Rotary AC/2

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Rotary AC/2
Production information
Type Ballistic (Direct, Rapid Fire)
Tech Base Inner Sphere (IS) Standard
Clan Experimental[1]
Year Availability 3062 (FS)[2]
Technical specifications
Heat 1/shot[3][4]
Damage 2/shot[3][4]
Short Range Inner Sphere = 1-6[3]

Clan = 1-8[4]

Medium Range Inner Sphere = 7-12[3]

Clan = 9-17[4]

Long Range Inner Sphere = 13-18[3]

Clan = 18-25[4]

Aerospace Range Inner Sphere = Medium[3]

Clan = Extreme[4]

Tons 8[3][5]
Critical Slots Inner Sphere = 3[3]

Clan = 4[5]

Ammo Per Ton 45[3][3]
Cost (unloaded) 175,000[5]
Ammo Cost (per ton) 3,000[5]
BV (1.0) 118[citation needed]
BV (2.0) Inner Sphere: 118[6] / 15 (Ammo)[6]

Clan: 161[7] / 20 (Ammo)[7]


Developed in 3062 by the Federated Commonwealth, the Rotary Autocannon/2 is based only loosely on the Autocannon/2. While it has the same bore, it is capable of firing up to six times as many rounds as its standard cousin, allowing it to deal three times the damage of even an Ultra AC/2. The weapon may be use to fire up to six times in a turn, with each additional shot giving the potential for increased damage. At the same time, each extra shot increases the amount of heat the autocannon builds and increases the chance for a jam. Like Ultra autocannons, Rotary autocannons are unable to make use of special munitions.[2]

Clan Diamond Shark engineers created their own version of the RAC/2 in 3069 and go to full production in 3073.[1]


The Rotary AC/2 is manufactured on the following planets:

Brand Planet Company Used by References
Mydron Model RD Unknown Unknown AS7-D3 Atlas III [8]
Mydron Tornado Gulkana Yeffters Weapons Factory  ??? [citation needed]


  1. 1.0 1.1 Tactical Operations, p. 286, "Clan Rotary Autocannon (RAC)"
  2. 2.0 2.1 TechManual, pp. 207-208, "Rotary Autocannon"
  3. 3.0 3.1 3.2 3.3 3.4 3.5 3.6 3.7 3.8 3.9 TechManual, p. 341, "Inner Sphere Heavy Weapons And Equipment Table"
  4. 4.0 4.1 4.2 4.3 4.4 4.5 Tactical Operations, p. 404, "Heavy Weapons And Equipment Combat Data"
  5. 5.0 5.1 5.2 5.3 Tactical Operations, p. 405, "Heavy Weapons And Equipment Construction Data"
  6. 6.0 6.1 TechManual, p. 317, "Inner Sphere Weapons And Equipment BV Table"
  7. 7.0 7.1 Tactical Operations, p. 384, "Clan Weapons And Equipment BV Table"
  8. Technical Readout: 3145 Federated Suns, pp. 48-49, "AS7-D3 Atlas"