PRATT & WHITNEY R-1340-AN-1 ENGINE
The Pratt & Whitney R-1340 Wasp was an aircraft engine of the reciprocating type that was widely used in American aircraft from 1920 onwards. It was the Pratt & Whitney Aircraft Company’s first engine and the first of the famed Wasp series of engines and featured a single-row, nine-cylinder, air-cooled engine of radial design.
The R-1340-AN1 engine variant was used to power the North American Harvard used by the South African Air Force and consisted of a 550hp (410kW), 600hp (447kW) that displaced 1,344 cubic inches (22L). The bore and stroke were both 5.75in (146mm). A total of 34,966 of these engines were manufactured.