Heinkel He 72 Kadett

The Heinkel He 72 Kadett (Cadet) was a German single-engine biplane trainer of the 1930s, designed in 1933 to meet an official requirement for a basic trainer. It was a single-bay biplane of fabric-covered metal construction with open cockpits, a staggered wing, a strut-braced tail unit and a fixed tailskid undercarriage. The prototype used a 104 kW Argus As 8B engine, which the He 72A kept in early batches before moving to the 112 kW As 8R. The He 72B was built as the B-1 landplane and as the BW Seekadett, a twin-float seaplane, and 30 He 72B-3 Edelkadett civil adaptations were made. Operators included the Luftwaffe, the National Socialist Flyers Corps and the air forces of Bulgaria, Czechoslovakia and Slovakia. Pilots nicknamed it the Zitterrochen, the Quivering Ray, because it shook so much.