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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 B4 Y) h8 K) V' c! R; e3 n% a TRANSCEIVERS A device that receives and transmits . I, Y, L" z5 y) C8 K2 z TRANSIENT-FREE SWITCH A switch with a wash-out filter so that the output contains no transients (steps) at switch time ^ g" H8 t; U! z* {TRANSMIT To radiate RF energy 0 z( x% x) B1 W! `0 k# U+ Q TRANSMITTER A device that transmits 4 w$ D/ N9 e% v0 l5 k( P8 YTRANSMITTER (TX) The hand-held radio controller. This is the unit that sends out the commands that you input. , r7 ]$ y, d7 A' B TRANSPONDER Transmitter-Responder ) a$ N/ m7 M. H( x+ d; yTRANSPONDER (TX) A receiver/transmitter which will generate a reply signal upon proper interrogation; the interrogation and reply being on different frequencies. 3 S# x, q; K) Q1 {# D4 L4 A TRE Type Rating Examiner ) f0 a5 y) N1 F$ z+ t2 z8 sTREND MONITORING Continuous computerized observation of turbine engine performance. Used to detect early sings of wear. - i9 r7 z0 s9 j8 E/ J \TRI Type Rating Instructor ! A* B. q: D s9 |5 r5 OTRICYCLE GEAR The landing gear arrangement where the airplane has main gear and a nose gear. 1 G8 g) |+ @1 ATRIM 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" D/ a0 h, N6 ~ TRIM TAB A secondary control surface, usually mounted to primary control surface such as aileron, elevator, rudder, or stabilizer, that controls the position o... ' X+ D+ R2 G" J0 N9 V+ i% M& j5 n TRK Track 0 t+ h' M2 I( @- Y& a TRN Terrain Referenced Navigation; ) B, x$ A( Z) Q/ T# W, ~ TRN-INS TRN with INS ; ~) A I4 A; ?) N. W0 Q, H TRTO Type Rating Training Organization : C# b; ?$ j$ j2 l5 e4 p* cTRUE Best available estimate, such as true airspeed; referenced to true north, such as true heading; * P; z+ R- Z4 Q% k) UTRUE AIRSPEED the airspeed of an aircraft relative to undisturbed air. True airspeed is equal to equivalent airspeed multiplied by (0/)1/2. + Z1 ^0 |7 T Z( y& T+ d$ f TRUE AIRSPEED (TAS) The airspeed of an aircraft relative to undisturbed air. 4 X6 d- S7 |% ~2 V0 `' {TRUE BEARING Symbols: B sub T; Typical Units: rad, deg; ( T" ?4 Z/ a$ u0 i) v8 G) ITRUE HEADING Heading of the aircraft relative to true north; Symbols: psi sub T; Typical Units: rad, deg; ' r" ]/ O' A1 j1 R3 S TRUE TRACK Ground track angle; Symbols: T sub T; Typical Units: rad, deg; 8 z! ^, s( _! d0 m# c% VTSC Total Time Since CORE 4 y& B+ z: S+ P; ]& A STSMO Time since major overhaul 7 L0 M7 U) h2 ~- yTSN Time Since New (also TTSN) ) \ D" z! E. k- a: m# }# b3 f TSO Technical Standard Order $ d2 s! k6 b9 ?+ R/ `( QTT Total Time Airframe - _0 J+ |! V eTTG, TTS OR TTW Time to go, time to station, time to waypoint. 8 W/ M+ S( V: H; Y, { TUBA a jamming device for Freya radar operating in the 70-200 MHz range ! @$ P) E n8 P8 Z+ s9 k4 O! r8 dTUNE To set the operating frequency or channel for a device % k: q; R8 p; v6 a8 h+ E TURBO PROP Is said of an airplane powered by a type of jet engine, the turbo prop, equipped with a turbine-driven propeller. 0 m2 Y6 u) N3 W- M 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. 0 D$ [5 y: d6 I! ITURBOPROP AIRCRAFT An aircraft having a jet engine in which the energy of the jet operates a turbine which drives the propeller. - }: E/ n$ g; ATURBULENCE 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. 4 ?) E# @; Q l! S; Y) C0 uTWR Tower (Control Tower) ( B* Q i9 b# g7 oTYPE (1) As used with respect to the certification, ratings, privileges, and limitations of airmen, means a specific make and basic model of aircraft, incl... $ {, H6 c- |9 a5 w, B* y" j/ `2 Z7 {U Airspace Euro control project Class U (unknown traffic) & N U( X4 n6 u+ V) r U/S unserviceable # O8 E4 k' H$ FU/V ADF UHF/VHF Automatic Direction Finding * L; H: `% g! X) o UAT Universal Access Transceiver * S G9 j# d+ D0 W, M- A UAV Unmanned (or Uninhabited) Aeronautical (or Aerial) Vehicle & N1 e& A' u3 ]- g0 O& @ UFN Until Further Notice j9 L. H0 L5 DUFO Unidentified Flying Object . p- F' X' ]/ S7 N, ?2 Y1 z& P UHF Ultra High Frequencies (300 MHz-30 GHz) - m( R# ]3 g7 I6 Q# i K5 `" Z 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; 0 R+ `# ~1 B" p0 p& y. FUL Ultra light, Ultra-l©ger motoris© 5 J/ b. a$ D8 G' F3 a) O( KULM Ultra light, Ultra-l©ger motoris© ! k' F6 P3 J+ B% S* H9 n( a4 rULTRALIGHT VEHICLE An aeronautical vehicle operated for sport or recreational purposes which does not require FAA registration, an airworthiness certificate, nor pilot c... 1 n" O! v1 o3 k5 O& E# b/ k( r. nUMAS Unmanaged Air Space (Euro control Definition) : G& k" V; ?- o" \& o. A9 z 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... & H7 O6 U5 a1 S+ W; Z1 l UNDERCARRIAGE STRUT A part of an airplane`s structure, designed to resist distortion, which supports the landing gear. 3 Q6 Z e3 r p+ X0 c 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 ... 0 i: y$ Q+ J) d; R5 N8 z+ A; g. K$ NUNIT 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... * n; M6 J# }; q3 W/ r6 aUNIT LESS No units, such as ratios; a quantity with standard units of 1; a quantity with primary units of 1; Synonyms: dimensionless; - k$ ]/ D" X# X/ C+ q2 T, b 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... % m! A3 r$ O, ]2 l1 pUNIT 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... , x4 A) t2 u" A6 G4 ]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... 9 D# C/ K1 ^/ hUNITED STATES AIR CARRIER a citizen of the United States who undertakes directly by lease, or other arrangement, to engage in air transportation. ; n9 @4 [9 [5 J4 ] UNITS A standard quantity, such as ft or mi; Synonyms: dimension; ) A& e( k& e. Y 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; . {( j6 k% }( u# E" V) T8 G 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... & a: q" n# Z' C8 Z. BUPKEEP Codename for Barnes Wallis` bouncing bomb used in the Dambusters` raid 0 O" I/ q8 L, K( R2 ?3 gURB User Relations Bureau (CFMU) 6 v3 S+ ~! c/ V9 W% E' g2 l# i" tUSABLE FUEL (LBS) Usable fuel (gallons) x 6.7 lbs/gallon * a6 W6 g: a$ Y USAF US Air Force 7 |, U( U4 _) R+ a USEFUL LOAD Maximum Ramp Weight - (minus) Basic Operating Weight : n" B$ g- T$ B; O/ [ USG (AL) US-Gallon (3.78 Liter) k1 t8 e. E$ N- h2 [5 i$ ^9 G9 H UTC Universal Coordinated Time. 5 D/ \! j. @/ \1 {( ]1 UUTM Universal Transverse Mercator ) ^: \ m; ?4 f$ y& O4 z3 ZV 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. : b9 `4 [" f5 R' B( ~/ TV (Y) Speed for best rate of climb. & F ~5 ~) D3 H6 |2 Y: A, I) j V1 speed for best angle of climb. " G: s! G5 ^7 R) ^, k1 W1 q! j* G VA Maneuvering Speed (max. structural speed allowed for full control deflection) C1 ?2 r& E0 n3 F- XVAC Volts alternating current. 7 U& G0 }) N: m" ?7 ~5 ]3 z VAL Visual Approach and Landing (Chart) , w! W/ r4 V M& ~' h VAR Variation 1 h! ]/ E8 l& E3 G" T l' N VASI Visual Approach Slope Indicator & t5 N# E( q e- F& y% E. [9 DVAT Value Added Tax 8 \" q1 `2 }+ h5 \" LVB design speed for maximum gust intensity. ! m% T& j& R/ [- ` VC design cruising speed. + l+ L& |9 D( e% V; vVD Max. Dive Speed (for certification only) ; n# v' h' A J$ X- O" Y. y- B VDB VHF Data Broadcast ( A1 J! X9 x/ i" qVDC Volts direct current. # E3 k* b- G1 E! d& ~# f VDF demonstrated flight diving speed. 6 F) h2 e) f3 N# e6 F8 q9 JVDL VHF Data Link (-n = type n) 0 Y6 ]4 {4 {7 U- n/ a& _ VEF the speed at which the critical engine is assumed to fail during takeoff. 3 @# ?; ?& T% x5 N2 V$ jVEHICLE/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... ) @7 O# N% p3 f! b" w- P, MVELOCITY 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... 6 G! n) l, u1 O4 R: I* }VELOCITY EAST Aircraft velocity in true east direction; Symbols: V sub E; Typical Units: kt, ft/s; Dimensions: Length / Time; ) ?: r7 s$ j2 m; H* d' ?, ^5 u VELOCITY ERROR SCALE FACTOR(KVSF) A guidance control law parameter, generated by the longitudinal guidance modes; & P4 L! E' p& t: e VELOCITY NORTH Aircraft velocity in true north direction; Symbols: V sub N; Typical Units: kt, ft/s; Dimensions: Length / Time; . _4 a3 e$ @! L3 o' x$ y 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 ... # U5 V# T- @. | VERT SPD Vertical speed hold ' }5 Q, p( ?& [3 V. l# h q1 EVERTICAL Reference to earth radial, for example, vertical velocity is velocity along earth radial; See Also: East-North-Vertical; 7 E& b) N; Q; cVERTICAL ACCELERATION Aircraft acceleration in earth vertical direction; Symbols: A sub V; Typical Units: ft/s-squared, g; Dimensions: Length / Time-squared; 7 s f2 N9 L8 H6 y% J" fVERTICAL CUE A cue to control altitude; See Also: yoke cue, collective cue; 3 s }4 P% t7 n VERTICAL GUIDANCE Calculations for the vertical axis, rather than the longitudinal axis. The control law vertical axis input data are: Desired Altitude, Altitude Integr... 1 C4 g# g7 m# {, M$ r" g VERTICAL SPEED HOLD (VERT SPD) A basic guidance mode, providing vertical guidance to maintain an operator selected vertical speed; 8 m2 ]3 x9 @4 | VERTICAL SPEED INDICATOR (VSI) An onboard instrument which gauges rate of climb or descent, in feet per minute. " N8 v$ }3 z0 q* }1 A5 ? BVERTICAL VELOCITY Aircraft velocity in earth vertical direction; Symbols: V sub V; Typical Units: ft/s; Dimensions: Length / Time; 2 B2 A% {3 o! \! l8 U+ I4 ~ VF design flap speed. - L; T$ h+ d5 L. U1 f; Q( C& Q VFE Max. Flaps Extended Speed ) `) L, k6 S& {- _5 i7 V VFR Visual Flight Rules ("good" weather operations rules) # o+ o) K# d5 p/ k3 Y 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... , d8 @3 }( ~: e+ }6 O6 v% v VH maximum speed in level flight with maximum continuous power. - P" O: f; d$ J' k [- s9 E- K4 |- q VHF Very High Frequency radio equipment. / t" Y# t& M$ @2 B) AVHF 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... 4 X7 y7 t. q( j7 s3 `" O+ ]; \2 TVILLAGE 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... p7 n d" n3 M2 r tCVFR Controlled VFR (still existing in some countries) 0 i2 u& ~- v9 o. R; B: d0 c, n; D3 ` CVR Cockpit Voice Recorder 8 O" ?4 }' ?1 eCYCLES Pertaining to turbine engines. Cycle begins with starting, continues through full-power, and ends with shutdown. ! }' X8 b B \$ a) L) kCYCLIC See: longitudinal cyclic, lateral cyclic; " X7 I7 L) K% R8 I+ aD Airspace ICAO Class D 5 l; t; j ~: ?: G! D1 cD.R. DEAD RECKONING; system of navigation. VIS Very High Frequency (30-300 MHz) + s% H0 V) D* N& B/ \8 M! L1 \3 b 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... & y8 E+ \6 t1 w! k& X" K4 ` VISUAL METEOROLOGICAL CONDITIONS(VMC) Meteorological conditions expressed in terms of visibility, distance from clouds, and ceiling equal to or better than specified minima. ) ]1 O; ?( n& B# y/ y9 m+ ~VJAR-FCL Verordnung JAR-FCL (JAR-FCL transformed to Swiss Law) 0 R$ F. ?3 ?- E* Q: Q; RVLA Very Light Aircraft (Aircraft certification category) 8 f. E" s# q9 {+ ^# ?- x VLE Max. Landing Gear Extended Speed : f9 X3 l4 C0 ]' M+ @8 n. E: m VLF Very Low Frequency radio equipment 9 ], c# b5 G" G8 Q U$ g! M4 c VLO Max. Landing Gear Operation Speed . \1 n' P2 v9 d, A. Z% y& K. t: @VLOF lift-off speed. ) k( |4 n& ~4 T+ J VMC Visual Meteo Conditions ("good" weather for VFR or IFR) 1 x. Q+ z! m' h5 ~( J. ?/ w. K VMO maximum operating limit speed. 8 i) ?/ z. [* { VMU minimum unstick speed. - ? e: h7 ]% \- b; r4 J6 eVNAV Vertical navigation, or the capability to compute pitch-axis maneuvers and altitude-related points in space. / t) }- x( q( O2 yVNE Never Exceed Speed 2 E5 H1 u+ j/ N7 \5 f m VNO Max. Structural Cruising Speed 0 d2 F7 G6 [& t G6 T VOR A ground-based electronic navigation aid transmitting very high frequency navigation signals, 360 degrees in azimuth, oriented from magnetic north. Us... # f S! t7 c b0 u- O: I VOR/DME Vertical Navigation (GLS) " U/ e1 b& Q9 s8 M. p8 h. g VORTAC VHF Omni range; " z' \0 R9 _1 m; s7 s' lVR Rotation Speed . x5 u' F1 ]4 R8 BVS the stalling speed or the minimum steady flight speed at which the airplane is controllable. " B$ I" D# n& j VS0 Stalling Speed Landing Config 0 _, E/ O! i+ P& fVS1 Stalling Speed in a specified Config. 3 d5 t2 C: w9 x9 v VSSE Minimum Safe Single Engine Speed 9 A3 R+ X; R* Q s VTOSS takeoff safety speed for Category A rotorcraft. $ W% `2 }$ Q* f9 ~1 c, j VX Best Angle of Climb Speed : x1 o0 G) f1 `- f- M! H! z) X VXSE Best Angle of Climb Speed, 1 engine inoperative 6 u! o1 m" e% I' ]# f5 Z& ?VY Best Rate of Climb Speed . [ l0 a' k' X/ {3 B$ r9 [) ?1 D+ D) j VYSE Best Rate of Climb Speed, 1 engine inoperative ) H* L0 Y; K7 J, f7 V WA (IAOPA) World Assembly / @" Q) F( G* C+ c WAAS GNSS wide-area augmentation system. $ B, s) t; s" v% i+ ]8 L7 NWANGANUI Colored flares dropped on H2S to sky mark a target - w& U2 L9 z4 \+ f+ W$ R# g2 WWARNING A signal which alerts the operator to a dangerous condition requiring immediate action (from MIL-STD-1472D); an annunciator that is the most critical ... & C9 D& a2 ~. D1 I WARNING, CAUTION, ADVISORY (WCA) See: warning, caution, advisory, annunciator, alert; + V& z7 H/ ~, |% O 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; 5 h. G- T" j& N* w( p6 j- P9 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... & c6 Q% H% _6 } R7 v3 o2 Q8 ~WASSERMANN German long range radar with a range of up to 190 Km. " o' j! D. r' S" n WAYPOINT A predetermined geographical position used for route/instrument approach definition, or progress reporting purposes, that is defined relative to a VOR... 6 D. i! v/ ]: M6 P) H 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... ' z& M+ V2 @" ` z e; |9 I0 g0 gWAYPOINT APPROACH To approach a waypoint 1 ?8 c( S4 c2 f3 X; qWCA 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. 0 `. |' z+ b* i+ y4 f' U) a+ D' JWEIGHT 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 M) z* t' I/ `; K' B$ g) O WET WINGS Method for containing fuel in wings without using rubber fuel cells. 1 E4 C1 x" e& i WGS-84 Wide Area Augmentation System 1 G% |1 G9 E3 t! k7 \* I3 L+ { WGS72 World Geodetic Survey 1972 $ d7 ~/ r- f2 H WGS84 World Geodetic Survey 1984 $ T& Q0 L2 M1 d( n 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... 4 U4 Z$ K% E, X. y 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... 2 f9 m( B2 H/ Y9 HWHEEL 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 E, ]1 w# r" P: }" D WHITE BOMBS Nickname for propaganda leaflets. o: l* O1 b6 j" H. r WILDE SAU WILD BOAR. German ground- controlled night fighter system using twin engined aircraft / e: G5 F$ z7 l3 O. RWIMPY RAF nickname for the Vickers Wellington bomber. The name came from J. Wellington Wimpy, a character in the Popeye cartoon in the Daily Mirror * ?7 a0 b& U5 O$ H: l; N# ~ WIMS System Wide Information Management 9 a# e5 n; f4 M3 s5 lWIND BEARING Symbols: B sub W; Typical Units: rad, deg; / r$ p$ ~9 {6 ^ WIND SPEED Symbols: V sub W; Typical Units: kt, ft/s; Dimensions: Length / Time; . @5 P; B( R0 N7 |' q9 u WINDOW Strips of silver paper dropped by British aircraft to confuse the German ground radars 1 F$ w# ?& r- t( _+ S8 jWINDSOCK 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. % l/ m' D. c5 K9 ~- F" |8 D WING The main lifting surface of an airplane. 9 j' R1 v5 i! n# X1 T2 z. q t. aWING 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... 8 i$ L# F* h1 D# TWING 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... 6 a5 J8 T* P$ O' x$ p4 eWING ROOT The centerline of the wing, where the left and right wing panels are joined. ! l8 a3 N* a0 t+ T6 p) lWINGLET 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... 5 [2 e$ v, ^! {) }) l WIP Work in Progress 9 W" R' r, U# K/ S5 W/ A* F8 u% s7 G WMO World Meteorological Organization # n7 d4 L1 |, |2 [; H I WORLD GEODETIC SURVEY 1972 (WGS72) A standard model for computing earth data; 9 Y4 w# [* f, y! I) t" b WORLD GEODETIC SURVEY 1984 (WGS84) A standard model for computing earth data; ! ]/ |/ z( Q3 B- [* i Y. M" M WOW Weight on wheels 9 e7 D \5 X7 a- h3 D WP Waypoint - a1 Q( ~( B9 k4 O WPT Waypoint + Z7 W$ X- o( D; Z3 h6 w WRAP TEST A test to send data to a device having it sent back unaltered 7 ` ?# g5 }3 a; F o: D/ Y WWII Waypoint $ \& U+ g; p- E7 H' v6 Z' I WX Weather 9 D( b. H% {0 X4 S ~& U: u WYPT Waypoint 2 ?/ p6 \( z! i. n: v/ m4 k) f6 I: S WœRZBURG German short (11 mile) range gun laying radar capable of giving both height and range. 0 Z1 p; ^% Y% j! N1 nX-BAND Frequency range in which most general aviation weather radars operate. 7 o# \& b- _& B6 d X-BEAMS German radio beams used to guide their bombers to the target 0 N9 _. C; _1 O+ c/ h7 m% G' I XPDR Transponder. Radar-enhancement/data link box for ATC purposes. ) e( W9 \* D7 ? XPOND Transponder ( |4 V K4 ?! O/ f" vXTK Cross track; cross track error. + `( d, P" z1 V4 t9 P: ]XTKD Cross track deviation ( I3 @; Z E2 Q5 z. U7 e1 pXTKR Cross track deviation rate 9 Y! u( q1 B# a7 E" u 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... * T' X" P9 o$ R$ q1 ?( A# ~/ Q Y-BEAMS German radio beams used to guide their bombers to the target 0 p i: E- O, I1 Z! B9 S& _1 w% O Y-SERVICE British organization for the interception and reporting of German wireless "chatter" for intelligence purposes. $ ^! @. n/ F3 Q2 R( ` Q 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 & M, C4 Z* J7 v' X YAW The nose-left and nose-right movement of the airplane. This is controlled by the rudder. ( x9 _2 {9 ~. ]! V$ o; ^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 K* t2 N& K1 P) X' P7 h, L( ~YOKE CUE A vertical flight director cue for fixed-wing aircraft, primarily to control altitude, by changing pitch; Compare: collective cue; Symbols: Gamma sub ... . G3 }" C/ T- `1 @. X Z Infra-red identification equipment & G1 G2 X; E1 V& s' `# 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... 1 W; B4 Y n* u8 X5 f& NZ-BEND A type of linkage point using a bend in the control rod which resemble a Z. % [3 j/ E: P. R% ^' Y" J0 T Z-PLANE Discrete complex frequency plane; Z-plane is used in control systems engineering in the design of control laws See Also: Z transform; $ W- `; A) H, \ |' qZAHME SAU TAME BOAR. German "free lance" night fighter system using single engined aircraft ) T( F5 q0 D& G5 \& P+ O ZERST–RER GESHWADER Luftwaffe Destroyer Wings, composed of Bf110 Heavy fighters ) R/ j# p" s$ \4 m2 Y9 A6 U# J8 dZOC Zone of confusion ( H8 z0 P* ~" cZONE OF CONFUSION (ZOC) A circular area centered at a TACAN station in which bearing is extremely noisy; x( d3 l: ~4 e. `1 w' c7 r ZULU Greenwich Mean Time, also known as Universal Coordinated Time.

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