Click to open image viewer. Power rating: 168 kW (225 hp) at 2,000 rpm Displacement: 12.9 L (788 cu in.) Bore and Stroke: 114 mm ( 4.5 in.) x 140 mm ( 5.5 in.) The J-5 Whirlwind was a cornerstone ...
Click to open image viewer. Charles Lawrance, originally a race car engine designer, built his first air-cooled aircraft engine in 1921 for a Navy contract. The 149 kW (200 hp) J-1 satisfied a Navy ...