extension flap

flap extension

split flap / split-flap

flap slat CTL lever / flap and slat control lever

trailing edge flap (T.E. flap)

barrel extension

extension of military service term

trunnion extension

extension for butt stock

flank extension beyond enveloping force

airstairs extension

extension

landing gear extension

leading edge extension

shaft end extension

trailing edge extension

wing dogtooth extension

extension assembly

advanced extension course

extension of reflected signal

Service Extension Act

slat extension

radio-relay extension line

dive flap

flap

flap damping

flap plate (of gun shield)

air flap

brake flap

cooling flap

cowl flap

differentially operated flap

double-slotted flap