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wooden round
wooden round Missile that fails to work when needed
(colloq.).
Wood’s metal Low-melting alloy (70°C), typically 50%
Bi, 25% Pb, 12.5% Sn, 12.5% Cd.
woolmeter Yawstring.
woolpack Cumulus.
Woolworth carrier CVE, escort carrier (WW2 colloq.).
Woomera Location in South Australia of Weapons
Research Establishment, head of missile range extending
northwest to Indian Ocean.
WOP Wet (integral-tank) outer panel.
Wop Radio (‘wireless’) operator (colloq., arch.); hence
* AG adds air gunner.
Word Wind-oriented rocket deployment (Stencel seat).
word Basic group of ordered characters, bits or digits
handled in EDP (1) as one unit. In the latest standard
buses [1553B and A629] bits 1/2/3 provide locked synchronization,
bits 4 to a maximum of 19 send the word and 20
provides parity. In this protocol singnal change negative
to positive sends 0 and positive to negative sends 1.
word rate Frequency derived from elapsed time between
end of one word and start of next.
words twice Please repeat each phrase or sentence.
Worf Window Observational Research Facility.
work 1 Transfer of energy, defined as force multiplied
by distance through which output moves.
2 Transitive verb, to use a particular ground station by
airborne radio officer, hence working that station.
work function 1 Thermodynamic: Helmholtz free
energy A = U – TS where U is internal energy, T o K and
S entropy.
2 Electronic: energy (usually measured in eV) supplied
to electron at Fermi level in metal to remove it to infinite
distance; governs thermionic emission.
work hardening See strain hardening.
working Productive flight by Ag-aircraft or RPH, hence
* height, * speed, * endurance; last measure excludes time
between base and * site.
working fluid Fluid used as medium for transfer of
energy within system or (in wind tunnel) for study of flow
around body. Can be gas, vapour or liquid.
working line On any graphical plot describing performance
of a device [usually on 90° orthogonal axes], the
line to which device is intended to perform. Prime example
is gas-turbine compressor pressure ratio plotted against
airflow, always a safe distance below surge line.
working load That borne by structure or member in
normal operation; in aircraft varies greatly with turbulence,
manoeuvres and with aeroelastic forces, and
maximum is usually taken. Hence working stress experienced.
working pressure/temperature Value typical in normal
operation.
working section Where model or other body is placed in
wind tunnel; may be of open-jet form, without bounding
walls, in traditional low-speed tunnel.
working up Process of turning newly formed squadron
[or other unit] into state of complete combat-readiness.
work lights Powerful airborne floodlights, directed
forward or laterally, to enable agricultural aircraft to
work in the dark.
work package 1 Quantified series of operations required
to make one part of airframe; eg one wing panel may be
WR
divided into 15 **, each of short time period and exactly
costable.
2 Basic unit of manufacturing effort into which entire
product (eg aeroplane) is divided for allocation of effort
in agreed manner between programme partners.
work parameter dH/T, change of enthalpy over total
temperature, or CP dT / T , change in specific heat.
works 1 A factory (UK, suggest colloq.).
2 A functioning mechanism (UK, colloq.).
workscope A definition and schedule of work required
for a particular item [especially an engine] on a shop visit,
based on its condition and working environment.
Works finish Unpainted except for a coat of primer
[probably an archaic usage] (UK).
workstation Local interface to any major CAE system
or computer network.
world fare Averaged value(s) of IATA tariffs.
World Geographic Reference System Better known as
Georef, uniform position-fixing and designation system
for control of aircraft, targeting of ICBMs and many
other functions (USAF).
World Weather Watch Scheme to share and disseminate
weather-satellite information internationally; also called
VMM (WMO).
Worm Write once, read many, or multiple.
wormhole Theoretically achievable short cut between
two points [lightyears apart] by warping spacetime.
Wortmann Family of wing profiles designed by Prof
F.X. Wortmann of Stuttgart; tailored to R appropriate to
sailplanes (ie small chord), with outstandingly low drag
which, esp. for flapped sections, extends over wide range
of C L .
WOS Weather observing station.
WOT Wide-open throttle.
Wow, WOW 1 Weight on [rarely, off] wheels, hence
Wow switch.
2 Women ordnance workers (US, WW2).
WP 1 Warsaw Pact (now defunct).
2 Working paper.
3 White phosphorus; -T adds tracer.
W p Payload.
W/P 1 Waypoint; also WP or WPT.
2 Work in progress.
WPA 1 Wheelchair Pilots Association (US).
2 Works Progress Administration (US 1935, for
Federal relief).
3 Works Projects Administration (followed * 2 to
develop US civil airfields for defense purposes, 1939–43).
4 Weapon personality adapter.
wPa Warm polar Atlantic.
WPAFB Wright-Patterson AFB, Dayton, OH.
WPB War Production Board (US 1942 – ).
WPC World plotting chart.
wPc Warm polar continental.
WPFC World Precision-Flying Championships.
WPM, wpm Words per minute.
Wpn, wpn Weapon.
wPp Warm polar Pacific.
WPR 1 Wideband programmable receiver.
2 Waypoint position report[s].
WPT Waypoint.
WPU Weapon programming, or processing, unit.
WR 1 Work request.
2 Wave rider, waverider.
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