avia.wikisort.org - Aeroplane

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.

HD 21 and HD 29
Role	Civil trainer Type of aircraft
National origin	Germany
Manufacturer	Heinkel
First flight	1924

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.

Specifications

General characteristics

• Crew: Two, pilot and instructor
• Length: 7.25 m (23 ft 9 in)
• Wingspan: 10.60 m (34 ft 9 in)
• Height: 3.05 m (10 ft 0 in)
• Wing area: 27.8 m² (299 sq ft)
• Empty weight: 680 kg (1,500 lb)
• Gross weight: 980 kg (2,160 lb)
• Powerplant: 1 × Mercedes D.I , 75 kW (100 hp)

Performance

• Maximum speed: 135 km/h (103 mph, 90 kn)
• Rate of climb: 2.7 m/s (530 ft/min)

Armament

• 1 × .22 LR caliber built in machine pistol
• 2 × 100 .22 LR caliber links

References

• Taylor, Michael J. H. (1989). Jane's Encyclopedia of Aviation. London: Studio Editions. p. 498. ISBN 0-7106-0710-5.
• "The Round-Germany Flight". Flight: 321–22. 28 May 1925. Retrieved 2008-04-23.

На других языках

---

[de] Heinkel HD 21

Die Heinkel HD 21 war ein deutsches Schulflugzeug der Ernst Heinkel Flugzeugwerke. Das Kürzel HD steht für „Heinkel Doppeldecker“.

---

- [en] Heinkel HD 21

---

[it] Heinkel HD 21

L'Heinkel HD 21 fu un aereo da addestramento biposto, monomotore e biplano, sviluppato dall'azienda aeronautica tedesca Ernst Heinkel Flugzeugwerke nei primi anni venti del XX secolo.

---

[ru] Heinkel HD 21

Хейнкель HD 21 (нем. Heinkel HD 21) — немецкий учебно-тренировочный самолёт. На самолёте стоял мотор Mercedes мощностью 120 л. с. Кроме того, HD 21 стал первым в серии двух-трёхместных спортивных и учебно-тренировочных самолётов основной подготовки лётчиков.[1]

---

---