Production information
Manufacturer TharHes Industries
Production Year 3112[3]
Model URA-2A
Class Heavy
Technical specifications
'Mech type Inner Sphere BattleMech
Mass 65 tons
Chassis URA Quad Endo Steel
Armor Durallex Medium
Engine VOX 325 XL
Communications System TharHes Melpomene HM-33
Targeting Tracking System TharHes Ares-9
Heat Sinks 13 double
Speed 86 km/h (108 km/h with MASC)
BV (2.0) 1,887[1][4]


A product of TharHes Industries' defense plants on Tharkad, the quadrupedal Ursa was a jack of all trades often paired alongside the Scourge to perform risky escort duties or to go on heavy recon missions. Introduced during the third decade of the thirty-second century, the Ursa was popular with mercenary units and with those forces fighting along the border between the Lyran Commonwealth and Clan Jade Falcon.[1][2]

Key to the Ursa's design is its revolutionary gyroscope, which renders the 'Mech exceptionally stable - even in comparison to other quad BattleMechs. The MASC system built into the Ursa in combination with the VOX 325 extralight fusion engine that powers the 'Mech results in a ferocious quadrupedal design that can run at speeds of over 100 km/h; this, combined with the gyro and twelve and a half tons of Durallex Medium armor meant that the Ursa can not only survive full-speed collisions but can do so without falling or the pilot losing control. This led to MechWarriors nicknamed the Ursa "the Rhino" because of the brutal charges it can perform.[1][2]

Weapons and Equipment[edit]

The suite of offensive weaponry carried by the Ursa is divided between the left and right torsos. On each side are a brace of Martell-X Medium X-Pulse Laser, popular with those who regularly fought the Clans; mounted into the right torso is a Thor 40mm Rotary Class 2 Autocannon supplied with a ton of ammunition, while mounted into the left torso is a Defiance 1001 Extended Range Particle Projection Cannon.[1][2]


  • URA-2C 
    A Clantech variant of the Ursa. In addition to being constructed with lighter materials, the URA-2C replaces the Spheroid medium X-Pulse lasers with ER Medium Pulse Lasers and adds a fourteenth double heat sink. BV (2.0) = 2,570.[5][6]

Design Quirks[edit]

The Ursa was subject to the following Design Quirks:[1][2]


The Ursa premiered in the MechWarrior: Age of Destruction game; within this game, additional variants were apparently introduced - the URA-2E, URA-2F and URA-2G. Record sheets have not been published for these variants.

Image Gallery[edit]


  1. 1.0 1.1 1.2 1.3 1.4 1.5 Technical Readout: 3145 Lyran Commonwealth, pp. 38–39: "URA-2A Ursa"
  2. 2.0 2.1 2.2 2.3 2.4 Technical Readout: 3145, pp. 142–143: "URA-2A Ursa"
  3. MUL online date for the Ursa
  4. Record Sheets: 3145 Unabridged, p. 311
  5. Technical Readout: 3145 Lyran Commonwealth, p. 98: "Ursa URA-2C"
  6. Record Sheets: 3145 Unabridged, p. 312