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Klimov M-120

1940s Soviet piston aircraft engine

Field	Value
name	M-120
engine_type	Liquid-cooled, 18-cylinder, three-block inline engine
national_origin	Soviet Union
manufacturer	Klimov
first_run	1940
produced	1939–40
number_built	5?
developed_from	Klimov M-103

The Klimov M-120 was a Soviet prototype 18-cylinder liquid-cooled inline aircraft engine designed during the early years of World War II. Testing did not go well and it was cancelled in 1942.

Development

The M-120 was developed by arranging three Klimov M-103A cylinder blocks in an inverted 'Y' configuration, driving a common crankshaft. It began development in 1938 and manufacture of five prototypes began in late 1939. The first prototype was completed on 30 October 1939 and began bench tests the next year. Two M-120TKs were flown in a prototype Ilyushin DB-4 bomber in November 1940. It was submitted for its State acceptance trials in August 1941, but the main connecting rod and the supercharger both broke down and the tests were not completed. The project was cancelled in 1942.

Variants

;M-120 :1600 hp, weight of 850 -. ;M-120TK :1600 hp, weight of 950 kg, fitted with turbo-supercharger. ;M-120UV :1800 hp. Version with a long shaft to the remote reduction gear. ;M-120UV-TK :A 1940 project to combine the two variants.

Specifications (M-120TK)

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References

Notes

Bibliography

References

Kotelnikov, pp. 145–46

Info: Wikipedia Source

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