The jetted flap pocket is standard for hip pockets, with a small strip of fabric taping the top and bottom of the slit for the pocket.

The jet flap system consisted of a series of sixteen nozzles arranged along the trailing edge of the wing, which were fed about half of the engine's hot exhaust gases.

Implementation approaches include jet flaps, transverse or cross-flow fans (CFF), multiple small engines (typically gas turbines), or multiple fans driven by a smaller number of engine cores.

The Hunting H.126 was a British experimental aircraft designed and built by Hunting Aircraft in order to test the concept of blown flaps, or as they were known in Britain, "jet flaps".

The principle of the jet flap had been proposed and patented in 1952 by the National Gas Turbine Establishment and thereafter investigated by the NGTE and the Royal Aircraft Establishment.

The effectiveness of wings can be greatly improved by using blow-type flow control, while if the intensity of the blown jet is high enough, even the lift predicted by potential flow theory can be surpassed (i.e. the jet flap effect) due to the initiation of supercirculation.