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frequency at which the outp... 8 r( z5 h. \0 G2 H3 P- i
CVFR Controlled VFR (still existing in some countries) ( C- @7 a: E/ p/ `5 I# j. y4 W
CVR Cockpit Voice Recorder 6 E( s1 v/ k1 u$ f# a6 w. c4 I! ?8 `
CYCLES Pertaining to turbine engines. Cycle begins with starting, continues through full-power, and ends with shutdown.
. H$ E- i4 Z$ Z) n. ~. jCYCLIC See: longitudinal cyclic, lateral cyclic; 4 p& W1 k. Q0 Q' N; |' D
D Airspace ICAO Class D " K% A; S9 a$ L$ B# P
D.R. DEAD RECKONING; system of navigation. VIS Very High Frequency (30-300 MHz)
0 R, A+ |) |! \7 N4 S- ]& wVISUAL 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... 6 g" T7 P- |. a
VISUAL METEOROLOGICAL CONDITIONS(VMC) Meteorological conditions expressed in terms of visibility, distance from clouds, and ceiling equal to or better than specified minima. # N7 q, O9 g4 q9 U# u
VJAR-FCL Verordnung JAR-FCL (JAR-FCL transformed to Swiss Law) : O* Q. z. q" ^
VLA Very Light Aircraft (Aircraft certification category)
u! b& j, f! ?7 YVLE Max. Landing Gear Extended Speed
, T' W4 |$ @- _: |! HVLF Very Low Frequency radio equipment
( i, R O+ `& n3 v% q# w; DVLO Max. Landing Gear Operation Speed
8 r, n1 X6 X5 W+ pVLOF lift-off speed. # k2 ^. N1 M. e: g h2 g7 T9 b
VMC Visual Meteo Conditions ("good" weather for VFR or IFR) 9 ]6 B6 E: Q9 b: O) V7 y
VMO maximum operating limit speed.
8 Y( v9 \8 V/ [9 ] V5 QVMU minimum unstick speed. 4 Y$ V; e' ?7 o" ^
VNAV Vertical navigation, or the capability to compute pitch-axis maneuvers and altitude-related points in space.
/ O, [$ ]3 N6 [0 X, x- DVNE Never Exceed Speed ) K8 r; Y" k- @- n4 s
VNO Max. Structural Cruising Speed 1 N; }' S5 b: y: t8 {; b& b4 M* V
VOR A ground-based electronic navigation aid transmitting very high frequency navigation signals, 360 degrees in azimuth, oriented from magnetic north. Us... + o6 d: q7 N! M. o/ e
VOR/DME Vertical Navigation (GLS)
( z4 A8 y7 ?& ^) y' vVORTAC VHF Omni range; 4 n h0 G _ c/ U
VR Rotation Speed 7 `8 A" t; B v
VS the stalling speed or the minimum steady flight speed at which the airplane is controllable.
' N8 k. `8 x: j) n" {VS0 Stalling Speed Landing Config
" M L/ s5 a- L% e, zVS1 Stalling Speed in a specified Config.
# a u3 j+ S* s7 i$ oVSSE Minimum Safe Single Engine Speed
8 O: a9 i- j7 @! D& R9 fVTOSS takeoff safety speed for Category A rotorcraft. / Y' k. S# i" s: r
VX Best Angle of Climb Speed r9 j1 b6 `1 h, H$ D
VXSE Best Angle of Climb Speed, 1 engine inoperative 3 x1 m: n5 n9 A0 {$ g( E
VY Best Rate of Climb Speed
# G; u4 A+ _" k% v9 o, }VYSE Best Rate of Climb Speed, 1 engine inoperative / ^ Z" v3 V/ X3 y
WA (IAOPA) World Assembly 5 o* ]& t' P6 i9 c
WAAS GNSS wide-area augmentation system.
8 b5 N: }% B8 X2 w" W ?WANGANUI Colored flares dropped on H2S to sky mark a target
2 o# U0 k& E8 r7 }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 ...
3 t- Q+ {: b& f9 @0 e: |WARNING, CAUTION, ADVISORY (WCA) See: warning, caution, advisory, annunciator, alert;
5 l1 F$ n. b C- _6 z6 S% d gWASH-OUT FILTER A filter to smooth a transition due to change of input source, such as when changing modes; See Also: transient-free switch; " d6 n! B t- f
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... : J% I: X* R" Y2 P. P, X" {
WASSERMANN German long range radar with a range of up to 190 Km.
- m p7 |# z& W! e8 Q" F, cWAYPOINT A predetermined geographical position used for route/instrument approach definition, or progress reporting purposes, that is defined relative to a VOR...
& N2 ^8 |4 t: w& p4 a- i- nWAYPOINT (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...
2 k$ H8 @ t5 a/ _WAYPOINT APPROACH To approach a waypoint & s( F( Q! G9 D( B7 k+ U1 @
WCA Warning, Caution, Advisory |
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