Pratt & Whitney R-4360 Wasp Major | Horse Drawn Sled | Clockwork Jack

18 Cylinder Radial Engine

radial engine

Plans to build the engine were purchased from Ageless Engines

radial engine

The 18 cylinder engine has 2 rows of 9 cylinders. 1" bore X 1 ¼ stroke.

radial engine

All aluminum parts were anodized green. All other material is Stainless Steel

This engine was machined from solid bar stock. No castings were used. The only parts not fabricated or machined were the spark plugs, propeller, carburetor and ignition system circuit boards.

radial engine

The full sized version of this type of 18 cylinder engine was common on the Vought Corsair and the Grumman Hellcat aircraft.