Jacobs R-830

R-830
Type	Radial engine
Manufacturer	Jacobs Aircraft Engine Company
First run	1935
Developed from	Jacobs R-755
Developed into	Jacobs R-915

The Jacobs R-830 or L-5 is a seven-cylinder, air-cooled, radial engine for aircraft manufactured in the United States, production started in 1935.

The R-830 was effectively an enlargement of the R-755 with strengthened stressed parts. With a bore and stroke of 5.0 in × 5.5 in (140 mm × 127 mm) the displacement was 831 cu in (13.6 L), takeoff power was around 285 hp (212 kW). The engine features steel cylinders with aluminum-alloy cylinder heads.

Data from FAA TCDS

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