XM-X3 Crossbone Gundam X-3


Model number(s): XM-X3 (Crossbone Vanguard); F97 (Strategic Naval Research Institute
Code name: Crossbone Gundam X-3
Unit type: prototype general purpose mobile suit
Manufacturer: SNRI
Operator: Crossbone Vanguard
First deployment: UC 0133
Accommodation: pilot only, in panoramic monitor/linear seat cockpit in torso with Core Block System using Core Fighter
Dimensions: head height 15.9 meters
Weight: empty 9.5 metric tons; max gross 24.8 metric tons
Armor materials: Gundarium alloy high ceramic composite
Powerplant: Minovsky type ultracompact fusion reactor, output rated at 5,280 kW
Propulsion: rocket thrusters: 100,000 ~ 120,000 kg total (4 x 25,000 kg (maximum 30,000 kg)); vernier thrusters/apogee motors: 34
Equipment and design features: sensors, range unknown; special weapons targeting sensor in head, can be deployed over right eye sensor/camera; dummy launchers in hands; optional ABC (anti-beam coating) mantle; 2 x I-field generator, mounted one in each forearm, maximum operational time 105 seconds (recharge time: 120 seconds)
Fixed armaments: 2 x vulcan gun, mounted in head; 2 x beam saber/beam guns, stored in shoulder recharge racks, hand-carried in use; 2 x heat dagger, stored in thighs, hand-carried in use, blades can extend or be launched from soles of feet; 2 x scissor anchor, mounted as front skirt armor
Optional fixed armaments: 2 x brand marker/beam shield, mounted one on each forearm, can be removed
Optional hand armaments: muramasa blaster (14 x beam saber, beam gun); buster gun, can launch grenades (standard and nuclear warhead type); beam zanber; zanbuster (combined buster gun/beam zanber)

Produced as a limited testbed model, the XM-X3 Crossbone Gundam X-3’s performance was roughly on par with the original two units but possessed a variety of new equipment. The chest armor was strengthened and featured a pair of Gatling guns to enhance its close combat abilities. The most important change was in the arms, which replaced the standard beam shields with a pair of I-field generators. While the I-field was originally too energy-intensive to be used in anything except mobile armors, the downsizing of mobile suits around UC 0123 saw the concept revisited. The X-3’s I-field could deflect, bend, or even reflect enemy beams depending on their strength, and could even withstand battleship-class mega particle cannons. However, each arm unit only had an operational time of 105 seconds with a 120-second cooldown period, leaving a 15-second gap in the defenses which the pilot needed to carefully mind.

The X-3’s main weapon was the muramasa blaster, a large metal sword mounting 14 beam saber emitters along its blade and a beam gun in its tip. The blades were powerful enough that only the X-3’s own I-field could stop them, but because of its high energy output the blaster could not be used for an extended period of time and was thus designed to be useful even unpowered. Otherwise, the X-3 was effectively identical to its predecessors. The sole unit produced was assigned to young Crossbone Vanguard pilot Tobia Arronax, who used it throughout the final battle with the Jupiter Empire, sacrificing the Gundam to destroy Crux Dogatie’s EMA-10 Divinidad mobile armor on Earth.

Pilot: Tobia Arronax
First appearance: Mobile Suit Crossbone Gundam
Original mechanical designer: Hajime Katoki
Note: Core Fighter custom color lineart by AmuroNT1


Crossbone Gundam Info

Yoshiyuki Tomino
Yuichi Hasegawa

Yuichi Hasegawa

Mechanical Designer(s):
Yuichi Hasegawa
Hajime Katoki

6 volumes

Manga Release:
Japan 12.01.1994 – 03.01.1997


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