TITAN I (SM-68A/HGM-25A)

In 1954 during the development of the ICBM Atlas missile, the USAF contacted another series of companies so that in the event that any of the main components failed, they would have a resource ready so that development would not be paralyzed. In 1955, despite the successful development of the Atlas missile, Martin was commissioned to develop a new ICBM missile as the US defense policy could not be based on the existence of a single type of missile. In this way, the SM-68A/HGM-25A Titan I emerged, the world’s first multistage ICBM missile, which despite only remaining operational during three years, paved the way for future developments as Titan II ICBM, Titan III satellite launch rocket and Saturn V moon rocket.

TITAN I gallery and more info