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Published on Dec 1, 2011
1/5 scaled down version of the full size Pratt & Whitney R-2800 Double Wasp 18 cylinder radial engine. Although every detail is not exactly to scale it is close enough to impress most. Prints & plans are sold by Lee Hodgson at www.agelessengines.com. The radial engine in this video was machined and built by my father (Heller Davis). using all raw materials with exception of one aluminum domed shape casting on the back of the engine. Raw materials used: Cylinders: L12 leaded steel, Pistons: 2024 aluminum, Rods: 6061-T6 aluminum, Rings: Cast iron, Valves: stainless, Most internal parts stainless, Bearings: ball & bronze. Engine specs: 1. inch bore, 1.125 inch stroke, 6.7 to 1 compression ratio, 15.90 cubic inch displacement, 260. cc's, Horse power unknown, weight: 18.750 lbs, Engine measures 11.250 inches in Diameter, 11.750 inches in length, Five main bearings. Pressurized oil System with two pumps, delivery & scavenger. Prop size: 32x10.
1,100 hours of machining and building, Completed in just a little over five months. Started at the end of April finished the first of October, 2011. The full size R-2800 was used to power several types of fighters and medium bombers during the war, notably the US Navy's F4U Corsair, with the first prototype Corsair becoming the first-ever US fighter plane to exceed 400 mph in level flight during October 1940, the Corsair's naval rival, the Grumman F6F Hellcat, the US Army Air Forces P-47 Thunderbolt, and the twin-engined B-26 Marauder & A-26 Invader. Over 30 different planes used the R-2800 engine.