GAT-X102 Duel Gundam

The GAT-X102 Duel was the first mobile suit developed under the Earth Alliance's "G Project" during the opening months of the Bloody Valentine War. On Cosmic Era 25 January 71, the Duel is stolen from Morgenroete, Inc.'s Heliopolis facility by ZAFT mobile suit pilot Yzak Joule. The Duel is the first mobile suit ever to be equipped with Phase Shift armor.

In several early battles with the Strike piloted by Kira Yamato, the Duel is damaged severely, losing an arm in one instance and suffering a penetrating hit to the cockpit in another, that caused injury to Yzak Joule's face. After these battles, the Duel is equipped with a 34.37 ton armor system called the Assault Shroud, which it continues to use until the end of the war.

In battle, the Duel proves highly effective in combat against the Alliance's hordes of mass-produced GAT-01 Strike Dagger mobile suits, and frequently racks up admirable kill counts of the suits. It also destroys the GAT-X252 Forbidden, by sacrificing the Assault Shroud as a decoy.

GAT-01D Long Dagger/GAT-01D1 Duel Dagger
The Duel has two derivative mass-production mobile suits, the early production GAT-01D Long Dagger and mass production GAT-01D1 Duel Dagger.

Both designs can be considered the Dagger form of the X102 Duel. Both Long Dagger and Duel Dagger have a heavily protected "Fortresta Mode" analogous to the Duel's Assault Shroud.

The -01D was originally to be named "Duel Dagger", however the name was switched to Long Dagger following ZAFT's capture of the X102. A high-performance machine for Coordinators, Combat Coordinators and Biological CPUs in the Alliance's employ, the main purpose of the Long Dagger was to gather data for the Natural-compatible OS of the Strike Dagger, using real combat situations to provide the data.

The Duel Dagger was an identical machine in all but colour, and operated by numerous noted Alliance aces. Known Long Dagger pilots include Eleven Socius, Seven Socius, and Jean Carry with his custom white machine; Duel Dagger pilots include Edward Harrelson and Rena Imelia.

One Long Dagger pilot, Seven Socius, takes part in the Second Battle of Jachin Due, but is killed in battle against the ZGMF-X13A Providence. Several Duel Dagger pilots also take part, but most of them are killed by ZAFT's elite Joule Team.

One Long Dagger was tested and stolen by insane "Combat Coordinator" Eleven Socius, and another was used by Jean Carry; a.k.a. "Glittering Star J", before he defected to the Three Ships Alliance and piloted an MBF-M1 M1 Astray at the end of the war. Two Duel Daggers were piloted by EA ace Edward Harrelson and EA mobile suit instructor Rena Imelia.

GAT-X102 Duel
Manufacturer: Morgenroete, Inc/Earth Alliance Users: Earth Alliance, Zodiac Alliance of Freedom Treaty Unit type: prototype close combat mobile suit Head height: 17.5 meters Base weight: 69.1 metric tons Special Equipment: Phase Shift armor Armament: "Igelstellung" 75mm anti-air vulcan gun x2, beam saber x2 Optional armament: 57mm high-energy beam rifle with 175mm grenade launcher x1 Pilot: Yzak Joule

GAT-X102 Duel Assault Shroud
Manufacturer: Martius Arsenals User: Zodiac Alliance of Freedom Treaty Head height: 17.5 meters Full weight: 103.47 metric tons Armament: "Igelstellung" 75mm anti-air vulcan gun x2, beam saber x2, "Shiva" 115mm railgun x1, 220mm 5-barrel missile pod x1 Optional armament: 57mm high-energy beam rifle with 175mm grenade launcher x1 Pilot: Yzak Joule

GAT-01D Long Dagger
Manufacturer: Earth Alliance Users: Earth Alliance, Orb Union Unit type: prototype high performance mobilt suit Head height: 18.02 meters Base weight: unknown Armament: beam saber x2 Optional armament: 57mm high-energy beam rifle with 175mm grenade launcher x1 Pilot(s): Eleven Socius, Seven Socius, Jean Carry

GAT-01D Long Dagger Fortresta Mode
Manufacturer: Earth Alliance Users: Earth Alliance Head height: 18.02 meters Base weight: unknown Armament: beam saber x2, cannon x1, 8-barrel missile pod x1 Optional armament: 57mm high-energy beam rifle with 175mm grenade launcher x1 Pilot(s): Eleven Socius, Seven Socius, Jean Carry

GAT-01D1 Duel Dagger
Manufacturer: Earth Alliance Users: Earth Alliance Unit type: limited production close combat mobile suit Head height: 18.02 meters Base weight: unknown Armament: beam saber x2 Optional armament: 57mm high-energy beam rifle with 175mm grenade launcher x1 Pilot(s): Edward Harrelson, Rena Imelia

GAT-01D1 Duel Dagger Fortresta Mode
Manufacturer: Earth Alliance Users: Earth Alliance Head height: 18.02 meters Base weight: unknown Armament: beam saber x2, cannon x1, 8-barrel missile pod x1 Optional armament: 57mm high-energy beam rifle with 175mm grenade launcher x1 Pilot(s): Edward Harrelson, Rena Imelia

Trivia

 * Duel's head crest displays the text "UNO X-102", which means "One" in Italian and a reference to the GAT-X102 Duel being the first mobile suit developed under the Earth Alliance's "G Project".