Airships past and present, together with chapters on the use of balloons in connection with meteorology, photography and the carrier pigeon (1908)
Hildebrandt, A. (Alfred), b. 1870, Story, W. H. tr · New York, D. Van Nostrand company · leaf 116
d about both horizontal and vertical axes. The sailsare of silk, stretched over bamboo, and are 50 ft. long and 26 ft.broad, with an area of 237 square feet; the weight of the wholemachine together with the driver is only 310 lbs. He hasalready made two ascents in this airship. On the first… … Fig. 50.—Santos Dumonts first flying machine. at a height of 12 ft. from the ground. This aeroplane is ofa totally different nature from the original design of flyingmachine adopted by Santos Dumont; and it cannot be doubtedthat it is the thing of the future. It would be exceedinglydangerous to…
Aeronautics
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