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Updated: October 2, 2026
Modern air-ships are of three general types: RIGID, SEMI-RIGID, and NON-RIGID. These differ from one another, as the names suggest, in the important feature, the RIGIDITY, NON-RIGIDITY, and PARTIAL RIGIDITY of the gas envelope. Hitherto we have discussed the RIGID type of vessel with which the name of Count Zeppelin is so closely associated.