Blimp Cargo Vehicle: World's First Floating Super-Zeppelin
Barnes Wallis - R100 Rigid Airship
100 Years Of Air Ships and Blimps
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 and semi-rigid airships. Rigid airships are often commonly called Zeppelins, though this technically refers only to airships built by the Luftschiffbau Zeppelin company.