washout Inbuilt twist
of wing or rotor blade reducing angle of
incidence towards the tip.
watt SI unit of power, equal to 1 Js-1 (one Joule per second).
Wind-Corrected Munition Dispenser, being an add-on to the US series of
CBU-78/B, CBU-87/B CEM and CBU-98/ Gator cluster munitions.
Weapon delivery and navigation system.
fuel; wet wing often has extra connotation of integral tankage. Wet pylon can accommodate external
wheelbase Minimum distance
from nosewheel or tailwheel (centre
of contact area) to line joining mainwheels (centres of contact areas).
wide-body Passenger aircraft with cabin wide enough to have two longitudinal aisles
wing area Total projected area of clean wing (no projecting flaps, slats and
so on) including all control surfaces and area of fuselage bounded by
leading- and trailing-edges projected to centreline (inapplicable to slender-delta aircraft with
extremely large leading-edge sweep angle).
wing loading Aircraft weight (usually MTOW) divided by wing area.
Small auxiliary aerofoil,
usually sharply upturned and often sweptback, at tip of wing.
Weapon(s) system(s) officer.
Within Visual Range.