The Jacobs Aircraft Engine Company began in 1930 in Camden, New Jersey, later moving to Pottstown, Pennsylvania where this engine was built beginning in 1934. It had was equipped with a battery and magneto ignition system, but had other features common to earlier Jacobs’s models.

Page Industries of Oklahoma acquired Jacobs in the 1970s, but only continued manufacturing aircraft engines for a few years. This military version of the engine, the R-755-9, powered the Waco PG-3/A; Cessna AT-17A/B/C; and Cessna UC-78/A/B/C. Other military R-755 engine models powered aircraft such as the Kellett YG-1 autogiro and Stearman PT-18 primary trainer.

 Display Status

This object is not on display at the National Air and Space Museum. It is either on loan or in storage.
Object Details
Date Circa 1941 Country of Origin United States of America Type PROPULSION-Reciprocating & Rotary Manufacturer Jacobs Aircraft Engine Company (Pottstown, Pennsylvania)
 Physical Description Type: Reciprocating, 7 cylinders, radial, air-cooled Power rating: 183 kW (245 hp) at 2,200 rpm Displacement: 12.4 L (757 cu in) Bore and Stroke: 133 mm (5.25 in.) X 127 mm (5.0 in.) Weight: 245 kg (541 lb) Dimensions Storage: 160 × 149.9 × 147.3cm (63 × 59 × 58 in.)
Overall: 541lb. (245.4kg)
 Materials Magnesium
Steel
Copper Alloy
Rubber
Paint
Aluminum
Ceramic
Leather
Plastic
 Inventory Number A19860281000 Credit Line Gift of San Jose State University Data Source National Air and Space Museum Restrictions & Rights Usage conditions apply
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