The Quadex Kyromaster engine was an ion engine which powered the Cloud car. Also, one version of the Slayn & Korpil B-wing fighter incorporated a single Kyromaster, its thrust directed through four ducts. Alternately, four Slayn & Korpil fusial thrust engines were utilized.
- The Star Wars Sourcebook (First mentioned)
- Heir to the Empire Sourcebook
- Star Wars Sourcebook, Second Edition
- The Essential Guide to Vehicles and Vessels
- The Thrawn Trilogy Sourcebook