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. 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

The KR-21-A was a low-wing braced monoplane with two open tandem cockpits and powered by an 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] 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 (KR-21-A monoplane)

Data from [2]

General characteristics




  1. ^ a b c "1930 Kreider-Reisner KR-21B - N954V". EAA.
  2. ^ a b c d Orbis 1985, p. 1640
  3. ^ "American airplanes – Cessna". 4 April 2009. Retrieved 2009-12-29.
  4. ^ "FAIRCHILD KR-21 NC/NX107M". Davis-Monthan Airfield Register. Archived from the original on 2016-12-30. Retrieved 2015-02-12.
  5. ^ "Fairchild 21 NC236V". 1998.
  6. ^ Doug Robertson (2006). "The Fairchild 22 Design".


  • The Illustrated Encyclopedia of Aircraft (Part Work 1982–1985). Orbis Publishing.