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In its first months, ARPA managed and funded rocket development programs that would prove to be long-lived and far-reaching. Among these was a launch-vehicle program under the auspices of Wernher von Braun’s engineering team that would transfer to America’s new civilian space program, the National Aeronautics and Space Administration (NASA). There, von Braun’s initial booster technology, Juno V, would lead to the cluster-engine Saturn V Space Launch Vehicle, famous for its role in manned spaceflight to the Moon.
Another DARPA-authorized program in 1958, development of a liquid oxygen/hydrogen (LOX/LH2) upper-stage rocket known as Centaur, also transferred to the fledgling NASA. After several failures, the Centaur booster achieved its first successful orbital flight in 1963 and its first successful mission in 1966. Centaur rockets improved the ability of U.S. launch vehicles to place sizeable payloads into geosynchronous Earth orbit (GEO) and helped pave the way toward future lunar and deep space missions. During its evolution, the Centaur LOX/LH2 upper stage technology has been used extensively on Atlas and Titan boosters for diverse missions. Centaur engine technology was also used in the upper stages of the Saturn rockets for the Apollo manned missions to the Moon and in the Space Shuttle’s liquid hydrogen-oxygen engines.
DARPA initiated a Small Standard Launch Vehicle (SSLV) program that led to the Taurus, a launch vehicle designed to supply the Department of Defense with quick-response, low-cost launch of tactical satellites from ground facilities. The initial DARPA model was first test-launched in 1989 and first used operationally in 1994. The prime contractor subsequently offered the vehicle in four versions.