Heinkel He 49

The Heinkel He 49 was a German single-bay, single-seat biplane of mixed construction armed with two machine guns. Four variants were made, the He 49a, He 49b, He 49c and He 49d. Its original Heinkel designation was HD 49, before the Reichsluftfahrtministerium allocated its own designations. The first prototype, the He 49a, flew in November 1932, and the second followed in February 1933 with a fuselage 400 millimetres longer and a BMW VI 6.0 V-12 engine. The He 49b was also built as a floatplane, and the later prototype became the Heinkel He 51. The He 49b had a wingspan of 11 metres, a 510 kilowatt liquid-cooled engine and a maximum speed of 325 kilometres per hour, with two synchronised 7.92 millimetre MG 17 machine guns.