The first of three of this rocket and jet-powered research supersonic aircraft that were built. First flew as 37973 in 1947. To NACA as NACA 143. Retired in 1957. Preserved at the Planes of Fame Air Museum by 1984.

Supersonic research aircraft preserved at the Planes of Fame Museum at Chino. Ex NACA143.

The US Navy's first of three (and with 123 flights, the most flown) D-558-2 Skyrocket research aircraft. All but one of the flights carried out using the original Westinghouse jet engine. It was returned to Douglas in 1951 for conversion to rocket powered air launch configuration. Re-delivered, but only one shakedown flight completed in September 1956 before the program was cancelled.

Supersonic research aircraft stored at Ontario before restoration at Chino.