After reading the GURPS Vehicles book, I thought of a new idea
for a psionic transfer drive. This drive would require a special
convertor/generator that would convert electrical energy into psionic
energy. The development of this convertor would require that a society
have a fairly extensive understanding of psionics.
The psionic energy created by the convertor would then need to be
controlled and processed by several psions, all of whom would have to
have the teleportation skill at an advanced level. The psions would also
need to be very familiar with each other since they would have to be able
to work as one. This requirement would more than likely mean that they
trained and developed their psionic skills together also.
I haven't worked any significant details out concerning this idea
because it would have different effects on each individual GM's campaign.