Klimov M-103

M-103
Klimov M-103 engine recovered from Tupolev SB wreck
Type V12 inline engine
Manufacturer Klimov
First run October 1936
Number built 11,681
Developed from Klimov M-100
Developed into Klimov M-105

The Klimov M-103 is a V12 liquid-cooled piston aircraft engine used by Soviet aircraft during World War II.[1]

Design and development

The M-103 was a further development of the Klimov M-100 engine that was itself a licensed copy of the French Hispano-Suiza 12Ybrs. It differed from both engines in a number of aspects such as increased compression ratio, increased supercharger ratio, increased rpm's, strengthened cylinder blocks, a new crankshaft, a more aggressive camshaft, and flat bottomed cylinders. Developed in 1936 it was ready for testing in October 1936. The first two models failed testing due to cracked cylinder blocks and the engine was resubmitted for testing in 1937. After passing its trials it was cleared for production in 1938 and 11,681 were produced until 1942 at its factory in Rybinsk. The M-103 was followed by the M-105.

Variants

Applications

Specifications (M-103A)

Data from [2]

General characteristics

Components

Performance

See also

Related development


Related lists

References

Notes

  1. Gunston 1989, p.90.
  2. Valtion Lentokonetehdas (1943). Hispano-Suiza 12Y-31, M-103, M-105. Rakenneselostus, Käyttö – Ja Huoltoohjeet [“Valtion Lentokonetehdas” State Aircraft Factory: Hispano-Suiza 12Y-31, M-103, M-105. Use and Maintenance Instructions.] Helsinki: Maintenance and spare technical manual of the Finnish Government. The National Library of Finland.
  3. During the war, the Soviet Air Force used automotive gasoline and all kind of mixtures without troubles.

Bibliography

  • Gunston, Bill. World Encyclopedia of Aero Engines. Cambridge, England. Patrick Stephens Limited, 1989. ISBN 1-85260-163-9
  • Kotelnikov, Vladimir (2005). Russian Piston Aero Engines. Crowood Press Ltd. pp. 137–138.