Engines

The port side engines (in cowlings) and 17 ft. 2 in. propellers of the Hughes H-4 Hercules flying boat (The Spruce Goose) at the Evergreen Air and Space Museum.
There are eight of these 28 cylinder, 3000 horsepower, Pratt and Whitney R-4360 Wasp Major 4 row radial engines on the Hercules for a total of 24,000 Horsepower.