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.

The second of three D-558-2 Skyrockets built by Douglas for the US Navy's supersonic research. This was the first Mach 2 buster aircraft with Scott Crossfield taking it to Mach 2.005 on November 20, 1953 during NACA (National Advisory Committee for Aeronautics - renamed NASA after 1958) testing. It was the Skyrocket's only Mach 2 flight.

US Navy Bureau Number 37975.

Rocket and turbojet powered research aircraft. Also allocated USN serial 37974. Flew 103 times. This individual aircraft was the first in the world to reach Mach 2 - on 20.11.53.

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.