Ferris, Richard. [from old catalog] · New York, T. Nelson and sons · leaf 303
unhurt. Giffard afterward built the large captive balloonfor the London Exhibition in 1868, and the still 302 BALLOONS: THE DIRIGIBLE. larger one for the Paris Exposition in 1878. Hedesigned a large airship to be fitted with two boil-ers and a powerful steam-engine, but became blind,and died in… … The Haenlein airship inflated with coal gac and driven by a gas-engine. of the ship. An interior air-bag was to be expandedas the gas was consumed, to keep the shape intact.A second propeller revolving horizontally was in-tended to raise or lower the ship in the air. BALLOONS: THE DIRIGIBLE, 303 It…
Aeronautics
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