Sky ships are easy to make, relative to a flying vessel on the comparativelly less magical Land below. Their design is almost just like a water sailing vessel, as floating on the interface between a denser and lighter material is what both have to do. However, since oars are not an option, they all must use sails or rotors of some kind. Some newer models use blasts of magical lightning and wind to push themselves around. Some have horizontal sails like wings to catch updrafts. Different materials are used in construction, depending on what layer. Ships in The Doldrums cannot rely on wind at all.