Heinkel HE 10

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Heinkel HE 10
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Type: Swimmer - school and touring aircraft
Design country:

German EmpireGerman Empire German Empire

Manufacturer:

Heinkel

First flight:

1928

Production time:

1928

Number of pieces:

2

The Heinkel HE 10 is a German floatplane that was developed and built by the Heinkel aircraft factory in Warnemünde in the 1920s. The abbreviation HE stands for "Heinkel monoplane".

development

The HE 10 was created in 1928 on behalf of the German Commercial Aviation School (DVS) on the basis of the HE 6 float plane from 1927, which was developed for an Atlantic crossing and was intended as a long-haul aircraft for the training of navigators and as a touring aircraft. In the same year two pieces with the serial numbers 317 and 318 were completed and the first of them was presented to the public from October 7th to 28th at the ILA . During the test, some shortcomings came to light, the vibrations of the tail unit and the instrument panel, a leaking cabin, lack of longitudinal stability in flight and poor maneuverability on the water. The latter could be remedied by an enlarged rudder that was pulled down and an enlarged horizontal stabilizer. After eliminating the remaining complaints, DVS took over both HE 10s in June and August 1929 and put them into service on their Warnemünde base as D-1662 and D-1731 . They subsequently proved themselves well on flights for radio and navigation training. However, the D-1731 had a serious accident on January 14, 1931. When starting a training flight in seas 2 to 3, a propeller tip broke off due to water contact and the engine was partially torn from its suspension. The fully staffed with five people plane could relatively unscathed emergency landing , but the recovery proved to be the stronger for waves due to difficult. After several times the tow broke, it drove eventually ashore and suffered there further damage by the station's launch , which was become rudderless through to be wound around the screw torn tow, drove also on land and pressed against the HE 10th

construction

The HE 10 is a semi- cantilever low-wing aircraft in composite construction . The fuselage consists of a fabric-covered tubular steel frame with a closed cabin for three to five seats. The engine area of ​​the bow is planked with aluminum, the cabin is made of duralumin with cellon windows . The wing frame is formed by two wooden box spars with spruce straps and frames made of plywood . The outer cladding consists mostly of fabric covering, only the underside of the fuselage between the spars and the front edges are made of plywood. The tail unit consists of fabric-covered tubular steel. It includes an in flight adjustable horizontal stabilizer and balanced rudder. The float is formed by two wooden floats placed in parallel, the underside of which is single-tiered and flat in the front area and comes out strongly keeled towards the rear .

Technical specifications

Parameter Data (HE 10a) Data (HE 10b)
crew 5 3
span 18.2 m
length 13.1 m
height 4.68 m
Wing area 60.93 m²
Preparation mass 2540 kg 2490 kg
payload 460 kg 172 kg
Takeoff mass 4800 kg 4810 kg
Engine a liquid-cooled, twelve-cylinder - four stroke - V engine
Type BMW VI 7.3ZU BMW VI 5.5
Starting power
nominal power on the ground		 750 hp (552 kW) at 1700 rpm,
620 hp (456 kW) at 1625 rpm		 630 hp (463 kW) at 1650 rpm,
600 hp (441 kW) at 1620 rpm
Top speed close
to the ground		 246 km / h 185 km / h
Landing speed 106 km / h
Climbing time
to an altitude of 1000 m		 5.6 min 11.7 min
Range 3000 km 5200 km
Service ceiling 4000 m

literature

  • Volker Koos: Ernst Heinkel Flugzeugwerke 1922–1932 . Heel, Königswinter 2006, ISBN 3-89880-502-6 .
  • Volker Koos: Aviation between the Baltic Sea and Breitling . Warnemünde sea and land airfield 1914–1945. Transpress, Berlin 1990, ISBN 3-344-00480-8 .
  • Helmut Stützer: The German military aircraft 1919–1934 . E. S. Mittler & Sohn, Herford 1984, ISBN 3-8132-0184-8 .

Individual evidence

  1. ^ Karl Ries: Research on the German aviation role. Part 1: 1919-1934 . Dieter Hoffmann, Mainz 1977, ISBN 3-87341-022-2 , p. 123 and 127 .
  2. ↑ a b Stützer, p. 196