Delta II is the ultimate evolution of the US Air Force’s Thor missile, which first flew in 1957 and stood watch in Britain against Soviet aggression from 1959 to 1963. The Thor missile grew out ...

Thor firing which was taken when the missile was at an 18 mi. altitude and 35 mi. slant range from the tracking telescope. The lens used had a 500 in. focal length. The link diamond exhaust shock ...