Lord Vorselon utilized an M-class starship in order to escape from Zordoom Prison. The Prog twins also owned an M-Class star cruiser. Vendra piloted one so that she and her brother could escape Terachnos with their Terachnoid hostages, and Neftin later used it to escape from the Nether forces and meet Ratchet on Planet Thram. He then leaves therein to go to Igliak.