Improved Jump Jet
From BattleTechWiki
An 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. Developed by Clan Wolf-in-Exile in 3069, thanks to their sharing of the specs with allies of the Arc-Royal Defense Cordon fighting against the Blakists and the espionage efforts of their Crusader breathern, they have spread throughout the Inner Sphere.
