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Franklin O-425

The Engine  Specifications
Introduced in 1944, the O-425 was developed for the military and was produced through 1948.  Franklin referred to this engine as the 6A6 for aircraft and 6V6 for helicopter applications.
6-cylinder, horizontally-opposed, air-cooled piston engine
Displacement: 425 cubic inches
(6.7 liters)
Bore x stroke: 4.75 x 4.0 inches
 Models  Used by
O-425-9: 245 hp (183 kW)
Convair L-13
 Related Pages
more about Franklin

page updated 21 February 2008



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Kenneth W Shanaberger 2000 - 2010