Ok, so I've got my own medieval/fantasy setting (which I steal stuff for left and right) and there are airships in the world. I have not completely decided exactly how to work them once the players are to the point where they will become more relevant to them. They are a somewhat risky form of travel as they are mostly rudimentary in function (i.e. they are not, traditionally, magical in nature). They have a hard time with nasty weather for example - so taking one over a mountain range is intended to be a real risk/reward gamble (and if a dragon were to rear it's ugly head you better have a parachute).
I'm curious if there are part of Shadow World that will give some good detail on the airships in the setting. If they fill my requirements I might just pull the specifics from SW into my own setting... if not, I think I'll be going to the drawing board and creating my own stats and skills for them.