This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1888 edition. Excerpt: ...running obliquely and supported by flexible side-shafts, insures perfect stability to Length of the inflated ellipsoid, . Central ...Read MoreThis historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1888 edition. Excerpt: ...running obliquely and supported by flexible side-shafts, insures perfect stability to Length of the inflated ellipsoid, . Central diameter Volume, Length of car--Nacelle, .... Weights: Balloon and ballonet, ... 869 Silk covering and net, ... 127 Car complete with rigging, etc., .. 152 Rudder, 46 Screw-propeller, 41 Motor, 98 Wheelwork, 47 Shaft 30 Battery complete, 435 Average velocity per second, Diameter of the propeller, Number of revolutions per minute, .. Number of elements employed, ..... 50 m. 42 cent. 8 m. 40 cent. 1,864 cub. m.. 33 m. kilos, kilos, kilos, kilos, kilos, kilos, kilos. kilos. 500 grains, kilos. 500 grains.. 5 m. 50 cent.. 7 in... 30 to 40.. 32 The electric motor was constructed to develop 8.5 horse power upon the shaft, a-d it trans manently by Capt. Renard, Capt. Krebs manoeuvring the rudder. As soon as the propeller was given a rotary movement the aerostat took its course toward the Hermitage of Villebon, which, previous to the ascension, had been designated as its objective. The wind at this moment moved with a velocity of five metres per second, and the balloon moved against it. So soon as arrived at its destination the officer who held the tiller waved a flag, the signal of return, upon which we saw the aerostat luff, describe majestically a half circle of a radius of about 300 metres, and sail back to Meudon. Upon reaching the lawn, whence it had started, 18' attainment of practical ballooning. As Col. Fred Burnaby, an enthusiastic aeronaut, had said but a short time before in discussing the availability of electricity, "to put the case in a nutshell, aerial navigation is a mere question of lightness and force," and the two French officers had undoubtedly succeeded in putting weight and strength in their right...Read Less
New. 217 pages. Reprinted from 1887 edition. New 2013 edition in PAPERBACK is SEWN PERFECT BOUND, much more durable than a standard paperback. This is a quality reprint of an old book of historical value. If the original book was printed in multiple volumes than this reprint is of only a single volume. This is an exact/strict reproduction of text, no changes has been made in respect to the original text. A lot of effort has been made to check and improve each page/scan manually for its quality of text and illustrations (if any, are in b/w). Folded illustrations, if any, are not included in the book. This is not a retyped or an ocr'd book. Index, contents, etc, if any in the original book, are included. This item is printed on demand using good quality natural shade paper. The title of the book, on the cover, is in gold lettering.
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