Fusion Drive

The burnt world of Athas uses a fusion rocket to get from place to place. The rocket was designed by the Kasathas of Athas and later reworked by humans for more fuel efficiency. A fusion drive is nuclear and it burns fuel in fusion reactor and releases it as exhaust. This rocket is very efficient and is compatible with the space fold drive. Unlike the total conversion drive of Oerth, the fusion drive requires more fuel and releases exhaust.