Engineering:Fairchild 21
| KR-21 | |
|---|---|
| |
| Fairchild KR-21-B of 1930 | |
| Role | Two-seat biplane |
| National origin | United States |
| Manufacturer | Fairchild Aircraft |
| Designer | Otto C. Koppen |
| First flight | 1928 |
The Kreider-Reisner KR-21-A was a 1928 United States two-seat biplane. It was designed and built by the Kreider-Reisner Aircraft Company of Hagerstown, Maryland.[1] Fairchild Aircraft took over Kreider-Reisner in 1929 and continued to build them, as the Fairchild KR-21, later the Fairchild 21.[2][3]
Design and development
Designed by Fred Seiler Jr., H.L. Puckett states "over 200 were built in 6 different models."[4]
The KR-21-A was a wire braced biplane with two open tandem cockpits and powered by a 100 hp (60 kW) Kinner K-5 radial piston engine.[2] It was of mixed construction and had a fixed tailwheel landing gear and was fitted with dual controls.[2]
The KR-21-B was a more powerful biplane development, using a 125 bhp Kinner B-5 engine.[1]
Specifications (KR-21)
Data from [2]
General characteristics
- Crew: 2
- Length: 21 ft 6 in (6.55 m)
- Wingspan: 28 ft 3 in (8.61 m)
- Wing area: 139 sq ft (12.9 m2)
- Empty weight: 755 lb (342 kg)
- Max takeoff weight: 1,250 lb (567 kg)
- Powerplant: 1 × Kinner K-5 5-cylinder radial piston engine, 90 hp (67 kW)
Performance
- Maximum speed: 105 mph (169 km/h, 91 kn)
- Cruise speed: 90 mph (140 km/h, 78 kn)
- Range: 425 mi (684 km, 369 nmi)
- Service ceiling: 9,440 ft (2,880 m)
References
Notes
- ↑ 1.0 1.1 "1930 Kreider-Reisner KR-21B - N954V". http://www.eaa.org/en/eaa-museum/museum-collection/aircraft-collection-folder/1930-kreider-reisner-kr-21b---n954v.
- ↑ 2.0 2.1 2.2 2.3 Orbis 1985, p. 1640
- ↑ "American airplanes – Cessna". www.aerofiles.com. 4 April 2009. http://aerofiles.com/_fair.html.
- ↑ Puckett, H.L. (1980). Sherman Fairchild's PT-19: Cradle of Heroes. Flambeau Lith Corporation. pp. 10-11.
Bibliography
- The Illustrated Encyclopedia of Aircraft (Part Work 1982–1985). Orbis Publishing.
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