Changes

[[Image:P-47b.jpg|thumb|300px]]

[[Image:P-47b.jpg|thumb|300px]]

==Origins==

==Origins==

The P-47 originated in 1940, when AAF commander General [[Hap Arnold]] asked for a plane to give air superiority over the Germans. Alexander Kartveli, chief designer at Republic Aviation, met the challenge using an unusually large fuselage and the new 18 cylinder, 2,000 horsepower air-cooled radial "Double Wasp" engine from Pratt and Whitney. Its high-altitude performance was dramatically enhanced by a General Electric turbo-supercharger.<ref>The turbo-supercharger utilized an exhaust-driven compressor to drive a centrifugal supercharger. GE, at work on the device since 1918, finally solved the extremely difficult problems of very high speed rotation at high temperatures.</ref>

The P-47 originated in 1940, when AAF commander General [[Hap Arnold]] asked for a plane to give air superiority over the Germans. Alexander Kartveli, chief designer at Republic Aviation, met the challenge using an unusually large fuselage and the new 18 cylinder, 2,000 horsepower air-cooled radial "Double Wasp" engine from [[Pratt & Whitney]]. Its high-altitude performance was dramatically enhanced by a General Electric turbo-supercharger.<ref>The turbo-supercharger utilized an exhaust-driven compressor to drive a centrifugal supercharger. GE, at work on the device since 1918, finally solved the extremely difficult problems of very high speed rotation at high temperatures.</ref>

 

==Weapon system==

==Weapon system==

Production model #1 flew in spring 1942 and #10,000 flew in fall 1944. The plane, produced by Republic Aviation, cost an average of $80,000 (compared to $50,000 for the smaller [[P-51]]). The 1945 version P-47M, burning 115/145 grade gasoline, had a maximum speed of 460 mph, a ceiling of 40,000 feet, and (with auxiliary drop tanks) a combat range of 2,000 miles. Escorting the [[B-17]]  and the [[B-29]], its 8 50-caliber machine guns could rip apart Luftwaffe or Japanese fighters (which had only 90 octane gasoline). As a tactical weapon it was armed with five 500 pound bombs plus ten 5" rockets. At ten tons, the big Thunderbolt needed a long runway, and was less agile than the Luftwaffe's Focke-Wolf 190. But it was better than good enough, downing 3 German planes for every loss.  

Production model #1 flew in spring 1942 and #10,000 flew in fall 1944. The plane, produced by Republic Aviation, cost an average of $80,000 (compared to $50,000 for the smaller [[P-51]]). The 1945 version P-47M, burning 115/145 grade gasoline, had a maximum speed of 460 mph, a ceiling of 40,000 feet, and (with auxiliary drop tanks) a combat range of 2,000 miles. Escorting the [[B-17]]  and the [[B-29]], its 8 50-caliber machine guns could rip apart Luftwaffe or Japanese fighters (which had only 90 octane gasoline). As a tactical weapon it was armed with five 500 pound bombs plus ten 5" rockets. At ten tons, the big Thunderbolt needed a long runway, and was less agile than the Luftwaffe's Focke-Wolf 190. But it was better than good enough, downing 3 German planes for every loss.