Republic XF-12 Rainbow
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The Republic XF-12 Rainbow was an American four-engine, all-metal prototype aircraft designed by Republic Aviation in the 1940s for aerial reconnaissance with the United States Army Air Forces. Design
XF12
XF-12 Rainbow circa 1946
The Pratt & Whitney R-4360 Wasp Major is an American 28-cylinder four-row radial piston aircraft engine designed and built during World War II. At 4,362.5 cu in, it is the largest-displacement aviatio
Republic XF-12 Rainbow
…Fuel capacity: 5,000 US gal (4,200 imp gal; 19,000 L) Powerplant: 4 × Pratt & Whitney R-4360-31 Wasp Major 28-cyl. four-row air-cooled radial piston engines, 3,250 hp (2,420 kW) each Propellers: 4-bladed Curtiss, 16 ft 1 in (4.9 m) diameter reversible-pitch…
Pratt & Whitney R-4360 Wasp Major on display at Travis Air Force Base Aviation Museum
Sectioned R-4360 Wasp Major
R-4360 cutaway
R-4360-4 on display at the Air Zoo