The drive system of the living ship Moya. Starbust is a faster-than-light system which appears to use a form of hyperspace but no details have been revealed. The jump to hyperspace - or wherever - is stomach churning, though, which suggests fantastic acceleration and a distortion of space. Most like: Star Trek's warp drive; Vogon Constructor Fleet hyperspace drive from The Hitch-Hiker's Guide to the Galaxy ("I'll never be cruel to a gin and tonic again")