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  • Wright R-3350 Duplex-Cyclone

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    The Wright R-3350 Duplex-Cyclone is a twin-row, supercharged, air-cooled, radial aircraft engine with 18 cylinders displacing nearly 55 L. Power ranged from 2,200 to over 3,700 hp (1,640 to 2,760 kW), depending on the model. Developed before World War II, the R-3350's design required a long time to mature before finally being used to power the Boeing B-29 Superfortress. After the war, the engine had matured sufficiently to become a major civilian airliner design, notably in its turbo-compound forms, and was used in the Lockheed L-1049 Super Constellation airliners into the 1990s. The engine is now commonly used on Hawker Sea Fury and Grumman F8F Bearcat Unlimited Class Racers at the Reno Air Races.

  • Lycoming O-235

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    The Lycoming O-235 is a family of four-cylinder, air-cooled, horizontally opposed piston aircraft engines that produce , derived from the earlier O-233 engine. Well-known designs that use versions of the O-235 included the Cessna 152, Grumman American AA-1 series, Beechcraft Model 77 Skipper, Piper Tomahawk, American Champion Citabria, Piper Clipper, and the Piper PA-22-108 Colt.

  • Panther Model 75

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    The Model 75 Panther motorcycle had a 348cc, 6.5:1 (later 6.7:1) compression ratio, 71 x 88 mm, ohv vertical engine in a relatively standard frame. It was developed from the 1948 Model 70. In many respects it was similar to the 248cc Model 65. The Model 75 had Lucas K1F magneto ignition. The gearbox was Burman CP four speed unit with a ratio of 5.25:1. The frame was a heavy duty cradle with a single saddle down tube. A swinging arm model was introduced in 1953. The Dowty forks that initially provided front suspension were later replaced with the P&M telescopic forks. Wheels were 26" x 3.25" front and rear initially with 6" half width hubs and later optional alloy hubs were offered.

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