inserted suction flap

flap suction

suction flap

inserted liner

split flap / split-flap

flap slat CTL lever / flap and slat control lever

trailing edge flap (T.E. flap)

air suction valve

turbine blade suction side

suction

suction face of a propeller blade

suction face of an aerofoil section

boundary layer suction

dive flap

flap

flap damping

flap plate (of gun shield)

air flap

brake flap

cooling flap

cowl flap

differentially operated flap

double-slotted flap

engine cowl flap

extended flap

extension flap

flap extension

flap carriage

flap deflector

flap tab

flap track

flap track fairing

full-span flap