: longitudinal cyclic, lateral cyclic; 2 F: n' f2 B& ] D Airspace ICAO Class D 8 d, }. F" D z" Q/ Y4 k/ Q D.R. DEAD RECKONING; system of navigation. VIS Very High Frequency (30-300 MHz) ( b- D! o% J" [! c! N; t0 ^. j- i 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... ! j, M- Q* H. G0 [4 R; N! z+ LVISUAL METEOROLOGICAL CONDITIONS(VMC) Meteorological conditions expressed in terms of visibility, distance from clouds, and ceiling equal to or better than specified minima. , `9 y+ h( d/ JVJAR-FCL Verordnung JAR-FCL (JAR-FCL transformed to Swiss Law) / h! z, v3 \# U# \$ HVLA Very Light Aircraft (Aircraft certification category) ! H8 a ]6 {( Y VLE Max. Landing Gear Extended Speed . p4 q2 d( q$ }5 c. l3 h VLF Very Low Frequency radio equipment : m+ `# n# T1 r; w2 T VLO Max. Landing Gear Operation Speed * M6 P/ y( s/ P% s }0 U2 m' ]VLOF lift-off speed. 3 Q, b4 h v a1 h% ?/ NVMC Visual Meteo Conditions ("good" weather for VFR or IFR) " q- R$ v6 W# o" X4 o& _VMO maximum operating limit speed. ; G1 n3 n, W( D# ?2 r$ q. c( _VMU minimum unstick speed. ) u/ F9 V" N: n/ l6 OVNAV Vertical navigation, or the capability to compute pitch-axis maneuvers and altitude-related points in space. 3 w5 X1 g# T* C7 R% I( mVNE Never Exceed Speed 0 q' e1 ^& a0 m) K) ]5 }, F4 \0 RVNO Max. Structural Cruising Speed " j* U) \* I+ z! L5 C6 d VOR A ground-based electronic navigation aid transmitting very high frequency navigation signals, 360 degrees in azimuth, oriented from magnetic north. Us... + b- N% M2 |7 V1 W+ r8 TVOR/DME Vertical Navigation (GLS) : n. j$ N2 Z' s2 w1 {" z9 IVORTAC VHF Omni range; ) q9 X0 m9 s; [- Q, tVR Rotation Speed # I7 i/ T3 ~% z/ d0 ^4 u, ~ VS the stalling speed or the minimum steady flight speed at which the airplane is controllable. i/ }: l4 n! F- I0 _VS0 Stalling Speed Landing Config 2 J1 d+ B2 A j4 r& H) e VS1 Stalling Speed in a specified Config. ' I; Z; C* b2 c- r# I+ MVSSE Minimum Safe Single Engine Speed " `4 v; j; d; _VTOSS takeoff safety speed for Category A rotorcraft. - @: J" b( S) a; c, F- \VX Best Angle of Climb Speed - C1 d) m& K% F5 v* Z& s0 r, PVXSE Best Angle of Climb Speed, 1 engine inoperative * p z, j9 u, B9 C* s0 {- V3 K3 {6 { VY Best Rate of Climb Speed # _& d, P2 p: G$ |VYSE Best Rate of Climb Speed, 1 engine inoperative & H$ `8 S0 @/ B9 | WA (IAOPA) World Assembly 7 w3 ]# a8 B8 a8 m7 z' V$ A& \" pWAAS GNSS wide-area augmentation system. ( F0 F- }5 W8 V/ X5 k w WANGANUI Colored flares dropped on H2S to sky mark a target ( d) c6 d( X" `- d3 U: s5 cWARNING 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 O' ^$ {0 S, V5 j7 `) `: W WARNING, CAUTION, ADVISORY (WCA) See: warning, caution, advisory, annunciator, alert; 0 [5 P8 W! L$ m0 ~/ OWASH-OUT FILTER A filter to smooth a transition due to change of input source, such as when changing modes; See Also: transient-free switch; 9 \* r* n1 y. h$ i7 l" { 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... 8 Z2 |' {. \% J2 R$ j, K WASSERMANN German long range radar with a range of up to 190 Km. % S9 j5 E7 O' g/ ^+ ?* x3 I' d" zWAYPOINT A predetermined geographical position used for route/instrument approach definition, or progress reporting purposes, that is defined relative to a VOR... 6 i9 V) m* }' h/ O. UWAYPOINT (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... # E2 ?* y' X, g j# m @WAYPOINT APPROACH To approach a waypoint * v3 A) X/ k' \% EWCA 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. ! n9 F( w" _3 R' b2 A) c, ZWEIGHT 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... . q. _$ A7 j7 s, I! @- \! bWET WINGS Method for containing fuel in wings without using rubber fuel cells. & ^4 H! I! w( `& TWGS-84 Wide Area Augmentation System 4 Q/ e% y) V3 V0 n* y WGS72 World Geodetic Survey 1972 ! f( R1 C) b7 ~WGS84 World Geodetic Survey 1984 # K5 ^8 z$ c' b0 f9 `* L$ E6 cWHEEL 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... $ j; ~" z0 W; u: O& @( ^$ ` 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 N" d8 y: ~$ \5 y/ y7 O2 n1 bWHEEL 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... - |- i( [% m2 J7 a/ G* x WHITE BOMBS Nickname for propaganda leaflets. 6 ^+ ~9 _( L. ?+ s G3 sWILDE SAU WILD BOAR. German ground- controlled night fighter system using twin engined aircraft + l+ t8 l- J- {$ k 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 2 P( r5 n5 d7 Y WIMS System Wide Information Management ' q1 w+ W! I# N+ @0 PWIND BEARING Symbols: B sub W; Typical Units: rad, deg; 9 G4 S0 N& Q6 k* _! m: B& l3 e WIND SPEED Symbols: V sub W; Typical Units: kt, ft/s; Dimensions: Length / Time; 8 Z# z! I' G3 I$ g" A7 ^4 |2 E. yWINDOW Strips of silver paper dropped by British aircraft to confuse the German ground radars 0 V9 L7 d% @" ^; z 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. V) c+ W7 k! N4 P( l; E WING The main lifting surface of an airplane. ; [0 `! |% W. n- g6 z1 Z% {' n% XWING 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... $ O- J2 O) z" t- U9 q2 U* @7 h 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 O* _' n9 N: U7 L8 | WING ROOT The centerline of the wing, where the left and right wing panels are joined. $ V' e1 U# U% x/ m( y% n" N; JWINGLET 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... # `( \6 B* e- R. cWIP Work in Progress # ^2 K" z7 R4 e C WMO World Meteorological Organization - P: P# ]5 R4 g) H. \' Y! H WORLD GEODETIC SURVEY 1972 (WGS72) A standard model for computing earth data; " i3 ]3 C* n6 c: Z j WORLD GEODETIC SURVEY 1984 (WGS84) A standard model for computing earth data; $ @2 L: S; [" m" [- I# n3 v WOW Weight on wheels # r ?' g1 P6 }. y5 s4 @ WP Waypoint ) W% d: Y) Q! n/ y WPT Waypoint ( C7 Y9 S1 C, }WRAP TEST A test to send data to a device having it sent back unaltered + I% U3 F1 ]# e1 M) `WWII Waypoint 1 f* z; Y. r1 [, e2 X WX Weather . Z* }+ j% R/ A8 ]WYPT Waypoint : c# G4 w# E' x$ k0 p% m% R NWœRZBURG German short (11 mile) range gun laying radar capable of giving both height and range. 5 q& {- j& c; T7 B0 WX-BAND Frequency range in which most general aviation weather radars operate. 2 t( r5 a4 v1 s! A/ ~# W X-BEAMS German radio beams used to guide their bombers to the target 4 ~. ^ s3 i6 ?+ V- T( f5 o9 ~, K( KXPDR Transponder. Radar-enhancement/data link box for ATC purposes. ; z& O& Z+ {8 N8 e XPOND Transponder 2 Y) e! _0 a4 B+ l ~3 P8 G XTK Cross track; cross track error. ' R* R) i M$ o. Z; h ?6 O; p( l' O XTKD Cross track deviation , r+ E: Y d- x( p1 Q6 w# g% T0 ? XTKR Cross track deviation rate * b4 E7 e; ~: L. }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 J; G7 ^) T3 ?2 _# D Y-BEAMS German radio beams used to guide their bombers to the target + V ^% U" _9 R w' `' AY-SERVICE British organization for the interception and reporting of German wireless "chatter" for intelligence purposes. ! [8 w0 }5 M. M# N; _7 ?& h o 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 0 @( j7 k# x" o8 t3 r( |$ k% t YAW The nose-left and nose-right movement of the airplane. This is controlled by the rudder. " a/ \6 m5 v' e/ P; r2 p9 u 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. & X# z4 C+ z8 y: Z YOKE CUE A vertical flight director cue for fixed-wing aircraft, primarily to control altitude, by changing pitch; Compare: collective cue; Symbols: Gamma sub ... ' {7 |% m- |8 G% E- U4 s7 a Z Infra-red identification equipment 4 X$ j" X7 k' r A/ l2 fZ TRANSFORM A mathematical relationship to model a discrete function in the complex frequency domain (Z-plane); Z transforms are commonly used by systems engineer... j# y# C+ @4 B, s5 kZ-BEND A type of linkage point using a bend in the control rod which resemble a Z. 0 f4 }8 F4 G" _& V9 m Z-PLANE Discrete complex frequency plane; Z-plane is used in control systems engineering in the design of control laws See Also: Z transform; & R" e1 y2 }' o! h4 ~" u) A, s& s ZAHME SAU TAME BOAR. German "free lance" night fighter system using single engined aircraft 8 d7 {7 { P- G ZERST–RER GESHWADER Luftwaffe Destroyer Wings, composed of Bf110 Heavy fighters ' [: p8 ?' |( }( ` ZOC Zone of confusion ; b9 U) N' `$ OZONE OF CONFUSION (ZOC) A circular area centered at a TACAN station in which bearing is extremely noisy; 5 t! y; t5 p, \+ t1 T ZULU Greenwich Mean Time, also known as Universal Coordinated Time.

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