A team of Schweincopters was used by Agatha as motive power for the Swan Sleigh to escape from the Clank hangars beneath The Refuge of Storms. She and Krosp also referred to them as hogs. There is disagreement among readers as to whether they were built by Agatha or were found by her in the hangar, although the former seems more likely. Although they at first appear to be a cross between a mechanism and living swine, as more of their internal structure is revealed on subsequent pages, they seem to be pure clank.