Hyposlip Travel System

The Hyposlip Travel System was a type of starship engine invented by the Brothers Hop Pyleen (TV: The End of the World) on the planet Rex Vox Jax.

One type of engine, the Hyposlip 500 lightspeed podule, was greatly coveted by other races in the galaxy. Astro-race pilot Skip Pyleen attempted to sell the secrets of the Hyposlip-500 technology to the Rakkonoids, but was stopped by the Tenth Doctor. (COMIC: Death Race Five Billion)