Jump Jets

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Shadowcat Jump Jets

Jump Jets, often abbreviated to "JJ", enable a Mech or Battle Armor to become airborne briefly. They may only be fired for a limited time (indicated above the speed gauge in Mechs, and next to a Battle Armor's armor/health status)and require time to recharge. They also generate significant heat.

The Final Beta 0.7.0 release introduced a new kind of JJ, called improved Jump Jets, or iJJ


Generally, Jump Jets provide Mechs with several additional tactical options:

  • Accessing terrain features too steep to climb.
  • Quickly jumping to cover behind low hills.
  • Briefly rising from behind cover to assess the battlefield.
  • Jump Sniping (aka Poptarting) from behind cover to fire weapons.
  • Avoiding - to an extent - incoming missile fire.

Improved Jump Jets

Improved Jump Jets (iJJ) trade their lower weight and some of their vertical thrust for better horizontal acceleration, and much better control over both fuel consumption and jumping itself. Particularly advantageous is the ability to thrust sideways rather than only forwards and backwards. This greatly increases a mech's evasive capabilities, like jumping to cover or dodging missiles.

A video showing the differences between both kinds can be found here: Jump Jets Preview

The heat generated by the use of either type of Jump Jets needs to be carefully considered in the overall management of a Mech's heat. For example, firing energy weapons mid-jump could result in a serious heat spike which could damage your Mech.

Battle Armor

Jump Jets are a key Battle Armor defense. Jump Jets accelerate Battle Armors faster and further than Mechs. This agility can make a skilled Battle Armour more difficult to hit.


Developed by the Terran Hegemony in 2471, thirty years after the introduction of the first BattleMech, the Mackie, and first appearing on the Wasp, Jump jets allow 'Mechs to navigate difficult terrain by rocketing over obstacles. Since their invention, jump jets have been adapted for use on other units. By harnessing the power of a 'Mech's fusion engine to superheat air or another suitable fluid, Jump Jets allow a BattleMech to briefly overcome gravity and rocket short distances over the battlefield.

BattleTech referenceJump_Jets

A modern refinement upon the centuries old design of standard jump jets, improved jump jets are twice as large and as heavy as their normal counterparts, but can propel a 'Mech further with less heat build-up.

BattleTech referenceImproved_Jump_Jet


The following Variants equip with Jump Jets or Improved Jump Jets :

Clan JJ Inner Sphere JJ Clan iJJ Inner Sphere iJJ