flaperon

thumb|Boeing 777 flaperon thumb|Flaperons on a Denney Kitfox Model 3, built in 1991 thumb|right|Flaperons (Junkers style) on an [[ICP Savannah Model S, built in 2010]] thumb|Operation of the flaperon of a Boeing 777 during left and right banking A flaperon (portmanteau of flap and aileron) on an aircraft wing is a type of control surface that combines the functions of both flaps and ailerons. Some kitplanes have flaperons for simplicity of manufacture, while large commercial aircraft such as the Boeing 747, 767, 777, and 787 may have a flaperon between the flaps and aileron. The 787 has a SpoileFlaperon that combines the action of spoilers, flaps and ailerons into one control surface.

==Operation== In addition to controlling the roll or bank of an aircraft, as do conventional ailerons, both flaperons can be lowered together to reduce stall speed, similarly to a set of flaps.