From spinning rotary engines and their brutal side effects to the massive multi-row radials that powered bombers and fighters, this episode traces how engineers chased power through clever compromises ...

Part two of the Quest for Power series breaks down rotary and radial engines, why circular layouts solved cooling and reliability, and why they also came with nasty tradeoffs. From WWI rotaries to ...

Bore and Stroke: 127 mm (5.0 in.) x 140 mm (5.5 in.) 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 ...

Type: Reciprocating, 14 cylinders, 2 rows, geared, supercharged, radial, air-cooled Power rating: 649 kW (870 hp) at 2,520 rpm Displacement: 31.3 L (1,904 cu in.) Bore and Stroke: 140 mm (5.50 in.) x ...