British Rail's Flying Saucer
Dynamoo writes "The Register is carrying a story about a patent for a fusion powered spacecraft filed by British Rail in the 1970s. While the concept may seem silly for a public railway, it seems that the British Rail Research Division employed a large number of aircraft engineers who presumably had some spare time between projects such as the Advanced Passenger Train."
Unfortunately, the Fluxcapacitor has already been patented (Fig. 1 & 2).
My work here is dung.
The BR time dilation effects may be useful for interstellar travel.