Steampunk'ed Airship

Unlike the zeppelin, these air ships use the power of the worlds magnetic fields to help stay afloat. Also, unlike the zeppelins, using magnetic fields prevents the ship from easily being distorted in a ball of fire. May pirates have retrofitted the hauls of these ships with weapons as weight isn't as much of factor. The ship can maneuver quickly and easily with it's side fins and 3 rear rudders. The main sail does fold down onto the deck and the top can close protecting the ship from weather or invasion. Another nice component to this design is that the ship can fold up it's side pieces and turn into a boat.