The Akaflieg Stuttgart fs24, nicknamed Phönix (German: "Phoenix"), was a glider designed and built in West Germany from 1951.

The development of modern aerofoil sections for gliders required very accurate reproduction with smooth surfaces, using tolerances that were extremely difficult to achieve using conventional wood or metal construction, but could be achieved by using composite materials laid up in a mould.

The design of the fs24 was started at Akaflieg Stuttgart, (Akademische Fliegergruppe - academic flying group), by Richard Eppler and Hermann Nägele in 1951.

The first flight was made on 27 November 1957, and good performance and excellent handling were demonstrated, especially in weak thermal conditions.

[3] Data from The World's Sailplanes:Die Segelflugzeuge der Welt:Les Planeurs du Monde[4][5]General characteristics Performance