The Sportavia-Pützer SFS 31 Milan is a single-seat motor glider that was produced in Germany in the early 1970s.

The Milan was created by essentially combining the fuselage of the Fournier RF 4 with the wings of the Scheibe SF-27.

[2][3][4] The resulting aircraft is a conventional motorglider design, a low-wing cantilever monoplane with a nose-mounted engine.

[1][4] The SFS 31 prototype (registered D-KORO) first flew on 31 August 1969[1][4] and soon replaced the RF 4D in production at Sportavia-Pützer.

[6] In 1971, Hans Huth piloted an SFS 31 to third place in the German national motorglider competition.