The Pratt & Whitney R-1830-92 Twin Wasp engine was produced from 1932-1951. It was the first radial engine to use two rows of pistons. This allowed for the use of smaller cylinders that increased engine life and improved the function of the engine. The Twin Wasp was so successful that it was used extensively during World War II.
- Type: Fourteen-cylinder two-row supercharged air-cooled radial engine
- Weight: 1,250 pounds
- Displacement: 1,829 cubic inches
- Horsepower: 1,200
- Production total: 173,618