The Williams-Cangie WC-1 Sundancer is an American homebuilt biplane racing aircraft that was designed by Art Williams and Carl Cangie and built by Ralph Thenhaus in 1974.

It has a single-seat enclosed cockpit under a bubble canopy, fixed conventional landing gear and a single engine in tractor configuration.

[1] The aircraft is made from aluminum sheet, with the fuselage flush riveted stressed skin.

With full fuel of 16 U.S. gallons (61 L; 13 imp gal) the payload is 184 lb (83 kg).

[1] Data from Plane and Pilot, Aerofiles[1][3]General characteristics Performance