Editing Flight control surfaces (section)

=== Flaps ===
{{main|Flap (aircraft)}}

[[Flap (aircraft)|Flaps]] are mounted on the trailing edge on the inboard section of each wing (near the wing roots). They are deflected down to increase the effective curvature of the wing. Flaps raise the [[Lift coefficient|maximum lift coefficient]] of the aircraft and therefore reduce its stalling speed.<ref>Clancy, L.J. ''Aerodynamics'' Chapter 6</ref>  They are used during low speed, high angle of attack flight including take-off and descent for landing. Some aircraft are equipped with "[[flaperon]]s", which are more commonly called "inboard ailerons"{{Citation needed|date=October 2007}}.  These devices function primarily as ailerons, but on some aircraft, will "droop" when the flaps are deployed, thus acting as both a flap and a roll-control inboard aileron.