Encyclopedia

Web resources on key subjects arranged alphabetically. You know, like an encyclopedia!

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Airship

An airship, also known as a dirigible balloon, is a form of aerostat or lighter-than-air aircraft that can fly on its own. Airships are propelled by a less dense lifting gas than the surrounding air. There's a half decent wikipedia entry on Airship over at https://en.wikipedia.org/wiki/Airship