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225 hp radial aircraft engine From Wikipedia, the free encyclopedia
The Jacobs R-755 (company designation L-4) is a seven-cylinder, air-cooled, radial engine for aircraft manufactured in the United States by the Jacobs Aircraft Engine Company.[1]
R-755 / L-4 | |
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Jacobs R-755 installed in a Boeing-Stearman Model 75 | |
Type | Radial engine |
Manufacturer | Jacobs Aircraft Engine Company |
First run | 1933 |
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.
Data from Jane's fighting aircraft of World War II,[4] Jane's all the World's Aircraft 1938[5]
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