World of Warbirds on MSN

Rotary vs radial aircraft engines, the circular powerplants that changed early aviation

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 ...
insider.si.edu

Pratt & Whitney R-4360-35 Wasp Major, 4-Row, Radial 28 Engine

IIIF provides researchers rich metadata and media viewing options for comparison of works across cultural heritage collections. Visit the IIIF page to learn more. Power rating: 2,088 kW (2,800 hp) at ...
Napa Valley Register

A piece of aircraft history -- Mike Nieman's Pratt & Whitney aircraft engine -- sits in St. Helena

To Mike Nieman, the smell of his large Pratt & Whitney “Wasp Major” radial aircraft engine running is “the smell of victory.” “That smell is of a working engine that made this country free,” said the ...
Napa Valley Register

'It was thrilling': Historic military aircraft engine roars to life in St. Helena

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 to power ...
insider.si.edu

Pratt & Whitney Wasp Major R-4360-B6, 4-rows, Radial 28 Engine

Bore and Stroke: 146 mm (5.8 in.) x 152 mm (6 in.) The Wasp Major was Pratt & Whitney Aircraft's last and largest piston engine. Its cylinders were in four rows, arranged in a spiral for better ...