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The Continental R-670 (factory designation W670) was a seven cylinder four-cycle radial aircraft engine produced by Continental displacing 668 cubic inches (11 litres) and a dry weight of . Horsepower varied from 210 to 240 at 2,200 rpm. The engine was the successor to Continental's first radial engine, the 170 hp Continental A-70. This engine was used on many aircraft in the 1930s and 1940s. The R-670 was widely used in the PT-17 Stearman primary training aircraft of the U.S. military.〔Gunston 1989, p.42.〕 In addition to being used in aircraft, the R-670 was used in a number of light armored vehicles of World War II. ==Variants== ''Data from:'' Jane's All the World's Aircraft 1938 Variants of the W670 included: ;W670-K:carburetor, 5.4:1 compression, 65 Octane, front exhausts and ;W670-L:carburetor, 5.4:1 compression, 73 Octane, rear exhausts and ;W670-M:carburetor, 6.1:1 compression, 80 Octane, front exhausts and ;W670-N:carburetor, 6.1:1 compression, 80 Octane, rear exhausts and ;W670-K1:fuel injection, 5.4:1 compression, 73 Octane, front exhausts and ;W670-L1:fuel injection, 5.4:1 compression, 73 Octane, rear exhausts and ;W670-M1:fuel injection, 6.1:1 compression, 80 Octane, front exhausts and ;W670-N1:fuel injection, 6.1:1 compression, 80 Octane, rear exhausts and 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Continental R-670」の詳細全文を読む スポンサード リンク
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