Nah, because they're basically magic items; objects. The turning applies to creatures.
That said, something like the
Quench spell would still rock a fire-elemental powered item because it specifically can affect magic items that use fire. Similar elemental-dispel kind of magic (call it "Vaporize" to get rid of water, "Break" to get rid of earth, and "Block" to get rid of air?) could concievably exist, and if any mage had a
Disjunction, those ships would be in big trouble.
So the logic is sound -- yes, certain in-game effects can REALLY screw with certain elemental-bound items. But not turning. Just a handful of high-level effects (which is why the low-level surplus for Eberron works particularly well; the verisimilitude just wouldn't jive if there were even a handful of vile spellcasters who had even a passing bias against the house that controls it).
"One spell, one thousand screaming voices..."
That said, that's one *great* idea for a high-level Eberron adventure...I was worried that the ol' Eb might not jive too well at high levels...heh. I can imagine it now...a mad Xen'drik witch doctor, imported to the continent from abroad as a curiosity, but truly a mighty high-level wizard, sees these flying ships...and decides to do something about it. The natives, taken totally by surprise by this mild-mannered savage being so incredibly powerful, seek out the best heroes around to stop him...only aparently a few shady members of the competing houses have a certain interest in his success, and give him back-up. Not to mention the witch-doctor's own powerful Planar Allies...and then, if he manages to
Disjunction the ship, how will the PC's save everyone? A few
Feather falls will help, but the ship itself will be ruined...and the reputation of the house will be forever marred...think of how much we avoid companies with a recent plane crash on their record. The face of Eberron's transport for the forseeable future may be revolutionized the moment one high-level mage gets some wacky idea...(I'm reminded of the Hindenburg disaster)
It's things like that that make me think Eberron might not be a total waste.
