The Continental R-670 or W-670 was one of the most successful radial engines ever built. Over 40,000 of these engines were built before and during World War 2. They powered everything from US Air Force Stearman Biplane trainers, to US Army Stuart tanks, and US Navy LVT Landing Craft. A truly versatile engine that produces about 250 HP, it was a very reliable engine in the airplane application. Cooling problems and the fact that it runs on gasoline (vs diesel) fuel made it somewhat dangerous in the tank and landing craft applications.
The Aero Telemetry team is midway through the rebuild process on this Continental
R-670 engine restoration.