A JumpPack is silimar to Screamer Wings, but powered by a heavy energy cell instead of jet fuel. Air is vented into the JumpPack and superheated to extreme pressure in the pack. This air is then released through a pair of nozzles to power a short jump.
Unlike the Screamer Wings, whose power supply runs out, the JumpPack can recharge itself by absorbing and superheating air. The JumpPack can hold ten charges. Each charge is good for one jump. The JumpPack can regain one charge per minute. The energy cell is good for 24 hours of operation.
The JumpPack always saves enough energy for deacceleration, even if the flight path of the JumpPack leaves it hanging in empty space. It has a built-in proximity sensor, and automatically deaccelerates when it is about to impact on something, but a Freefall roll is still required to deaccelerate safely. The most dangerous stunt possible with a JumpPack is to attempt to match speeds with another fast-moving vehicle.
The JumpPack is used with the Freefall skill. The DC of jump is 1 per five feet jumped, vertical distance counts double. Breaking a fall of any height requires a Freefall roll of 15.
A roll that is failed by less than five merely indicates a loss of balance, where the jumper ends up prone in the target square. A greater failure indicates that the jumper missed the desired landing spot by a number of feet equal to the margin of failure, sustaining 1d6 subdual damage in the process. Roll a scatter die to determine in which direction the jumper deviates.
The version of the JumpPack described above is standard Marine issue since it is useful for long duration operations. It is, however, not suited for use on worlds without atmosphere.
The Corps maintains an inventory of fuel-powered JumpPacks. These are powered by a binary fuel (no chance of explosion when the JumpPack is hit). The pack holds 100 charges, and can thus be used for 10 minutes of continous operation. Refuelling costs 10 credits.
The fuel-powered JumpPack can be used as a thuster pack in zero-gee. This uses one charge per hour.
Both versions of the JUmpPack cost the same amount.
