These are five U.S. submarine-launched ballistic missile models of unknown scale. On the far left is the Polaris A-1, which carried one nuclear warhead, had a range of 1,400 miles, and was deployed during the 1960s. Next is the Polaris A-2, which carried one nuclear warhead, had a range of 1,700 miles, and was deployed during the 1960s and 1970s. The middle missile is the Polaris A-3, which carried up to six nuclear warheads, had a range of nearly 2,900 miles, and was deployed from the late 1960s into the early 1980s. The fourth missile is the Poseidon, which carried up to fourteen nuclear warheads, had a range of over 3,000 miles, and was deployed from the 1970s until the early 1990s. The last missile is the Trident, which carries up to eight nuclear warheads, has a range of over 4,500 miles, and was first deployed in late 1980s. John and Cynthia Heyde donated these models to NASM on an unknown date.
This object is on display in James S. McDonnell Space Hangar at the Steven F. Udvar-Hazy Center in Chantilly, VA.