In the Heinkel He 112 , a 518 kW hp Rolls-Royce Kestrel Mk IIS was fitted .
Its only features from an older era were its open cockpit and fuselage spine behind the headrest , which were included to provide excellent vision and make the biplane-trained pilots feel more comfortable. The first prototype , He 112 V1 , was completed on 1 September 1935 , but as the Junkers Jumo 210 engine unavailable , a 695 hp Rolls-Royce Kestrel Mk IIS was fitted .
Heinkel He 112