Continental R-670


The Continental R-670 was a seven-cylinder four-cycle radial aircraft engine produced by Continental displacing 668 cubic inches 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.
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

Applications

Aircraft