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Heinkel He 57

From Wikipedia, the free encyclopedia
Heinkel He 57 Heron
Front view of Heinkel He 57 at Stockholm International Aero Show 1931
RoleAmphibiousflying boat
Type of aircraft
National originGermany
ManufacturerHeinkel
DesignerDr Ernst Heinkel
First flight1929-30
Introduction1930 Paris Aero Show
Number built1

TheHeinkel He 57 was a single engine amphibiousflying boat built in 1929.

Development

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The sole He 57 (factory designation HE.57) was built by theErnst-Heinkel-Flugzeugwerken atWarnemunde in 1929.[1] It was displayed at the Paris Aero Show in December 1930 and at theStockholm International Aero Show in May 1931.[2] It was purchased by the flying school atList auf Sylt who used it as a trainer.[1]

Design

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The double stepped hull was made ofaluminum. The wings used wood spars and aluminum ribs withfabric covering. The landing gear was hydraulically raised with a manual pump.[2]

Specifications Heinkel He 57

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He 57

Data fromFlight[2]unless noted

General characteristics

  • Capacity: 6
  • Length: 11.8 m (38 ft 9 in)[1]
  • Wingspan: 16.00 m (52 ft 6 in)
  • Wing area: 39.2 m2 (422 sq ft)
  • Gross weight: 2,440 kg (5,380 lb)
  • Powerplant: 1 × Pratt and Whitney Wasp Radial, 340 kW (450 hp)
  • Propellers: 2-bladed

Performance

  • Maximum speed: 195 km/h (121 mph, 105 kn)
  • Service ceiling: 3,800 m (12,500 ft)[1]
  • Time to altitude: 5 min to 1,000 m (3,300 ft)
  • Wing loading: 62.3 kg/m2 (12.75 lb/sq ft)
  • Landing speed: 93 km/h (58 mph; 50 kn)

References

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Wikimedia Commons has media related toHeinkel HE 57.
  1. ^abcdGütschow, Fred (1978).Die deutschen Flugboote. Stuttgart: Motorbuch Verlag. pp. 204–6.ISBN 3-87943-565-0.
  2. ^abc"I.L.I.S. The Stockholm International Aero Show".Flight.XXIII (22):472–4. 29 May 1931.
Heinkel aircraft
Company designations
pre-1933
HeinkelEindecker (HE) monoplanes
HeinkelDoppeldecker (HD) biplanes
RLM designations
1933–1945
Projects 1933–1945
Foreign designations
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