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Franklin 4AC-199/O-200

The Engine  Specifications
In 1941, Franklin introduced four new engines based on a 4.25 x 3.5 inch cylinder.  These engines were the 4-cylinder 4AC-199, the 6-cylinder 6AC-298, the 8-cylinder 8AC-398 and the 12-cylinder 12AC-596.

The U.S. military gave the 4AC-199 the designation O-200.  Production ended in 1945.

4-cylinder, horizontally-opposed, air-cooled piston engine
Displacement: 199 cubic inches
(3.3 liters)
Bore x stroke: 4.25 x 3.5 inches
 Models  Used by
O-200-5: 100 hp (74 kW)
Interstate L-6
 Related Pages
more about Franklin

page updated 03 April 2005



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Kenneth W Shanaberger 2000 - 2010