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frequency at which the outp... 3 s+ @. X R/ w8 p+ B
CVFR Controlled VFR (still existing in some countries)
, y- \& R# o" o6 _8 wCVR Cockpit Voice Recorder
3 b& V& J; S: C3 w- i7 }CYCLES Pertaining to turbine engines. Cycle begins with starting, continues through full-power, and ends with shutdown.
, y9 `. `" _3 ^ N: UCYCLIC See: longitudinal cyclic, lateral cyclic;
A9 c# w0 M9 `, k* LD Airspace ICAO Class D
* W8 F; f* \' L& E, o X( n( JD.R. DEAD RECKONING; system of navigation. VIS Very High Frequency (30-300 MHz) . R7 I y- M. N* }) m
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...
- }' V) ?7 s0 A% H1 t4 wVISUAL METEOROLOGICAL CONDITIONS(VMC) Meteorological conditions expressed in terms of visibility, distance from clouds, and ceiling equal to or better than specified minima.
% Z" N- Q. S9 I1 L" V& {VJAR-FCL Verordnung JAR-FCL (JAR-FCL transformed to Swiss Law)
; e" A( h) q2 e, s. h8 \VLA Very Light Aircraft (Aircraft certification category) 5 f. G- P9 Y; v; Z4 G" l& U0 i
VLE Max. Landing Gear Extended Speed 5 S [0 p- i% k( K$ O
VLF Very Low Frequency radio equipment
% N9 D* n, H! m" n) uVLO Max. Landing Gear Operation Speed / W+ L4 E& h6 W0 w. i! a
VLOF lift-off speed.
1 P* X/ r: F6 H2 E8 zVMC Visual Meteo Conditions ("good" weather for VFR or IFR) 5 ?$ g9 B/ A% A! [+ w) k5 X3 o4 p
VMO maximum operating limit speed.
. p# E9 p. G& A; fVMU minimum unstick speed. 5 t0 u: |+ F0 o E3 }0 O
VNAV Vertical navigation, or the capability to compute pitch-axis maneuvers and altitude-related points in space. " b2 @. _# A' `6 @
VNE Never Exceed Speed
! a" @( f2 d r, m2 pVNO Max. Structural Cruising Speed
; L+ h5 G7 `+ t& H# H+ KVOR A ground-based electronic navigation aid transmitting very high frequency navigation signals, 360 degrees in azimuth, oriented from magnetic north. Us...
! o- g* _$ O) A; x! d) U9 DVOR/DME Vertical Navigation (GLS) 1 c7 ?& v' T. [1 w
VORTAC VHF Omni range; + L. x0 p7 w8 a- I( q
VR Rotation Speed
) Z9 b' w4 G4 W6 RVS the stalling speed or the minimum steady flight speed at which the airplane is controllable.
6 K; B- r- [+ `" \7 N1 J( HVS0 Stalling Speed Landing Config " @0 e+ h2 } Y: r
VS1 Stalling Speed in a specified Config. , \$ l( I! S3 \# C3 d, B
VSSE Minimum Safe Single Engine Speed 8 x, B& S# V! T7 ^1 Z. g' t
VTOSS takeoff safety speed for Category A rotorcraft.
4 e" L! D/ }. g" V' q4 e) c2 `9 yVX Best Angle of Climb Speed
. v, O" N1 L7 F6 t8 tVXSE Best Angle of Climb Speed, 1 engine inoperative 3 L3 v" M) [7 d# P" D4 O6 n
VY Best Rate of Climb Speed ' ?$ l, w; }8 O
VYSE Best Rate of Climb Speed, 1 engine inoperative
+ x0 B: @8 E7 x4 U5 L! _, VWA (IAOPA) World Assembly
9 E, c0 \( E5 c, K! U! yWAAS GNSS wide-area augmentation system.
4 B, e: h4 ]* RWANGANUI Colored flares dropped on H2S to sky mark a target + k; Q% f! [3 e3 g
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 ... , @* r& D0 L' p
WARNING, CAUTION, ADVISORY (WCA) See: warning, caution, advisory, annunciator, alert;
0 b9 H! V9 p- ~ U* W& X5 z+ rWASH-OUT FILTER A filter to smooth a transition due to change of input source, such as when changing modes; See Also: transient-free switch; 8 C( X5 ^5 O( x
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...
9 i1 G9 X. ?$ V8 j. W! x9 ?WASSERMANN German long range radar with a range of up to 190 Km.
5 [6 |6 ]" Q: CWAYPOINT A predetermined geographical position used for route/instrument approach definition, or progress reporting purposes, that is defined relative to a VOR...
( h5 ?$ P* F6 t% Z; i( e! G* ^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 ~/ t/ @( N nWAYPOINT APPROACH To approach a waypoint 7 x# F+ y( G u, z R. B1 v! w
WCA Warning, Caution, Advisory |
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