Mikulin AM-37

"AM-37" redirects here. For the United States Navy minesweeper, see USS Sanderling (AM-37).

|} The Mikulin AM-37 was a Soviet aircraft piston engine designed prior to Russia's entry into World War II. An improved version of the Mikulin AM-35 V-12 engine, it was only produced in small numbers because of its unreliability.

Development[]

Design work on a development of the AM-35 with boosted supercharging and an intercooler positioned behind the supercharger began on the factory's initiative in December 1939. A batch of ten prototypes was completed in 1940 and bench-testing began on 5 January 1941. It passed its State acceptance trials the following April and was approved for production. It was tested in a variety of aircraft, but proved to be unreliable and prone to overheating. Factory No. 24 in Moscow built only twenty-nine AM-37s, as the new engine was designated, in 1941 before the German advance forced the factory to evacuate in October. Mikulin had been unable to resolve the issues with the AM-37 in the meantime and production was not resumed.^[1]

Variants[]

AM-37A: Planned version to be tested in February 1940, but no information if it was tested or it was even completed. 1,600 hp (1,200 kW) and a weight of 850 kg (1,870 lb).
AM-37TK: TK for toorbokompressor. Planned version with a turbocharger, no further information known.
AM-37P: P for Pushechnyy or cannon. A 1940 project for a model with an autocannon mounted in the space between the cylinders, firing through a hollow reduction-gear shaft. No further information available.
Am-37u/v or AM-37UV: UV for udlinyonniy val or lengthened shaft. An engine with a lengthened shaft and remote gearing for use in the Gudkov G-1 fighter that carried the engine behind the pilot. Ordered developed in 1940 and design work started in 1941, but it was not completed.

Applications[]

Specifications[]

Data from Kotelnikov, Russian Piston Aero Engines

General characteristics

Type: supercharged, liquid-cooled, V12 engine
Bore: 160 mm (6.3 in)
Stroke: 190 mm (7.5 in)
Displacement: 46.66 l (^{[convert: unit mismatch]})
Dry weight: 885 kg (1,951 lb)
Designer: Alexander Mikulin

Components

Supercharger: single-speed geared centrifugal supercharger
Cooling system: liquid-cooled

Performance

Power output: 1,500 hp (1,119 kW)
Compression ratio: 7.0:1
Power-to-weight ratio: 0.77 hp/lb (1.26 kW/kg)

References[]

Notes[]

↑ Kotelnikov, p. 110

Bibliography[]

Kotelnikov, Vladimir (2005). Russian Piston Aero Engines. Ramsbury, Marlborough: Crowood Press. ISBN 1-86126-702-9.

All or a portion of this article consists of text from Wikipedia, and is therefore Creative Commons Licensed under GFDL.
The original article can be found at Mikulin AM-37 and the edit history here.

[1] Kotelnikov, p. 110

[1]