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The Howmet TX (Turbine eXperimental) was an American sports prototype racing car designed in 1968 to test the competitive use of a gas turbine engine in sports car racing. Planned by racing driver Ray Heppenstall, the TX combined a chassis built by McKee Engineering, turbine engines leased from Continental Aviation & Engineering, and financial backing and materials from the Howmet Corporation.

Although not the first attempt at using a turbine powerplant in auto racing, the Howmet TX was the first and is still the only turbine to successfully win a race, earning two Sports Car Club of America (SCCA) race victories and two qualifying sprint victories during its only year of competition. The TX later set six Fédération Internationale de l'Automobile (FIA) land speed records for turbines after being retired from racing. (more...)

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