Heinkel HE 57
|Heinkel HE 57 Heron|
HE 57 "Heron", exhibited at the Stockholm International Aero Show 1931
|Number of pieces:||
The Heinkel HE 57 “Heron” was Ernst Heinkel's first attempt to gain a foothold in metal aircraft construction. The first version of the amphibious aircraft was too heavy and could not take off from the water during the "taxiing tests" in April 1930.
In December 1930, the completely redesigned model went into flight testing again and was approved in May 1931. However, the machine was not a commercial success, Heinkel was only able to sell one copy (to the German Aviation School on Sylt ). After a crash landing on July 30, 1937, the "Heron" was scrapped.
|Wing area||39.20 m²|
|Height (including chassis)||4.50 m|
|drive||an air-cooled 9-cylinder radial engine Pratt & Whitney Wasp with 425 HP (313 kW)|
|Top speed||185 km / h at sea level|
|Empty mass||1820 kg|
|Flight mass||2600 kg|
|Rise time||8 min at 1000 m|
- Volker Koos: Ernst Heinkel Flugzeugwerke 1922–1932 . Heel, Königswinter 2006, ISBN 3-89880-502-6 , p. 119-121 .
- Volker Koos: Quite difficult ... Heinkel HE 57 “Heron”. Retrieved on November 11, 2018 (contribution by the German Aviation History Working Group).