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Photograph of Emergency Control Station of a Dirigible

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Photograph of Emergency Control Station of a Dirigible

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Summary

Original caption: Emergency Control. Action in front of lower fin, looking forward. Rudder wheel and all instruments. Elevator wheel and all instruments. Telegraph and telephone to forward control car.
Committee Papers

The main types of airship are non-rigid, semi-rigid, and rigid. Non-rigid airships, often called "blimps", rely on internal pressure to maintain the shape of the airship. Semi-rigid airships maintain the envelope shape by internal pressure but have a supporting structure. Rigid airships have an outer structural framework which maintains the shape and carries all structural loads, while the lifting gas is contained in internal gas bags or cells. Rigid airships were first flown by Count Zeppelin and the vast majority of rigid airships built were manufactured by the firm he founded. As a result, all rigid airships are sometimes called zeppelins. In early dirigibles, the lifting gas used was hydrogen, due to its high lifting capacity and ready availability. Helium gas has almost the same lifting capacity and is not flammable, unlike hydrogen, but is rare and relatively expensive. Airships were most commonly used before the 1940s, but their use decreased over time as their capabilities were surpassed by those of aeroplanes.

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Date

01/01/1933
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Source

The U.S. National Archives
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emergency
emergency
control
control
station
station
emergency control station
emergency control station
dirigible
dirigible
high resolution
high resolution
emergency control
emergency control
instruments
instruments
control car
control car
rudder wheel
rudder wheel
elevator wheel
elevator wheel
committee papers
committee papers
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ultra high resolution