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The RX-105 Ξ Gundam, also known as the Xi Gundam (Ξ(クスィー) ガンダム Kusī Gundam?, "Ksi Gundam") [2][5], is a mobile suit that appears in the Mobile Suit Gundam Hathaway movie. Procured by the Anti-Earth Federation movement Mafty for the attack on the Adelaide conference [4], it was piloted by Mafty Navue Erin [3].

Technology & Combat Characteristics

It and the RX-104FF Penelope were classified as fifth-generation MS and are said to have been developed and constructed by Anaheim Electronics. It was a unique MS with a built-in Minovsky Flight Unit and was equipped with the latest Beam Barrier system. Since the Penelope relied on optional units to obtain similar functions, it can be said that the Xi Gundam was a truly completed fifth-generation MS that could function independently. Furthermore, it was armed with standard equipment such as a Beam Rifle and Shield, as well as Funnel Missiles that made it a unique, heavily armed unit. The large arms were also one of its iconic external features and the forearms also functioned as containers for Triple Missiles. The Xi Gundam was an MS of an extremely high degree of perfection which fought against the Penelope and the Circe Unit with Hathaway Noa as its pilot [4].


Beam Rifle

The Xi Gundam's main armament. It is said that its initial velocity was close to double the specs of previous models and its power was enough to destroy a Gustav Karl in a single shot. An Energy Pack was attached to the rear end of the weapon [4].

According to their Equipment Index, Mafty possessed 3 beam rifles and 30 energy packs [3].

Beam Saber

Melee combat armaments equipped on the left and right shoulders. Their high output enabled them to cut MS in half. They could also generate beam blades from the bottom of the handles in a similar way to the armaments used by the RX-93 ν Gundam [4].

Triple Missiles

The forearms functioned as containers for Triple Missiles [4]. They could also be launched from the knees [3].

According to their Equipment Index, Mafty possessed 84 of these missiles [3].

Funnel Missiles

Psycommu-guided missiles that could change their trajectory and track targets to a certain degree after being launched in environments where Minovsky Particles have been released. Ten missiles could be equipped on the back of the rear skirts [4].

According to their Equipment Index, Mafty possessed 80 funnel missiles [3].


External additional armor equipped on the left arm. It had sufficient defensive capabilities against Mega Particle Cannons [4].

According to their Equipment Index, Mafty possessed 2 shields [3].

Beam Cannon

It was also equipped with a Beam Cannon on its tip, functioning as a secondary weapon [4].

Equipment & Features

Flight Form

The shoulder armor equipped with the Minovsky Flight Units and the stabilizer on the back could be extended to transform into a Flight Form. Beam Barriers generated through the aerodynamic control technology could be used during this form to enable supersonic flight abilities and a vast cruising range. Its maximum speed is said to have reached Mach 2 [4].


After separating a Messer from the deck of a Galcezon, Hathaway boarded the Cargo Pisa, which had descended towards Earth, and entered its deck. He then saw the Xi Gundam stored within the ship and slid into its cockpit. The ship's altitude plummeted every second, but Hathaway activated the MS, escaped from the ship, fended off an enemy MS unit, and lowered his MS towards the surface of the ocean. The Penelope was in pursuit of the MS and released Funnel Missiles which crashed on impact with the ocean surface, creating columns of water. The Xi Gundam glided just above the water's surface and launched its Beam Rifle in front of itself as a decoy. This attempt was successful as the Penelope fired at the Beam Rifle. The Xi Gundam used the opportunity to confront the Penelope and unleashed the Funnel Missiles [7][3].




  1. 1.00 1.01 1.02 1.03 1.04 1.05 1.06 1.07 1.08 1.09 1.10 1.11 1.12 1.13 (April 2021) HG 1/144 RX-105 Xi Gundam Manual. Bandai, front cover. JAN 4573102613318. 
  2. 2.0 2.1 MECHA|『機動戦士ガンダム 閃光のハサウェイ』公式サイト (Japanese). Archived from the original on 2021-06-11.
  3. 3.00 3.01 3.02 3.03 3.04 3.05 3.06 3.07 3.08 3.09 3.10 3.11 Mobile Suit Gundam Hathaway
  4. 4.00 4.01 4.02 4.03 4.04 4.05 4.06 4.07 4.08 4.09 4.10 4.11 (April 2021) HG 1/144 RX-105 Xi Gundam Manual. Bandai, p. 10. JAN 4573102613318. 
  5. 5.0 5.1 HGUC 1/144 Ξガンダム|バンダイ ホビーサイト (Japanese). Archived from the original on 2021-06-20.
  6. (2021-03-26) ガンダムエース 2021年5月号 No.225 (in Japanese). 角川書店. 雑誌 1240105. “『機動戦士ガンダム 閃光のハサウェイ』カウントダウン特集 中谷誠一&玄馬宣彦インタビュー” 
  7. 7.0 7.1 7.2 7.3 (April 2021) HG 1/144 RX-105 Xi Gundam Manual. Bandai, p. 11. JAN 4573102613318. 

External Links

Mobile Suit Gundam Hathaway

Circe Unit
Mobile Weapons, Workers & Armors
FD-03-00 Gustav Karl Type-00 | RX-104FF Penelope

Vehicles & Support Units
BJ-K232 Kessaria
Criminal Police Organization
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RGM-89Gmh Jegan Ground Type-A (Man Hunter)
Mobile Weapons, Workers & Armors
ORX-005 Gaplant
Mobile Weapons, Workers & Armors
Me02R-F01 Messer Type-F01 | Me02R-F02 Messer Type-F02 | Me02R-Fc Messer Type-F Naked (Commander Type) | RX-105 Ξ Gundam

Vehicles & Support Units
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