Airships (Zeppelins) are a common sight in this world and every major city has an air dock. Even small towns in the deep wilderness reserve a large clean field some where near by for airships to land. Sea going vessels are a little less common. How do airships fly and why are there so many of them? Airships use an arcane engine to generate an anti gravity field that essentially makes the airship lighter, (they use the Feather Fall spell) allowing them to be lifted more easily by propellers, rockets, or some form of electric propulsion. These arcane engines are powered by electric dynamos, which in turn are powered by diesel fuel or coal. Airships use helium gas bags for additional lift and stability. Ironclad airships that lack helium balloons exist, but are almost exclusively military war ships. Ironclads are also very expensive and take a long time to build, so zeppelin airships are more common. The technology for Ironclads has been around for only 15 years.
A.S (Airship) The most common of all airship prefixes.
E.T.S (Electric Turbine Ship) Pompous fancy prefix use by corporate military airships.
H.M.S (His/Her Majesties Ship) Most common prefix used by state owned airships, including military airships.