| | 4Reference || Heinkel He 112 (Site not responding. Last check: 2007-09-19) |
 | | He 112 V1 was completed on September 1st, 1935, but pending the unavailable Junkers Jumo 210 engine it instead mounted a 695hp Rolls-Royce Kestrel Mk.II.S. Initial test flights at the factory revealed that the drag was much higher than expected, and that the plane was not going to be as fast as originally predicted. |
 | | Meanwhile the data from the V1 factory flights was studied to discover where the unexpected drag was coming from, and the Günter brothers identified the large and thick wing as the main culprit. |
 | | Shipments of the Jumo 211 or DB601 were not even able to fulfill German needs, so export of the engine for locally built airframes was likewise out of the question. |
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