Scientific American Supplement, No. 561, October 2, 1886 by Various
page 39 of 163 (23%)
page 39 of 163 (23%)
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of Rome the Admiralty constant comes out 297.6, and for the Normandie
282.8, while a modified constant comes out for the two ships 234.4 and 233.7 respectively, again showing marked agreement. It may be mentioned that in these two ships the engines are of a similar type, being three-crank tandem engines, and the propellers have in both pitch and surface practically the same proportions to the power and speed. The value of these modified constants will probably be found to increase as the speeds increase up to the limit and beyond that point at which wave resistance becomes an important factor. TABLE III ----------------+--------+---------+---------+-------+-------------+ Name. |Length. | Breadth.| Moulded |Midship|Displacement.| | | | draught.| area. | | | | | | | | | | | | | | | | | | | | ----------------+--------+---------+---------+-------+-------------+ |ft. in. | ft. in. | ft. in. | | | | | | | | | City of Rome | 542 6 | 52 0 | 21 5½ | 1031 | 11,230 | | | | | | | | | | | | | Normandie | 459 4 | 49 11 | 19 9¾ | 892 | 7,975 | | | | | | | Furnessia | 445 0 | 44 6 | 22 2½ | 893 | 8,578 | | | | | | | | | | | | | |
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