Steelhaven (G1)

Steelhaven is a cylinder-shaped Autobot Starship that appeared in the Marvel comic continuity. The ship was under the command of Autobot leader Fortress Maximus and was used to find a peaceful planet for he and his Autobots to inhabit away from the war on Cybertron. Unfortunately the ship was followed by Scorponok and his Decepticon crew. Both groups ended up travelling to Nebulos, where they developed the Headmaster technology.

From Teletraan I: The Transformers Wiki, a Wikia wiki.