Since the initial development in 1972 there have been four distinct types of Tomahawk cruise missiles. The two nuclear versions, the USAF ground launched version and the Navy BGM-109A, have either been removed from the US inventory or have had the W-80 thermonuclear warhead removed and replaced with a conventional high explosive.
Although most publications list the Tomahawk accuracy at 30 feet (9 m), the real truth lies in the computer guidance system. Tomahawk is designed to fly through a one meter square window on earth at a predesignated time.
