Fairchild 21

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Fairchild KR-21
KR-21.jpg
Fairchild KR-21-B of 1930
Role Two-seat monoplane, later biplane
National origin United States
Manufacturer Fairchild Aircraft
Designer Otto C. Koppen
First flight 1928
Number built 2 -A[citation needed]
5 -B model, two being conversions of the -A

The Kreider-Reisner KR-21-A was a 1928 American two-seat monoplane. They were 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[edit]

The KR-21-A was a low-wing braced monoplane with two open tandem cockpits and powered by an 80 hp (60 kW) Armstrong Siddeley Genet 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] Five were produced, three built as -B models and two converted from the -A.

At least three, most of the production, survive today

The KR-21 would in turn form the basis of the KR-22 parasol-wing monoplane design.[6]

Specifications ( -A )[edit]

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 × Armstrong Siddeley Genet 5-cylinder radial piston engine, 80 hp (60 kW)

Performance

  • Maximum speed: 105 mph (169 km/h; 91 kn)
  • Cruise speed: 90 mph (78 kn; 145 km/h)
  • Range: 425 mi (369 nmi; 684 km)
  • Service ceiling: 9,440 ft (2,877 m)

References[edit]

Notes
  1. ^ a b c "1930 Kreider-Reisner KR-21B - N954V". EAA. 
  2. ^ a b c d Orbis 1985, p. 1640
  3. ^ "American airplanes – Cessna". www.aerofiles.com. 4 April 2009. Retrieved 2009-12-29. 
  4. ^ "FAIRCHILD KR-21 NC/NX107M". Davis-Monthan Airfield Register. 
  5. ^ "Fairchild 21 NC236V". 1998. 
  6. ^ Doug Robertson (2006). "The Fairchild 22 Design". airport-data.com. 
Bibliography
  • The Illustrated Encyclopedia of Aircraft (Part Work 1982–1985). Orbis Publishing.