Aviation: X Factor

While retaining its title as the world’s fastest fixed-gear single-engine piston aircraft, the Corvalis TT—formerly the Cessna 400 and before that the Columbia 400—has gained another new name: the Corvalis TTX. The X denotes an upgrade that includes a touchscreen-controlled avionics system, business-jet-quality interior appointments, and new exterior paint schemes …

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Aviation: X Factor