Heinkel HE 57

Heinkel HE 57 Heron
HE 57 "Heron", exhibited at the Stockholm International Aero Show 1931
Type:	single-engine amphibian
Design country:	German Empire
Manufacturer:	Heinkel
Commissioning:	1931
Number of pieces:	1

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.

Technical specifications

Heinkel HE 57, Stockholm International Aero Show, May 29, 1931

Heinkel HE 57, Stockholm International Aero Show, May 29, 1931

Parameter	Data
length	11.85 m
span	16.00 m
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
Payload	780 kg
Flight mass	2600 kg
Rise time	8 min at 1000 m

See also

• List of aircraft types

literature

• Volker Koos: Ernst Heinkel Flugzeugwerke 1922–1932 . Heel, Königswinter 2006, ISBN 3-89880-502-6 , p. 119-121 .

Web links

Commons : Heinkel HE 57  - Collection of images, videos and audio files

• Volker Koos: Quite difficult ... Heinkel HE 57 “Heron”. Retrieved on November 11, 2018 (contribution by the German Aviation History Working Group).