Fischer and Jacobs began operations in Philadelphia, Pennsylvania in 1927 and moved soon to Camden, New Jersey as the Aircraft Engine Corp. It became the Jacobs Aircraft Engine Co. somewhat later and moved to Pottstown, Pennsylvania. After WWII, they were a division of Republic Industries, Inc. [not Republic Aircraft] (AY46). The company is best known for its radial engines, but an early development was the two-stroke cycle, two-cylinder Model B-1 described below, which saw limited use. For the post-WWII industry, they developed the four-stroke cycle HOAE designs described here.
O-35 (2-Stroke) -- {3.0 / 2.5 / 35.3} / {76.2 / 63.5 / 579}
2cyl; Model B-1; 20hp@2500rpm-25@3000; 1929-1930; Wt = 60#; TC = none.
Air-cooled, single-ignition engine.
Aerofiles; Ae39.
Applications: (US) Waco LAJ powered glider.
O-200 -- {4.0 / 4.0 / 201.1} / {101.6 / 101.6 / 3295}
Same stroke as O-240 and O-360.
4cyl; O-200A; 85hp@2350rpm; 1946-1947; Wt = 190#; TC = none.
Air-cooled engine.
W47.
Applications: None found.
O-240/OL-240 -- {4.375 / 4.0 / 240.5} / {111.1 / 101.6 / 3941}
Same bore and stroke as O-360.
4cyl; O-240A air cooled; 100hp@2300rpm; 1946-1951; Wt = 200#; TC = none.
4cyl; O-240L liquid cooled; 100hp@2300rpm; 1946-1951; Wt = 220#; TC = none.
Air- and liquid-cooled versions were built and tested, but only the air-cooled version was marketed; fuel injection was optional. Jacobs used the O-240EG liquid-cooled version in its JH-25 electrical generator set for ground or marine use (AY52).
AY46,52; J47toJ50-51; W47toW48.
Applications: None found.
O-360/OL-360 -- {4.375 / 4.0 / 360.8} / {111.1 / 101.6 / 5912}
Same bore and stroke as O-240.
6cyl; O-360A air cooled; 165hp@2400rpm; 1946-1950; Wt = 300#; TC = none.
6cyl; O-360L liquid cooled; 165hp@2400rpm; 1946-1950; Wt = 345#; TC = none.
Air- and liquid-cooled versions were built and tested, but only the air-cooled version was marketed; fuel injection was optional. The O-360L was the first model in the O-240/O-360 series to be built and tested.
AY46; J47toJ49-50; W47toW48.
Applications: None found.