Hyperion

Hyperion is a futuristic Rocket Liner which could carry about 170 passengers from London to New York in under half an hour at an avergage spped of 27,400 kilometers per hour. It could also serve as a ferry to take passengers and cargo into low earth orbit. 

Reference: 

Picture Facts The Universe by James Muirden, 1981, Published by GAlley Press, ISBN 0 86136 975 0, Page 44.