(Redirected from Crucis-B)
Part of the chassis of a BattleMech

The chassis or internal structure of a unit is the framework around which the rest of the unit is built. Depending on the unit's form and function, there are a wide variety of different chassis types.


The first BattleMech chassis was that of the venerable Mackie, introduced in 2439, and has been standard in 'Mech designs ever since.[1] Roughly analogous to the bones in the human body, the standard chassis consists of a foamed aluminum core covered with various composite materials, wrapped in silicon-carbide fibers, and clad in titanium-alloyed steel. However, there are only between sixteen to twenty-five "bones" in a 'Mech chassis, partly due to the more simple nature of the design (i.e. a solid one-piece "rib cage" instead of multiple rib bones), which results in less flexibility and articulation than possible with the human skeletal system.[2] BattleMech chassis come in bipedal, tripod and quadruped arrangements.

One variant on the standard design uses Endo-Steel, an advanced material which requires zero-g manufacturing but is twice as strong while being more bulky. Further development in this field has also led to the introduction of Composite internal structures and Endo-Composite Structures.


The chassis of IndustrialMechs is similar to that BattleMechs but uses heavier, less efficient materials and bulkier myomer bundles. The resulting chassis is twice as heavy as a comparable BattleMechs and less resistant to weapons fire, though more suited to physical labor and cheaper to produce.[1] IndustrialMech chassis also come in a wider variety of shapes than the typical humanoid form of BattleMechs, and incorporate more exotic means of locomotion such as footpads with grippers or tracks.[3]


The internal structures used in conventional fighters predates man's first spaceflight, while those used for aerospace fighters and other space-capable units date from the 2020s. All are based around the need to maintain structural integrity and withstand intense g-forces during normal flight and combat. For small fighter craft, their internal structure is welded to their armor, while Small Craft and larger vessels make use of additional reinforcements to link the two components.[1]

Combat Vehicle[edit]

Combat Vehicles come in a wide variety of shapes and sizes, necessitating a wide variety of different chassis designs to accommodate their disparate functions. All share the common advantage of using an open, reinforced framework which can be built around the other components, rather than trying to fit them onto a skeletal frame.[1]

BattleMech Chassis Models[edit]

  • Note the added Chassis models are produced in Clan space and in the Inner Sphere.

Chassis are manufactured on the following planets:

Brand Planet Company Used by References
A1 Type 22 Ultralight Endo Steel Cahokia Achernar BattleMechs PY-SR10 Prey Seeker [4][5]
Alpha Primary Endo Steel
Beta Manufactured Standard
Strato Domingo Auxiliary Production Site 4 Solitaire
Ha Otoko
Alshain Class 98c Orochi [8]
Bowie Light Endo Model 14 Carlisle Bowie Industries RZK-10T Razorback [9]
Clan Series Assault SXC Endo Steel Tamaron Ashton 'Mech Production Complex Canis [10]
Contraband Tortuga Prime Vengeance Incorporated LDT-1 Brigand [11]
Corean Model KL77 Endo Steel Talon (Wernke System) Kallon Weapon Industries HNT-171 Hornet [12]
Coriolis Class IIIb Endo Steel Huntress Abysmal Manufacturing Complex Peregrine 4 [13]
Coventry AL Endo Steel Coventry Coventry Metal Works AL-A1 Álfar [14]
Crucis-A Marduk Victory Industries Wolverine [15]
Crucis-H Filtvelt Coalition Armory Inc. HD-2F Hound [16]
Dennenbach-Mitchell Series 8 Endo Steel Terra Mitchell Vehicles BLF-21 Blue Flame [17]
Detroit Type III Endo Detroit Detroit Consolidated MechWorks ABS-3L Anubis [18]
Eden Mk. 60-OM Arcadia Arcadia BattleMech Plant CM-03 Mad Dog (Vulture) [19]
Earthwerks GRF Marduk Victory Industries Griffin [15]
Earthwerks PXH IV Endo Steel Keystone Earthwerks Incorporated B1-HND Bloodhound [20]
Earthwerks TDR Pinard
Vandenberg Mechanized Industries
Taurus Territorial Industries
Olivetti Weaponry
TDR-5S Thunderbolt [21]
Earthwerk Trooper II Endo Steel Asuncion
Earthwerks Incorporated FLE-17 Flea [22]
FITES-O New Avalon Achernar BattleMechs OSR-5D Osiris [23]
Foundation E50 Endo Steel Furillo Defiance Industries UZL-3S Uziel [24]
GM Fury-M Endo Steel Talcott General Motors HSN-7D Hellspawn [25]
Hellespont Type T Endo Steel Sian Hellespont Industrials SYU-2B Sha Yu [26]
Huntress WH Standard Huntress Phan Industrial Complex Masakari [27]
Krupp 255 Endo Steel Terra Krupp Armament Works GUR-2G Gurkha [28]
Leopard Mark I Endo Steel Terra Leopard Armor RDS-2A Red Shift [29]
Light Series II Endo Steel Huntress
Huntress Production Facility Epsilon
Arcadia BattleMech Plant CM-03
Koshi [30]
MatherTech 750 Coventry Coventry Metal Works STO-6S Stiletto [31]
Medium Series MVV Endo Steel Tamaron Ashton 'Mech Production Complex Rabid Coyote [32]
Model MHO-7E Endo Steel Huntress Huntress Production Facility Epsilon Stormcrow [33]
Mynx Type Heavy
NCIS Standart Type A
Barcella Irece Alpha/Barcella Alpha Nova Cat
Process 12 Endo Steel Arcadia
Arcadia BattleMech Plant CM-T15
Babylon MechWorks V
Reynard Standard Type Unknown CSF Project Reynard Regent [38]
S-Equus Omicron Endo Steel Terra RAF Manufacturing Center Providence CLR-03-O Celerity [39][40]
Series III Endo Steel Tamaron Ashton 'Mech Production Complex Hunchback IIC [41]
Star League XT Arcadia Arcadia BattleMech Plant CM-T4 Hellfire [42]
Type 79-45 Endo Steel Irece Barcella Beta Shadow Cat [43]

ProtoMech Chassis Models[edit]

Chassis are manufactured on the following planets:

Brand Planet Company Used by References


  1. 1.0 1.1 1.2 1.3 TechManual, p. 224
  2. TechManual, p. 32: "The Frame"
  3. TechManual, p. 62
  4. Technical Readout: 3145 Federated Suns, p. 30: "PY-SR10 Prey Seeker"
  5. Technical Readout: 3150, p. 120: "PY-SR10 Prey Seeker"
  6. Technical Readout: 3067, pp. 106–107: "Solitaire"
  7. Technical Readout: 3060, pp. 170-171, "Ha Otoko"
  8. Technical Readout: 3085, p. 102: "Produced Orochi Components"
  9. Technical Readout: 3067, pp. 52–53: "RZK-9S Razorback"
  10. Technical Readout: 3060, pp. 178–179: "Canis"
  11. Technical Readout: 3067, pp. 46–47: "LDT-1 Brigand"
  12. Technical Readout: 3050, p. 52: "HNT-171 Hornet"
  13. Technical Readout: 3055 Upgrade, pp. 178–179: "Peregrine 4"
  14. Historical: Reunification War, pp. 209–210: "AL-A1 Álfar"
  15. 15.0 15.1 Objective Raids, p. 107: "Produced Victory Industries Components on Marduk"
  16. Technical Readout: 3145 Mercenaries, pp. 38–39: "HD-2F Hound"
  17. Technical Readout: 3067, pp. 64–65: "BLF-21 Blue Flame"
  18. Technical Readout: 3067, pp. 48–49: "ABS-3L Anubis"
  19. Technical Readout: 3055 Upgrade, pp. 130–131: "Mad Dog (Vulture)"
  20. Technical Readout: 3067, pp. 62–63: "B1-HND Bloodhound"
  21. Objective Raids, p. 60
  22. Technical Readout: 3050, p. 50: "FLE-17 Flea"
  23. Technical Readout: 3067, pp. 50–51: "OSR-3D Osiris"
  24. Technical Readout: 3067, pp. 71–72: "UZL-3S Uziel"
  25. Technical Readout: 3067, pp. 67–68: "HSN-7D Hellspawn"
  26. Technical Readout: 3067, pp. 60–61: "SYU-2B Sha Yu"
  27. Technical Readout: 3055 Upgrade, pp. 140–141: "Masakari"
  28. Technical Readout: 3067, pp. 54–55: "GUR-2G Gurkha"
  29. Technical Readout: 3055 Upgrade, pp. 44–45: "RDS-2A Red Shift"
  30. Technical Readout: 3055 Upgrade, pp. 116–117: "Koshi"
  31. Technical Readout: 3067, pp. 56–57: "STO-4A Stiletto"
  32. Technical Readout: 3067, pp. 118–119: "Rabid Coyote"
  33. Technical Readout: 3050 Upgrade, pp. 128–129: "Ryoken"
  34. Technical Readout: 3060, pp. 174–175: "Nova Cat"
  35. Technical Readout: 3058 Upgrade, pp. 190–191: "Supernova"
  36. Technical Readout: 3058 Upgrade, pp. 168–169: "Grendel
  37. Technical Readout: 3050 Upgrade, pp. 118–119: "Uller"
  38. Recognition Guide: ilClan, vol. 21, p. 10
  39. Technical Readout: 3145 Republic of the Sphere, p. 26
  40. Technical Readout: 3145, p. 82
  41. Technical Readout: 3058 Upgrade, pp. 172–173: "Hunchback IIC"
  42. Technical Readout: 3067, pp. 120–121: "Hellfire"
  43. Technical Readout: 3058 Upgrade, pp. 170–171: "Shadow Cat"