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Jacobs R-755

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Template:Infobox Aircraft Engine

The Jacobs R-755 (company designation L-4) was a seven-cylinder, air-cooled, radial engine for aircraft manufactured in the United States by the Jacobs Aircraft Engine Company.[1]

Design and development

The R-755 was first run in 1933 and was still in production in the 1970s. With a bore and stroke of 5.25 in × 5 in (133 mm × 127 mm) the displacement was 757 cu in (12.4 L), power ranged from 200 hp to 350 hp (150 kW - 260 kW). The engine features steel cylinders with aluminum-alloy cylinder heads. An R-755E variant was developed for use in helicopters.


Engines on display

Specifications (R-755-A1)


See also

Related lists



  1. Gunston 1989, p.85.
  2. Arkansas Air Museum - Jacobs R-755 Retrieved: 31 January 2009


  • Gunston, Bill. World Encyclopedia of Aero Engines. Cambridge, England. Patrick Stephens Limited, 1989. ISBN 1-85260-163-9
  • Jane's Fighting Aircraft of World War II. London. Studio Editions Ltd, 1989. ISBN 0-517-67964-7

External links

Wikimedia Commons has media related to:

Template:Jacobs aeroengines Template:US military piston aeroengines

it:Jacobs R-755

This article is licensed under the GNU Free Documentation License.
It uses material from the Wikipedia article "Jacobs R-755".