RTV-G-4 Bumper

The RTV-G-4 Bumper was a rocket built by the United States. It was a combination of the V-2 rocket and WAC Corporal sounding rocket and was used to study problems pertaining to two-stage, high-speed rockets. Eight rockets were launched during the Bumper program between May 13, 1948 to July 29, 1950. While the first six flights were conducted in White Sands, the seventh launch – Bumper 8 on July 24, 1950 – became the first ever rocket to be launched from Cape Canaveral.