. Elements of transportation, a discussion of steam railroad electric railway, and ocean and inland water transportation . ritish transatlantic company. Its;first steamers, ordered in 1839, were put in operation in1840, from which year we may say that the permanenttransatlantic steamship service dates. Comparison of Earliest and Latest Steamers. —The progress,that has been made in ocean transportation is strikinglyshown by comparing the steamers which the Cunard Com-pany put into service in 1840 with their latest creations,,15 207 208 ELEMENTS OF TRANSPORTATION the Mauretania and Lusitania, wh
. Elements of transportation, a discussion of steam railroad electric railway, and ocean and inland water transportation . ritish transatlantic company. Its;first steamers, ordered in 1839, were put in operation in1840, from which year we may say that the permanenttransatlantic steamship service dates. Comparison of Earliest and Latest Steamers. —The progress,that has been made in ocean transportation is strikinglyshown by comparing the steamers which the Cunard Com-pany put into service in 1840 with their latest creations,,15 207 208 ELEMENTS OF TRANSPORTATION the Mauretania and Lusitania, which began running in1908. The Cunarders of 1840 were of 1,140 tons grossregister; they were a little over 200 feet long, and of 35feet beam. Their speed was from eight to ten knots perhour; and, under exceptionally favorable conditions, theymade the passage in two weeks—often three weeks wererequired, especially for the trip westward against windsand currents. Their engines had 740 horse power. TheMauretania and Lusitania have a gross register tonnage of32,500, 28 times that of their early ancestors; their length. Thk of thk C,-uxaki) Link. LargesiL :>\i\[> ailoai lu iiHH).Length, 790 feet. Breadth, 88 feet. Gross register, 32,500 , 68,000 horse-power. * is 790 feet, and they are 88 feet in breadth. They have aspeed of over 25 knots an hour. Their engines, which areturl)ines, develop G8,000 horse power, 92 times the powerof the first Cunarder. The Three General Problems of Steamship Improvement.—To (l(V(h)p the ocean steamship of to-day out of the firstcrude steamshii)s rcMiuircd the solution of tliree generalmechanical i)rol)l(nis: {a) The efficient application ofpower, first by means of paddle wheels, later by means propellers; (h) the mechanical generation of power THE STEAMSHIP 209 ill tlu marine engine; and (c) tlie design and construc-tion of the ship so as to give it larger size and greaterbuoyancy and to increase its speed. It
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Keywords: ., bookcentury1900, bookdecade1920, booksubjecttranspo, bookyear1920
