RTX-440 Assault Guntank


Model number: RTX-440
Code name: Assault Guntank
Unit type: ground assault artillery mobile suit
Manufacturer: Earth Federation Forces
Operator: Earth Federation Forces
Rollout: unknown
First deployment: November UC 0079
Accommodation: pilot only, in standard cockpit in torso
Dimensions: overall height 13.7 meters (normal mode); 9.2 meters (assault mode); overall length 25.6 meters (normal mode); 32.9 meters (assault mode); overall width 10.9 meters
Weight: empty 51.0 metric tons; max gross 70.0 metric tons
Armor materials: Titanium alloy
Powerplant: Minovsky type ultracompact fusion reactor, power output rating unknown
Propulsion: 4 x engine-driven caterpillar tread: maximum speed unknown
Performance: unknown
Equipment and design features: sensors, range unknown
Fixed armaments: 220mm cannon, mounted on main body; 2-tube bob gun, mounted on left forearm, features flamethrower; 4-tube bob gun, mounted on right forearm; 2-tube MLRS (Multiple Launch Rocket System), mounted on main caterpillar treads; 56-tube rocket launcher, mounted on main caterpillar treads; 4 x heavy mine, mounted on main caterpillar treads

The RTX-440 Assault Guntank was a mobile suit based on the prototype RTX-44. However, its development was halted after technical officer Clyde Bettany stole its specs and defected to Zeon, placing his subordinate and lover Aline Nazon under suspicion. Compared to the RX-75-4 Guntank, the Assault Guntank could deploy its secondary caterpillar treads and have its torso squat for its assault mode, which allowed it to move at higher speed. The Assault Guntank featured more armaments than the standard Guntank, including its main 220mm cannon, bob guns, a flamethrower, heavy mines, 2-tube MLRS and a rocket launcher. In November UC 0079, three Assault Guntanks were assigned to the 44th Independent Composite Brigade on the European front lines for Operation Odessa. Piloted by Nazon, Milos Karppi and Drogba Khuzwayo, their mission was to take out a Dabude class land battleship. The mission was accomplished at the cost of losing Karppi and Kuzwayo, but when a second Dabude appeared, Nazon suspected that Bettany was aboard and conducted a suicide attack. At the time, she was unaware that Bettany’s defection was a ruse and that he operated as a double agent for the EFF.

Pilot(s): Aline Nazon, Milos Karppi, Drogba Khuzwayo
First appearance: Mobile Suit Gundam MS IGLOO 2: The Gravity Front
Original mechanical designer: Kimitoshi Yamane






Left arm bob gun


Rear view (CG, normal mode)


Rear view (CG, assault mode)


Takashi Imanishi

Tomohide Ohkuma

Mechanical Designer(s):
Yutaka Izubuchi
Shinji Aramaki
Kimitoshi Yamane
Fumihiro Katagai
Takuhito Kusanagi

Character Designer:

Musical Composer:
Megumi Ohashi

3 episodes

Video Release:
Japan 10.24.2008 – 4.24.2009
U.S. 07.11.2017


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