I really wanted to get "R17", but all the "Rxx" plates are reserved for State Representatives in Colorado.
From Hitchhiker's Guide to the Galaxy:
From Hitchhiker's Guide to the Galaxy:
- The aircar rocketed them at speeds in excess of R17 through the steel tunnels that lead out onto the appalling surface of the planet....
R is a velocity measure, defined as a reasonable speed of travel that is consistent with health, mental well being and not being more than say five minutes late. It is therefore clearly an almost infinitely variable figure according to circumstances, since the first two factors vary not only with speed taken as an absolute, but also with awareness of the third factor. Unless handled with tranquility this equation can result in considerable stress, ulcers and even death.
R17 is not a fixed velocity, but it is clearly far too fast.