An RC plane flaperon is a form of an aircraft control surface. It is a perfect combination of ailerons and flaps. Flaps are used to build, lift or drag depending on how it is used, while ailerons stop the plane from sloping over. ... However, flaperons can both be lowered to work as a set of flaps.

What do Flaperons do?

Flaperons are control surfaces on the wing of an aircraft that help to stabilize the plane during low-speed flying during take-off and landing. Flaperons combine the functions of flaps and ailerons. Flaps are used to create lift or drag depending on their use, while ailerons keep the plane from rolling over.

What planes have Flaperons?

Such a surface is called a flaperon. It is essentially a full-span droopable aileron. Flaperons are used on the Zenith STOL airplanes and the RV-12 LSA. A flaperon system is somewhat simpler than a flap plus drooping aileron system, but it has similar issues with adverse yaw.