Answers: There is the Walrus HULA (Hybrid Ultra Large Aircraft) program, though its continuation is doubtful. Then here is the SkyCat (Sky Catamaran) concept. Airships will return...
The Lockheed Martin P-791 could be a prospect. Check the RosAeroSystems website.
Not sure that anyone's actually industrial at the moment, but you might find this interesting :-http://www.aht.ndirect.co.uk/airships/in...
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