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 ...

It stands unobtrusively in the Early Flight gallery on the ground floor of the National Air and Space Museum (NASM). Look below and just beyond the 1894 glider flown by aviation pioneer Otto ...

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 ...

Bore and Stroke: 117 mm (4.6 in.) x 108 mm (4.3 in.) The Warner Aircraft Corporation of Detroit, Michigan built four models of similar radial air-cooled engines. Three were seven cylinder engines ...