See Abwehran Fusion Engine for inner workings.

Civilian Fusion Engines were designs in AF 260 (YE 31) for more cost-effectiveness in mind than anything else. It has to have enough acceleration to transport cargo and people at fast speeds, yet needed a lower power requirement. Because of this, most civilian ships have accelerations comparable to Capital Ships or lower, yet have the energy requirements of Escort Warships.

Accelerations are based on reaching Maximum Attainable Velocity in an hour.