Object Details Manufacturer Pratt & Whitney Physical Description Type: Reciprocating, 28 cylinders, radial, air cooled, four rows Power rating: 2,424 kW (3,250 hp) at 2,700 rpm Displacement: 71.5 L (4 ...

A relic of military history roared to life on Tuesday morning in downtown St. Helena of all places. Mike Nieman fired up his Pratt & Whitney R-4360 “Wasp Major” radial engine, which was built ...