The folks over at Dark Roasted Blend lead off their piece on Airship Dreams with the Air Ray “flying structure” — a concept airship that mimics the manta-ray:
Less sci-fi is the SkyFreighter from Millennium Airship, which is designed to haul 500 tons of cargo — including large machinery and equipment intact — at 100 mph for 6000 miles:
Of course, airships scream retro-future, and nothing is more retro-future than an atomic airship:
