Perpetual FTL Drive

An advanced type of FTL drive that uses power gained from reaction of space dust (mostly hydrogen) at superluminal velocity to power itself to accelerate, thus accumulate more space dust theoretically endlessly in a somewhat similar fashion as a ramjet fusion drive. 

Perpetual FTL drives, also known as self-powering FTL drives, are commonly used by the XC. They either start off quite slowly or cannot start at all however. As such, they are always used alongside conventional FTL drives for relatively short distance travel, such as within a star cluster or to nearby star systems. They are excellent for very long range jumps, and become more optimal at longer ranges. This is why the XC mostly uses them for intergalactic travel, especially because of exponential velocity increase even for very distant galaxies. Though beaten by some technologies, such as the IGWD which is practically instantaneous, the perpetual FTL drive has a very small energy requirement which allows the XC to fit it on almost any ship and making intergalactic travel very easy. Up to a certain speed, the FTL drive can even help power the rest of the ship at the cost of acceleration. The versatility of this technology is apparent when every ship is capable of intergalactic travel.