Production information
Manufacturer Bergan Industries[1]
Production Year 3061[2][3]
Model (base)[1]
Class Heavy
Cost 14,777,950 C-bills
Technical specifications
'Mech type Clan BattleMech
Mass 65 tons
Chassis Bergan Version 6.3 Endo Steel
Armor Compound 12A1 Standard
Engine 325 XL
Communications System Garret L15
Targeting Tracking System RCA Instatrac Version 8
Heat Sinks 15 double
Speed 86 km/h
Jump Jets Clan Standard Type A3
BV (1.0) 2,393[2]
BV (2.0) 2,484[1]


Following the move of Clan Ghost Bear to the Inner Sphere, Khan Bjorn Jorgensson ordered the creation of a new BattleMech. The Arcas was designed as a symbol to mark the beginning of a new era, so Loremaster Laurie Tseng named it after a character in the mythology of the Greeks who eventually became the constellation known as Ursa Minor. First produced in 3061, the Arcas is expensive for a second-line 'Mech. It utilizes an XL engine that enables it to move up to 86 km/h and jump jets for a maximum jump capacity of one hundred fifty meters at a time. The Arcas mounts thirteen and a half tons of standard armor, the most a 'Mech of its size can carry.[2]

Weapons and Equipment[edit]

For long range combat, the Arcas carries a Series 7K ER Large Laser in each arm. When the Arcas' opponent closes, it can bring three Smartshot Mk. V Streak SRM-4s and a pair of Kolibri Delta Series Medium Pulse Lasers to bear. These accurate weapons help the second-line warrior once an enemy gets close. Fifteen double heat sinks help keep the 'Mech cool.[2]


  • Arcas 2 
    This variant is used primarily when far from supply lines. It removes the missiles and ER Large Lasers for a pair of ER PPCs and additional double heat sinks.[1] BV (1.0) = 2,681[4], BV (2.0)= 2,835[5]

Design Quirks[edit]

The Arcas has the following Design Quirk:[7]


  • In German products, the unit's proper name was translated to Arkas, which is the common German transliteration from Greek Ἀρκάς.



  1. 1.0 1.1 1.2 1.3 Technical Readout: Jihad, pp. 18–19: "Arcas"
  2. 2.0 2.1 2.2 2.3 Technical Readout: 3067, p. 122-123
  3. MUL online date for Arcas
  4. Combat Operations, p. 113
  5. Record Sheets: 3067 Unabridged, p. 214
  6. Record Sheets: 3067 Unabridged, p. 215
  7. BattleMech Manual, p. 90: Battlemech Quirk Table - Arcas Entry.