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W
W 1 Watt[s], and general symbol for power in SI
countries.
2 Weight, including total W on a structural member;
loosely synonymous with mass mg, and mass flow, esp.
through jet engine.
3 Force of applied load.
4 Energy [work]; E is preferred.
5 Tungsten [from wolfram].
6 Aircraft mission, prefix, electronic search or AEW
(USN 1952–62).
7 Modified mission, suffix, AEW (USN 1944–62);
prefix, weather reconnaissance (USAF from 1958, USN
from 1962).
8 JETDS code: armament, automatic flight or
remotely piloted.
9 Weather, and airport with NWS office (US).
10 West, western longitude.
11 Weapon.
12 Wave[s] or Mach-wave angle.
13 IFR flightplan; approved R-nav but no xpdr.
14 Wing [military unit].
15 Prefix, NW warhead.
16 White light.
17 Width, wheel track, maximum tyre [tire] crosssection.
18 Warning, warning area.
19 Indefinite ceiling, sky obscured.
20 Secondary station (Loran).
21 See W-engine.
22 Without voice (radio).
23 Suffix, quenched in cold water.
w 1 Generalized symbol for special fluid velocities, eg
vertical gust [or any velocity along the Z-axis], wing downwash,
propeller slipstream etc.
2 Warm (air mass).
3 Load per unit distance, or per unit area, or per unit
width of a panel.
4 Specific loading.
5 Linear velocity due to yaw, velocity normal to chord.
6 Suffix, wing; thus Ww = wing weight.
7 Rate term for weight or mass, eg per unit time.
8 Generalized symbol for work.
9 Range, of values.
W 1 Structural mass of wing.
W 2 Non-structural mass of wing.
W-code W (13): approved R-Nav but no transponder.
W-engine Piston engine with three linear banks of
cylinders about 50°–60° apart; also called broad-arrow.
W-wing Shaped like W in planform with sweepback
inboard and forward sweep outboard.
WA 1 Work authorization.
2 Prefix: word after ...
3 Airmet weather advisory.
4 Wing anti-ice.
W/A Weight per cross-section area (warhead).
W A Equipped airframe weight.
W a Air mass flow, eg passing through engine per
second.
WAA War Assets Administration (US, 1946 – ).
WAAF Women’s Auxiliary Air Force (UK, 1939–49).
WAAM Wide-area anti-armour munition.
WAAS 1 Wide-area active surveillance (radar).
2 World airline accident summary (UK CAA).
3 Wide-area augmentation system (GPS, US counterpart
to Egnos).
WAASA Women’s Aviation Association of South
Africa.
WAC 1 World Aerobatic Championships.
2 Weapon-aiming computer.
3 Wide-angle collimated; S adds system.
4 World Aeronautical Chart (1,000,000 scale).
5 Women’s Army Corps (US, 1943 – ).
WACA World Airlines Clubs Association [office,
Montreal] (Int.).
WACCS Warning and caution computer system.
WACD Wide-area change detection (DDB).
Waco World Air Cargo Organisation [office, Zurich]
(Int.).
WACRA, Wacra World Airline Customer Relations
Association (Int.).
WAD 1 Workload assessment device.
2 Wide-angle differential (see *GNSS, *GPS).
WADC Wright Air Development Center (USAF).
WADD Wright Air Development Division.
WADDS Wind and altimeter [setting] digital-display
system.
WADGNSS Wide-area differential global navsat
system.
WADGPS Wide-area differential GPS.
WAEA 1 World Airline Entertainment Association
[office, Los Angeles, CA] (Int.).
2 World Aerospace Educational Association [office,
Washington DC] (Int.).
WAEO World Aerospace Education Organization
[office, Leicester, UK] (Int.).
WAF Women in the (US) Air Force (1948 – ).
WAFC World area forecast centre.
wafer Complete (near-circular) slice of single crystal
(usually epitaxial) semiconductor material on which
numerous elecronic devices are constructed, subsequently
separated by scribing and cleavage to make chips.
waffle plate Thin metal sheet stabilized by impressed
dimples, often parallel rectangles. Same name for more
complex sandwich structures.
WAFS 1 Women’s Auxiliary Ferrying Squadron (US,
1942).
2 World area forecast system.
WAG 1 World average growth.
2 World Air Games, held annually.
WAGE Wide-area GPS enhancement.
waggle Rapidly repeated bank to left and right [say,
±20°].
Wagner bar Pioneer spoiler-type flight control with
bang/bang solenoid operation for radio command
guidance of missiles (from 1937).
Wagner beam Idealized pure tension-field beam
assumed to have zero compressive strength and thus to
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