Production information
Manufacturer Mitchell Vehicles
Production Year 2460[1][2][3]
Model HEP-2H
Class Heavy
Cost 6,309,188 C-bills
Technical specifications
'Mech type Inner Sphere BattleMech
Mass 75 tons
Chassis Mitchell Heavy HEP
Armor Armorscale with CASE
Engine VOX 225
Communications System Exeter Longscan 100
Targeting Tracking System Tacticon Tracer 150b
Heat Sinks 10 Double Heat Sinks
Speed 54 km/h
BV (2.0) 1,369[1][4][5]


First unleashed by the Terran Hegemony in 2460, the Helepolis is a ponderous BattleMech designed to deliver artillery fire. The 'Mech was proven ineffective on multiple occasions and, following the destruction of the production facilities in 2775, the design was lost during the Succession Wars. The HEP-2H dates to 2567, replacing the 2X.[1]

The Helepolis is a slow heavy 'Mech with a maximum speed of 54 km/h. It has a respectable thirteen tons of armor, however.[1]

When rebels within the Hegemony military launched the September Revolt, the new Director-General, Ian Cameron deployed batteries of Helepolis 'Mechs to keep them pinned down within the capital city of Geneva on Terra.[6]

Weapons and Equipment[edit]

The Helepolis is built around an Armstrong Industries Sniper Artillery Piece. The accurate, long-range fire makes it effective against static defenses. The 'Mech does carry some backup weapons to augment its screening forces. It can defend itself with a Coventry Starfire LRM-10 and Nova Large Laser. If an enemy gets close, the MechWarrior can call upon a Thunderstroke SRM-6 and a Starflash medium laser.[1]


  • HEP-1H 
    The earliest version, designed by Gregory Kean, used standard heat sinks and its primitive engine could only manage 30 km/h. This proved to be a challenge as the early Helepolis needed to completely stop to fire the Sniper artillery and then start moving again before counterbattery fire could destroy the unit. Twenty and a half tons of Primitive Armor protected the Helepolis from enemy fire.[2] The weight and bulk of the primitive systems prevented the designers from installing the long range missiles used on later models[1]. BV (2.0) = 1055[2]
  • HEP-2X 
    the original model of the HEP-2H, which debuted in 2488, identical to the later model in all respects except having 10 single heat sinks instead of 10 double heat sinks (See entry for Helepolis on the BattleTech Master Unit List, as only current source).

Design Quirks[edit]

The Helepolis has the following Design Quirks:[11]



  1. 1.0 1.1 1.2 1.3 1.4 1.5 1.6 1.7 Technical Readout: 3075, pp. 182-183, "Helepolis Profile"
  2. 2.0 2.1 2.2 Experimental Technical Readout: Primitives, Volume 1, p. 7
  3. Era Digest: Age of War, p. 11
  4. Record Sheets: 3075 Unabridged, p. 174
  5. Record Sheets: 3075 Unabridged - Age of War, p. 64
  6. Technical Readout: 3075, p. 182, "Deployment", 2nd paragraph
  7. Record Sheets: 3075 Unabridged, p. 176
  8. Record Sheets: 3075 Unabridged - Age of War, p. 65
  9. Record Sheets: 3075 Unabridged, p. 177
  10. Record Sheets: 3075 Unabridged - Age of War, p. 66
  11. BattleMech Manual, p. 92 - Design Quirk Table - Helepolis Entry.