Ferris, Richard. [from old catalog] · New York, T. Nelson and sons · leaf 306
hip built after this model v^as tried. It was92 feet long, and 30 feet at its largest diameter.The motive power was a Siemens motor run by 24 BALLOONS: THE DIRIGIBLE, 305 bichromate cells of 17 lbs. each. At full speed themotor made 180 revolutions per minute, developing1^ horse-power. The pull was… … Sketch of the Renard and Krebs airship La France, driven by a storage battery. France, with the shape of a submarine torpedo. It was 165 feet long and about 27 feet in diameter at the largest part. It had a gas content of 66,000 cubic feet. A 9 horse-power Gramme electric motor was installed,…
Aeronautics
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