The Wing D-1 Derringer is an American light twin-engined two-seat monoplane tourer designed by John Thorp and developed by the Hi-Shear Corporation and built by the Wing Aircraft Company.

The Derringer is a low-wing cantilever monoplane with a retractable tricycle landing gear.

It was powered by two 100 hp Continental O-200 engines, one mounted on the leading edge of each wing.

A second prototype flew in November 1964 but crashed a few weeks later due to an in-flight airframe failure.

As of June 3, 1998, the D-1’s type certificate number A9WE was held by Emerald Enterprises LTD of San Diego, CA.