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How Hybrid Air Vehicles Is Making World’s Longest Aircraft Longer

Flying Magazine

For example, Airlander 10 requires no runway for takeoff and landing—only a mooring mast and about 1,960 feet of flat space, whether that be tarmac, grass, sand, or even water. But with a top speed of 70 knots indicated airspeed (IAS), its velocity is more comparable to a shipping vessel.