cruise missile was equipped with a W80-0 warhead. The W80-0 used supergrade plutonium with less inherent radioactivity, due to missile storage in close proximity to submarine crew. The weapon lacks the metal attachment points featured on the Mod 1 variant and instead features a plastic guard of some sort. The W80-0 has a variable yield of 5 or 150 kilotons. 367 W80-0 warheads were produced. W80-1 The AGM-86 ALCM and ACM cruise missiles used the W80-1 variant warhead. It has a yield of 5 or 150 kilotons. 1,750 W80-1 warheads were produced. W81 The W81 missile warhead was designed for use on the SM-2 missile. An enhanced radiation version was proposed, but the final version was fission-only. Detailed dimensions and weight are unknown. Yields are described as 2-4 kilotons. The W81 was cancelled and never entered service. W84 The W84 is a LLNL design based on the B61, used in the Ground Launched Cruise Missile. It is slightly larger (13 inches diameter, 34 inches long) and heavier (388 pounds) than the otherwise similar W80 warheads, possibly to make it safer for ground handling in the field. Between 300 and 350 W84 warheads were produced. They remain in US inactive inventory. W85 Used on the Pershing II IRBM missile, the W85 was a cylinder in diameter and long. It had a variable yield from 5 to 80 kilotons. 120 W85 warheads were produced. They were recycled into B61 Mod 10 bombs after Pershing II was scrapped. W86 Some sources have described the W86 as being B61 derived, but other sources have described the W86 as being in diameter, substantially smaller than the B61. Gallery See also List of nuclear weapons References B61 at nuclearweaponarchive.org Nuclear weapons