Rigid airship
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A rigid airship is a type of airship in which the envelope is supported by an internal framework rather than by being kept in shape by the pressure of the lifting gas within the envelope, as in blimps
Construction of USS Shenandoah (ZR-1), 1923, showing the framework of a rigid airship
LZ 1, the first successful rigid airship
The extended Spiess airship in 1913
The British R34 in Long Island during the first ever return crossing of the Atlantic in July 1919
Airship
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An airship, dirigible balloon or dirigible is a type of aerostat aircraft that can navigate through the air flying under its own power. Aerostats use buoyancy from a lifting gas that is less dense tha
A modern airship, Zeppelin NT D-LZZF in 2010
Dirigible airships compared with related aerostats, from the Brockhaus and Efron Encyclopedic Dictionary, 1890–1907
U.S. Navy airships and balloons, 1931: in the background, ZR-3, in front of it, (l to r) J-3 or 4, K-1, ZMC-2, in front of them, "Caquot" observation balloon, and in foreground free balloons used for training
The air-filled red balloon acts as a simple ballonet inside the outer balloon, which is filled with lifting gas.