Scientific American Supplement, No. 299, September 24, 1881 by Various
page 35 of 151 (23%)
page 35 of 151 (23%)
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on the benches running along the inside of the guard railing on the two
sides of the vessel. They are protected from rain by a roof, and from the rays of the sun by a curtain extending along the sides. Although the usual method of landing is fore and aft, gangways have been provided at the sides for side-landing should it become necessary. The general appearance of one of these boats may be likened to that of a floating street-car. Finally, a small apartment, provided with benches, is provided for the use of those passengers who might be taken sick, or for office purposes, if need be. The total weight of one of the boats is divided up as follows: Forty passengers................ 6,200 pounds, Engine and boiler............... 6,600 " Ballast, water, and equipment... 9,900 " Deck and superstructure......... 6,600 " Hull and accessories............12,500 " ______ Total...........................41,800 " or a displacement of about 700 cubic feet, corresponding to a maximum draught of 3.7 feet. The mean speed is 4 knots, or 41/2 miles per hour, a great velocity being unnecessary, owing to the small distance to cross in a port often obstructed by the general movement of vessels taking place therein. The engine is from 16 to 18 horse-power. Its frame is inclined |
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