Production information
Manufacturer Irian BattleMechs Unlimited
Production Year 3055[1]
Model TMP-3M
Class Heavy
Cost 11,924,000 C-bills
Technical specifications
'Mech type Inner Sphere BattleMech
Mass 65 tons
Chassis Technicron Type H Endo Steel
Armor Maximillian 100
Engine Magna 260 XL
Communications System Irian Technologies HMR-35s
Targeting Tracking System Wasat Watchdog W100
Heat Sinks 11 Double heat sinks
Speed 64.8 km/h
Jump Jets Chilton 465
BV (1.0) 1,613[2]
BV (2.0) 1,786[3]


The Tempest is a low-end, heavy 'Mech that is built to pack a powerful punch. To make the most of the Tempest's available weight, the 'Mech is built on a Technicron Type H Endo Steel chassis and is propelled to its top speed of 64.8 km/h by a Magna 260 XL engine. These choices in materials save enough weight for the Tempest to carry a devastating arsenal that is powerful at long and short ranges. The 'Mech's mobility has also been enhanced with four Chilton 465 jump jets that make the Tempest capable of jumping up to one hundred and twenty meters. Finally, the Tempest carries twelve tons of armor which is a respectable amount of protection for a 65 ton 'Mech.

Weapons and Equipment[edit]

For long range firepower, the Tempest carries a Zeus Slingshot Gauss rifle, which provides a devastating long-range punch. For medium to long ranges, the 'Mech has a Sutel Precision Line Large Pulse Laser. When the 'Mech closes to short ranges, it brings its three Diplan M3 medium lasers and its Irian Weapons Works 60mm SRM-6 to bear on an enemy.


  • TMP-3MA 
    This version simply removes the Gauss rifle and replaces it with an AC/10, two tons of ammunition, and an extra Heat Sink. BV (2.0) = 1,425[4]

Design Quirks[edit]

The Tempest has the following Design Quirk:[7]


  • In German products, the unit's proper name was translated to Sturm. The model code was accordingly changed to STR-3M.



  1. MUL online date for the Tempest
  2. Combat Operations, p. 130
  3. Record Sheets: 3055 Upgrades Unabridged, p. 78
  4. Record Sheets: 3055 Upgrades Unabridged, p. 80
  5. Record Sheets: 3055 Upgrades Unabridged, p. 79
  6. 6.0 6.1 Technical Readout: 3150, p. 223
  7. BattleMech Manual, p. 95 Design Quirk Table - Tempest Entry.