Production. B-25 bombers. Mounting a 1700-horsepower Wright Whirlwind engine to the fire wall of a B-25 bomber in a Western aircraft plant. This engine is one of the two powerful units which carry the B-25 through brilliant performances up to altitudes of 25,000 feet. General Doolittle has called this ship the best military plane in existence. Fairfax bomber plant, Kansas City