Heinkel HD 21
The Heinkel HD 21 was a trainer built in Germany during the 1920s. It was a conventional single-bay biplane with staggered wings braced with N-type interplane struts. The main units of the fixed, tailskid undercarriage were linked by a cross-axle, and the aircraft had three open cockpits in tandem, although one of these was typically faired over. The HD 29 of 1925 was essentially similar, but was purely a two-seater. One HD 21 (registered SE-ACY) was flown as an air ambulance by Carl Gustaf von Rosen for the Red Cross during the Italian invasion of Abyssinia in 1935. Others were flown by the Reichswehr at the clandestine aviation training facility in Lipetsk.
Summary from Wikipedia licensed under CC BY-SA.
- Manufacturer
- Arado Flugzeugwerke
- Country of origin
- German Reich
- First flight
- 1924-01-01
Specifications
- Cruise speed
- 90 kt
- Max speed
- 90 kt
- Rate of climb
- 530 ft/min
- Max takeoff weight
- 2,160 lb
- Empty weight
- 1,500 lb
- Powerplant
- Mercedes D.I
- Engines
- 1
- Seats
- 2
- Length
- 23 ft
- Wingspan
- 34 ft
- Height
- 10 ft
Specifications are approximate and may vary by variant. Compiled from Wikipedia (CC BY-SA).
Reference and training only. Specifications vary by variant — consult the manufacturer and the official documents.