XM-X1 Crossbone Gundam X-1 Skull Heart

General and Technical Data

Model number(s): XM-X1 (Crossbone Vanguard); F97 (Strategic Naval Research Institute
Code name: Crossbone Gundam X-1 Skull Heart
Unit type: custom close combat mobile suit
Manufacturer: SNRI
Operator: Crossbone Vanguard
First deployment: unknown
Accommodation: pilot only, pilot only, in standard cockpit in torso with 
Core Block System using Core Fighter
Dimensions: head height 15.9 meters
Weight: unknown
Armor materials: Gundarium alloy high ceramic composite
Powerplant: Minovsky type ultracompact fusion reactor, power output rating unknown
Propulsion: rocket thrusters, output unknown
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
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; scissor anchor, mounted as right front skirt armor; screw whip, hand-carried in use, stored in left rear skirt armor; 2 x brand marker/beam shield, mounted one on each forearm, can be removed
Optional hand armaments: peacock smasher; buster gun, can launch grenades (standard and nuclear warhead type); beam zanber; zanbuster (combined buster gun/beam zanber)

Technical and Historical Notes

Following the conclusion of the Jovian War in UC 0133, the XM-X1 Crossbone Gundam X-1 Kai was further remodeled by the Crossbone Vanguard remnants. Because SNRI used the basic Crossbone Gundam frame to produce their next generation mobile suit, the F99 Record Breaker, new parts were in abundant supply. A balance was struck between the original X-1 and the X-1 Kai, mounting one scissor anchor on the front right skirt and one screw whip on the rear left skirt. However, the most eye-catching change was the skull relief on the chest, which was seen as a better symbol for a group of space pirates than the crest of an elite force centered around the concept of nobility. This distinctive decoration earned it the nickname Skull Heart thanks to rumors and vague sightings from the space colonies. In a battle with the Amakusa, the Skull Heart wielded a newly developed special weapon, the peacock smasher. This crossbow-like weapon mounted nine separate beam guns which could be fired in any arrangement, but simultaneous use drained its energy and required the replacement of the barrel parts. During the attack on SNRI’s lunar facility, the Skull Heart was badly damaged by the new Jovian mobile suit Cornigs, forcing the Crossbone Vanguard to hastily repair it with whatever parts were available, producing the XM-X1 Crossbone Gundam X-1 Patchwork.

Miscellaneous Information

Pilot: Tobia Arronax
First appearance: Mobile Suit Crossbone Gundam: Skull Heart
Original mechanical designer: Yuichi Hasegawa
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


Comments are closed.