Diplan 'Mechyards

Diplan 'Mechyards
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Company Logo
Company Information
Interstellar Company No
Primary Site(s) Aix-la-Chapelle
Primary Products BattleMechs

The Diplan 'Mechyards were a major BattleMech producer for the SLDF and later for the DCMS.


Although Diplan's role as a major supplier to the Star League Defense Force is well-known, the development of a new variant of the popular Mongoose scout 'Mech for the SLDF Gunslinger Program was lost to history until the technical specifications for this new variant were uncovered by ComStar in the 3050s. Only a single model of the new variant, the MON-66GX, was ever produced - the SLDF command were disinclined to place a production orders as they felt that the design, which varied significantly from the mainstream model, cost substantially more and closely resembled the specialised Exterminator 'Mech, would lead to inappropriate behaviour amongst its pilots.[1]

Unlike Luthien Armor Works, during the Jihad the facility on Aix-la-Chapelle suffered no capital and personnel losses, and had a full production volume of 100% in 3079.[2] The factory itself is easily mistaken for a fortress. Aix-la-Chapelle's large number of tornadoes requires this extreme protection.[3]


Diplan 'Mechyards has manufacturing centers on the following planets:


Components produced on Aix-la-Chapelle:[3][4][5][6]
Component Type
Mongoose[3] Light BattleMech
KBO-7A Kabuto[4] Light BattleMech
HM-1 Hitman[5] Light BattleMech
NX-80 Nyx[6] Light BattleMech (As of 3085)
Chariot Type 1 Endo Steel Hitman[5]
Chariot Type 1a Kabuto[4]
Chariot Type I-b Nyx[6]
Fusion Engine - XL
Leenex 140 XL Kabuto[4]
GM 210 XL Hitman[5]
Pitban 300 XL Nyx[6]
Armor - BattleMechs & Vehicles
Starshield A Hitman[5] & Kabuto[4]
Communications System
Corean Transband-J12 Nyx[6]
Sipher CommCon SCU-4 w/Guardian ECM Hitman[5] & Kabuto[4]
Targeting-Tracking System
Cat's Eyes 5 w/Artemis IV FCS Hitman[5], Kabuto[4] & Nyx[6]
Medium Laser
Argra 3L Hitman[5]
Thunderstroke-L LRM-5 - Hitman[5]

Ozawa (destroyed 2837)[edit]

With the extinction of Endo Steel at the end of the First Succession War the plant switched from the production of the MON-66 to the MON-67. The factory was finally destroyed by retreating Combine troops in 2837 via nuclear weapons.[7]

Components produced on Ozawa:[8][1]
Component Type
JR7-D Jenner[9] Light BattleMech
JR7-F Jenner[9] Light BattleMech
MON-66 Mongoose[10] Light BattleMech
MON-66GX Mongoose Gunslinger[1] Light BattleMech (Single prototype only)[1]
MON-67 Mongoose[8] Light BattleMech
Diplan Scout-A JR7-D Jenner
Kell/D Endo Steel MON-66 Mongoose[10]
Kell/D Standard MON-67 Mongoose[8]
Fusion Engine
Nissan 200 MON-67 Mongoose[8]
Armor - BattleMechs & Vehicles
ProtecTech 6 MON-67 Mongoose[8]
Medium Laser
Argra 27C Jenner[9]
Argra 3L Jenner[9]
Large Laser
Diplan HD Jenner[9]
Communications System
Dawson III Jenner[9]
ON-5 MON-67 Mongoose[8]
Targeting-Tracking System
Bk-309 Jenner[9]
TharHes Mars-1 MON-67 Mongoose[8]


  1. 1.0 1.1 1.2 1.3 Experimental Technical Readout: Gunslingers, p. 3, "MON-66GX Mongoose Gunslinger"
  2. Objectives: Draconis Combine, p. 4, "State of the Industry Table"
  3. 3.0 3.1 3.2 Objectives: Draconis Combine, p. 18
  4. 4.0 4.1 4.2 4.3 4.4 4.5 4.6 Technical Readout: 3060, p. 74, "Produced Kabuto Components on Aix-la-Chapelle"
  5. 5.0 5.1 5.2 5.3 5.4 5.5 5.6 5.7 5.8 Technical Readout: 3055 Upgrade, p. 18, "Produced Hitman Components on Aix-la-Chapelle"
  6. 6.0 6.1 6.2 6.3 6.4 6.5 Technical Readout: 3085, p. 62, "Produced Nyx Components"
  7. House Davion (The Federated Suns), p. 199
  8. 8.0 8.1 8.2 8.3 8.4 8.5 8.6 Technical Readout: 3039, p. 246, "Produced MON-67 Mongoose Components"
  9. 9.0 9.1 9.2 9.3 9.4 9.5 9.6 Technical Readout: 3025 Revised, p.26, "JR7-D Jenner",
  10. 10.0 10.1 Technical Readout: 3050 Upgrade, p. 189