| 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 |
|
