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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]

KR-21
Fairchild KR-21-B of 1930
Role	Two-seat monoplane, later biplane Type of aircraft
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

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

• NC107M[4]
• NC236V[5]
• NC954V[1]

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

• 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

На других языках

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- [en] Fairchild 21

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[ru] Fairchild 21

Fairchild 21 — одномоторный двухместный моноплан, разработанный и построенный в 1920-х годах американской компанией Fairchild Aircraft[1][2].

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