YMS-16M Xamel

A prototype mobile suit developed by the Principality of Zeon during the One Year War of Mobile Suit Gundam, the YMS-16M Xamel  was first introduce in Mobile Suit Gundam 0083: Stardust Memory.

History
Designed late during the One Year War, the YMS-16M Xamel was the first true heavy artillery mobile suit, designed to operate as a mobile artillery gun battery. Equipped with a powerful hovercraft/hoverjet system in its legs and massive skirt armor, it could skim along the ground at high speed, giving it the ability to fire, move to another location, set up and fire again without giving away its position too easily. Its primary armament was its long-barreled 680mm cannon, which could be folded up for transport when not in use. It also mounted a missile launcher pod for medium-range fire, but its close-combat abilities were extremely limited, with only a pair of almost useless arms and a 20mm vulcan gun turret mounted in the head. The Xamel also featured a tandem-seat cockpit, crewed by a pilot and a gunner. It is unknown exactly how many of these prototype units were produced, although one Xamel is known to have been used by Delaz Fleet forces in its "Operation Stardust" theft of the RX-78GP02A Gundam "Physalis" prototype from the Earth Federation Forces in UC 0083, inflicting severe damage to Torrington Base in Australia.