The Kreider-Reisner KR-21-A is a 1928 American two-seat biplane. It was designed and built by the Kreider-Reisner Aircraft Company of Hagerstown, Maryland. Fairchild Aircraft took over Kreider-Reisner in 1929 and continued to build them, as the Fairchild KR-21, later the Fairchild 21.

Design and development

Designed by Fred Seiler Jr., H.L. Puckett states "over 200 were built in 6 different models."

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. It was of mixed construction and had a fixed tailwheel landing gear and was fitted with dual controls.

The KR-21-B was a more powerful biplane development, using a 125 bhp Kinner B-5 engine.

Specifications (KR-21)

Data from

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

Bibliography


Fairchild KR21A

Fairchild 24 Price, Specs, Photo Gallery, History Aero Corner

Fairchild AT21 Gunner Price, Specs, Photo Gallery, History Aero Corner

21st Fairchild Composite Squadron, Civil Air Patrol Fairchild Air

FAIRCHILD SENTRY 21 Final Testing Equipment used for sale price 137544