Ed Swearingen (1925-2014) designed fast airplanes, period, end of sentence. He designed the Metroliner and the SJ-30 jet, among others. His SJ30 jet, first demonstrated at the Paris Airshow in 1991 still holds speed records over three different courses. His design of the SX-300, a two passenger, retractable gear rocket ship, powered by a Lycoming O-540 is one of the fastest prop-driven kit airplanes ever built in numbers, though there weren’t all that many built.
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