Long Tom Cannon

Long Tom (new).png
Long Tom Cannon
Production information
Type Ballistic Weapon
Tech Base Inner Sphere Experimental[1]
Year Availability 3012 (LC)[1]
Technical specifications
Heat 20[2]
Damage 20/10
Minimum Range 4
Short Range 1 - 6
Medium Range 7 - 13
Long Range 14 - 20[2]
Extreme Range 21 - 26
Tons 20[3]
Critical Slots 15
Ammo Per Ton 5[2]
Cost (unloaded) 650,000[3]
Ammo Cost (per ton) 20,000[3]
BV (1.0) --
BV (2.0) 329 (cannon), 41 (ammunition)[4]


The Long Tom Artillery Cannon is a scaled down version of the Long Tom Artillery Piece designed for use as an on-board indirect fire weapon. Capable of being mounted on 'Mechs, combat vehicles, and AeroSpace Fighters, the Long Tom Cannon is a snub-nosed version of the artillery piece of the same name. The Long Tom Artillery Cannon fires its shells in an indirect arc, dropping them down on top of enemy units.[1]


Game Rules[edit]

Errata in Tactical Operations now states that the Artillery Cannons may only use standard artillery munitions. As an area-affect weapon, the Long Tom Cannon may not benefit from a targeting computer. Artillery Cannons can target a hex, but never benefit from the -4 to-hit for immobile targets. They may be used for indirect fire using the Indirect LRM Fire rules to determine target numbers, but Artillery Cannons cannot make regular artillery attacks. Missed shots scatter like standard artillery, but divide the scatter distance by one half to account for the smaller propellant charges.[1]


The Piece is manufactured on the following planets:

Model LT-Max[edit]

Manufactured on Manufactured by Typically used in References
Kirchbach Swedenborg Heavy Industries Aithon [5]

Thousand Fire[edit]

Manufactured on Manufactured by Typically used in References
Bithinia Bithinian Ballistics TR-13G Transit [6]


  1. 1.0 1.1 1.2 1.3 Tactical Operations, p. 285, "Artillery Cannons"
  2. 2.0 2.1 2.2 Tactical Operations, p. 404, "Heavy Weapons And Equipment Combat Data"
  3. 3.0 3.1 3.2 Tactical Operations, p. 405, "Heavy Weapons And Equipment Construction Data"
  4. Tactical Operations, p. 383, "Inner Sphere Weapons And Equipment BV Table"
  5. Technical Readout: Prototypes, p. 81, "Produced Aithon Components"
  6. Technical Readout: Prototypes, p. 174, "TR-13G Transit"