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An airship is a powered, free-flying aerostat that can be steered. Airships divide into rigid, semi-rigid and non-rigid types, with these last often known as blimps. A rigid airship has an outer framework or skin surrounding the lifting gas bags inside it, The outer envelope keeps its shape even if the gasbags are deflated.
The Aircruise would be a solar and hydrogen fuel cell-powered airship. [4] According to its design specifications, it would be 265 m (869 ft) tall containing 330,000 m 3 (12,000,000 cu ft) of air and would carry a payload of 396 t (390 long tons; 437 short tons).
Initial tests of airship designs proved unsatisfactory. [2] However, experiments conducted near the Tuileries from September to October 1793 to produce the required hydrogen without the use of sulphuric acid , which was in short supply, were successful, producing more than 20 cubic metres. [ 3 ]
The Giffard dirigible or Giffard airship was an airship built in France in 1852 by Henri Giffard, it was the first powered and steerable airship to fly. The craft featured an elongated hydrogen -filled envelope that tapered to a point at each end.
The mooring systems contain a large winch with 25,000 feet (7,600 m) of tether cable. Operational availability is generally limited only by the weather (60 percent standard) and routine maintenance downtime. The aerostats are stable in winds below 65 knots (120 km/h). Aerostat and equipment availability averages more than 98 percent system-wide.
Euro Airship is planning an around-the-world, non-stop flight with Solar Airship One. It would be the first flight to make the trip without using fossil fuels.
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A modern airship, Zeppelin NT D-LZZF in 2010 The LZ 129 Hindenburg was the largest airship ever built and was destroyed in 1937. Dirigible airships compared with related aerostats, from the Brockhaus and Efron Encyclopedic Dictionary, 1890–1907