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A non-rigid airship, commonly called a blimp , is an airship (dirigible) [1] without an internal structural framework or a keel. Unlike semi-rigid and rigid airships (e.g. Zeppelins), blimps rely on the pressure of their lifting gas (usually helium, rather than flammable hydrogen) and the strength of the envelope to maintain their shape. Blimps ...
Numerous rigid airships were produced and employed with relative commercial success between the 1900s and the late 1930s. The heyday of the rigid airship was abruptly ended by the destruction of the Hindenburg by fire on 6 May 1937. The disaster not only destroyed the biggest zeppelin in the world, but the film caused considerable reputation ...
The Airship Ventures company operated zeppelin passenger travel to California from October 2008 to November 2012 [131] with one of these Zeppelin NT airships. [132] In May 2011, Goodyear announced that they would replace their fleet of blimps with Zeppelin NTs, [133] [134] resurrecting their partnership that ended over 70 years ago. Goodyear ...
Zeppelin NT D-LZZR at the airport in Friedrichshafen, 2003. The Zeppelin NT series are a family of semi-rigid airships, combining the design principles of rigid airships and blimps together. [7] The Zeppelin N07, the base model and most commonly constructed to date, are 75 metres (246 ft) long, with a volume of 8,225 cubic metres (290,500 cu ft).
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
The helium-filled blimps are fitted with solar panels and backup batteries to power their engines, have a flight time of up to 12 hours and a range of up to 400 kilometers (249 miles), flying at a ...
The outer shape of the airship is maintained by gas pressure, as with the non-rigid "blimp". Semi-rigid dirigibles were built in significant quantity from the late 19th century but in the late 1930s they fell out of favour along with rigid airships. No more were constructed until the semi-rigid design was revived by the Zeppelin NT in 1997.
As the blimp ascends or descends, the internal ballonets expand or contract to compensate for density changes and to maintain uniform pressure in the envelope. The latest Goodyear airship, the Zeppelin NT, is a departure from this convention, as it is a semi-rigid airship that makes use of a truss inside the envelope to provide some of its ...