[quote=@Iluvatar]
So I assume the  USS [i]Tulsa[/i] is from an alternate timeline, right? Or did they actually use airships in the Battle of the Atlantic? I can't say I've heard anything about them, if so. 
[/quote]
The actual USS Tulsa was a gunboat but I'm assuming this is a coincidence. [url]https://en.wikipedia.org/wiki/USS_Tulsa_(PG-22)[/url]

As for airships themselves, while not a major element in any army or doctrine they did see use mostly as patrol vessels in war.