Sounds possible - except that I'd think aerospike engines would be utterly antiquated by that time. After all, Khan in the 1990s had access to a ship where onboard gravity could be manipulated. Surely this gravity technology would also have propulsion applications, especially for craft that are intended to move stuff up and down a gravity well?
Or did Khan secretly retrofit his DY-100 with artificial gravity which he himself and his fellow superbrains had developed, whereas the rest of the world used DY-100 vessels that had no AG?
Timo Saloniemi