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frequency at which the outp... 7 q2 j1 Q+ K7 i# ]
CVFR Controlled VFR (still existing in some countries) ) A6 F( M- ?) T$ Z
CVR Cockpit Voice Recorder # c9 ^6 ?& _; Q* v
CYCLES Pertaining to turbine engines. Cycle begins with starting, continues through full-power, and ends with shutdown. : Z6 R8 }0 n8 B* K' {
CYCLIC See: longitudinal cyclic, lateral cyclic; ; V$ q4 ^+ \3 ]8 m% R
D Airspace ICAO Class D * S4 q; r$ D* B# n4 [0 ~
D.R. DEAD RECKONING; system of navigation. VIS Very High Frequency (30-300 MHz) - I; E, k0 G' p$ n! e
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... + x9 q% ^. ^8 F" ?( G
VISUAL METEOROLOGICAL CONDITIONS(VMC) Meteorological conditions expressed in terms of visibility, distance from clouds, and ceiling equal to or better than specified minima.
( T4 P1 e% q6 n' \/ a( o. LVJAR-FCL Verordnung JAR-FCL (JAR-FCL transformed to Swiss Law) - r R" \; V& O; z* X) ~3 Y
VLA Very Light Aircraft (Aircraft certification category)
8 a; ^) X/ ^0 L4 { R. |. lVLE Max. Landing Gear Extended Speed 0 u3 Y8 n. z" b& F
VLF Very Low Frequency radio equipment
) A; K P8 P6 Q) i o+ RVLO Max. Landing Gear Operation Speed
; k+ E2 G9 Z( x7 ~* ?4 ~! uVLOF lift-off speed. 7 ^/ @$ d9 F: t! l
VMC Visual Meteo Conditions ("good" weather for VFR or IFR)
7 \( o+ o+ i9 s) C- Z3 q2 mVMO maximum operating limit speed.
, S% P, f2 J5 M. }$ D9 M; [VMU minimum unstick speed. 0 h/ S- l/ F, _4 s$ a) \- A
VNAV Vertical navigation, or the capability to compute pitch-axis maneuvers and altitude-related points in space. 1 R5 J9 C7 [, m" p }5 E
VNE Never Exceed Speed
' E5 S) F, [& F0 |' ` [VNO Max. Structural Cruising Speed & E. p4 [4 ~7 z$ U% W
VOR A ground-based electronic navigation aid transmitting very high frequency navigation signals, 360 degrees in azimuth, oriented from magnetic north. Us... 1 \: ?4 ]% e2 |) `5 ^8 t. n
VOR/DME Vertical Navigation (GLS)
( A+ k" e& p* @VORTAC VHF Omni range;
4 r* n6 F! o" u: ?VR Rotation Speed 9 C8 K. P8 ~7 n+ H# v
VS the stalling speed or the minimum steady flight speed at which the airplane is controllable. 7 R! X8 K& u5 R3 G- F2 o
VS0 Stalling Speed Landing Config
6 Z/ T- o, L( f9 l. ^* cVS1 Stalling Speed in a specified Config. 3 P& p6 s0 \) |3 b
VSSE Minimum Safe Single Engine Speed & }( M1 W2 Q& G+ F, v9 ^
VTOSS takeoff safety speed for Category A rotorcraft.
6 O. r8 T! N9 M. T1 }VX Best Angle of Climb Speed ( A; {) c ^. p. s7 W
VXSE Best Angle of Climb Speed, 1 engine inoperative
. f: B2 k) z" VVY Best Rate of Climb Speed $ a) L o7 d2 f2 N/ D( Z0 [
VYSE Best Rate of Climb Speed, 1 engine inoperative ; ]2 f; b, s( y0 Y- P g
WA (IAOPA) World Assembly
5 W( H. G w7 O2 L/ M/ UWAAS GNSS wide-area augmentation system. ) B- E& ^) K1 J& n1 [. v: _+ A: |
WANGANUI Colored flares dropped on H2S to sky mark a target 0 r. ]: q) M* s' S
WARNING A signal which alerts the operator to a dangerous condition requiring immediate action (from MIL-STD-1472D); an annunciator that is the most critical ...
5 V! r* U" ^! R* _! p1 |WARNING, CAUTION, ADVISORY (WCA) See: warning, caution, advisory, annunciator, alert; / e% J, Q6 P9 |: N L( ^' S# ]8 d/ 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; : X: y- b A. g" c9 `
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... 5 `3 R' J1 I; c$ _/ y( H M! f* y
WASSERMANN German long range radar with a range of up to 190 Km.
/ a+ E& W* U. fWAYPOINT A predetermined geographical position used for route/instrument approach definition, or progress reporting purposes, that is defined relative to a VOR... # N3 Y- ~- {4 o8 u
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... ( H) q' |% \( m* w1 f- n* w
WAYPOINT APPROACH To approach a waypoint
D6 k& x' x: K0 T- z/ n$ ]8 y- q( L' ]WCA Warning, Caution, Advisory |
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