The LGM-25C Titan II (SM-68) was an Intercontinental ballistic missile (ICBM) which was deployed by the US Air Force during the Cold War. The Titan II was developed by the American firm Glenn L. Martin from the Titan I. Although it was originally used as a deterring nuclear ICBM, the Titan II rocket was later used as a medium-lift space launch vehicle to carry payloads for the National Aeronautics and Space Administration (NASA) and National Oceanic and Atmospheric Administration. The Titan II flew for the first time on March 12, 1962, reaching initial operating capability in October 1963.
The Titan II was armed with a W53 thermonuclear warhead in a Mark 6 re-entry vehicle. The W53 yielded 9 megaton, making it one of the most powerful nuclear weapons built by the United States of America. The LGM-25C Titan II was a two-stage missile with a range of 9,400 miles (15,500 km). For the first stage, it used two LR-87 rocket engine, and for the second, one LR-91 engine. The LGM-25C missile measured 31,4 m (93 ft) in length, and 3,05 m (9,1 ft) in diameter.
Titan II Documentary