Darmstadt D-28 "Windspiel"
Design R. Kosin, R. Schomerus in 1933/36  Profile Göttingen 535
Span 12.0 m   Wingarea 11.4 m2   Weight empty a) 54 kg b) 72 kg
Worldrecord 1934 cross country flight 240 km, Target Darmstadt - Saarbrucken 140 km at 8/3 1935 by Schnee