Flexible flap for an airfoil

摘要

This invention relates to area changing trailing edge flaps for airfoils such as wings. This invention provides a roller retractable flexible sheet flap, which when deployed is supported by deployed airfoil mounted flap side support member(s), to which the side edge(s) of the flexible sheet flap are attached by a slide fastener. Slotted and blown flap variants of the invention, as well as othe variants, are also described and claimed.