As with many things in technological development, identifying the most revolutionary designs depends in part on what aspects one wants to stress. And when it comes to commercial aircraft engines, it ...

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 ...

It began with one man’s vision that the best airplane can only be designed around the best engine. That philosophy of Pratt & Whitney founder Frederick B Rentschler still applies today as the business ...