Continental R-670

R-670
Continental W670 on display
Type	Piston aircraft engine
Manufacturer	Continental Motors
First run	1934
Major applications	PT-17 Stearman M3 Stuart

The Continental R-670 (factory designation W670) was a seven-cylinder four-stroke radial aircraft engine produced by Continental displacing 668 cubic inches (11 litres) and a dry weight of 465 lb (211 kg). 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.^[1]

In addition to being used in aircraft, the R-670 was used in a number of light armored vehicles of World War II.