Kinner B-5

B-5
A Kinner B-5 on display at the Old Rhinebeck Aerodrome in New York, as used in their Fleet Finch biplane.
TypeRadial engine
ManufacturerKinner Airplane & Motor Corporation
Developed fromKinner K-5
Developed intoKinner R-5

The Kinner B-5 was a popular five-cylinder American radial engine for light general and sport aircraft of the 1930s.

Design and development

The B-5 was a development of the earlier K-5 with slightly greater power and dimensions. The main change was the increase in cylinder bore from 108 mm (4.25 in) to 117 mm (4.625 in) and a corresponding increase in displacement from 372 cu in (6.1 liters ) to 441 cu in (7.2 liters). One difference the B-5 had from radial engines of other manufacturers was that each individual cylinder had its own camshaft, a system also used by the contemporary Soviet-built, 520 cubic inches (8.6 L) displacement Shvetsov M-11 five-cylinder radial, while most other radial engine designs used a "cam ring" for the same purpose, connected to every cylinder's valves. The B-5 was a rough running but reliable engine. The B-5 and its derivatives were produced in the thousands, powering many World War II trainer aircraft; its military designation was R-440. The B-5 was followed by the R-5 and R-55.

Variants

B-5
Rated at 125 hp (93 kW) at 1,925 rpm.
B-54
Rated at 125 hp (93 kW) at 1,925 rpm.
R-440-1
Military version of B-5
R-440-3
Military version of B-54

Applications

Specifications (Kinner B-5)

Data from Jane's all the World's Aircraft 1938

General characteristics

Components

Performance

See also

Related development

Comparable engines

Related lists

References

  1. ↑ Mingos, Howard, ed. (1946). The Aircraft Year Book for 1946 (PDF). New York, New York: Lancair Publishers. pp. 294–295. Retrieved 13 October 2026.
  2. ↑ Wilkinson, Paul H. (1945). Aircraft Engines of the World, 1945 (Revised ed.). New York: Paul H. Wilkinson. p. 105. Retrieved 13 October 2026.
  3. 1 2 Aircraft Engine Listing. Washington, D.C.: Civil Aeronautics Administration, U.S. Department of Commerce. 15 May 1950. pp. 8–9. Retrieved 13 October 2026.
  4. ↑ Grey, C.G.; Bridgman, Leonard, eds. (1938). Jane's all the World's Aircraft 1938. London: Sampson Low, Marston & company, ltd. p. 88d.

Further reading