Jacobs R-755

R-755 / L-4
Jacobs R-755 on display at the Evergreen Aviation & Space Museum
TypeRadial engine
ManufacturerJacobs Aircraft Engine Company
First run1933

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.