. American engineer and railroad journal . e Bi-nnington—which are similar in almost all respects,but were built at the Roach yards in Chester, Pa., about ayear later. Vol. LXVI, No. 0 ] ENGINEERING JOURNAL. 421 THE UNITED STATES NAVY. TiiK of Cruiser No. 12—which been popu-larly the Iiratc, but to which the Navy De-partment has given the name of Co/iiDi/iiii—took place atthe Cramp yards in Philadelphia, July 28. This vesselhas been heretofore described and illustrated, but we re-produce here a general description and a sketch made type, with cylinders 42 in., 59 in. a
. American engineer and railroad journal . e Bi-nnington—which are similar in almost all respects,but were built at the Roach yards in Chester, Pa., about ayear later. Vol. LXVI, No. 0 ] ENGINEERING JOURNAL. 421 THE UNITED STATES NAVY. TiiK of Cruiser No. 12—which been popu-larly the Iiratc, but to which the Navy De-partment has given the name of Co/iiDi/iiii—took place atthe Cramp yards in Philadelphia, July 28. This vesselhas been heretofore described and illustrated, but we re-produce here a general description and a sketch made type, with cylinders 42 in., 59 in. and 93 in. in diameterand 42 in. stroke. It is expected that for ordinary cruis-inj; the central screw alone will be used, giving a speed ofabout 14 knots ; with the two side screws alone a speedof 17 knots can be maintained, and with all three screwsat work at full power a high speed of from 20 to 22 knotscan be got out of the vessel. This arrangement will allowthe machinery to be worked at its most economical num- A -**>$»,- X^. ? -/»*-<;v= OLUMBIA, FOR THE UNITED STATES NAVY. from the Navy Department plans. This shows the Colum-bia as she will appear when completed, except that it hasbeen decided to add a fourth smoke-stack to the three ap-pearing in the sketch. The building of the Columbia was authorized by Con-gress in June, 1890, and the contract for building the shipwas let to the Cramp Company in November, 1890. Theplans for the ship were entirely prepared in the Navy De-partment. The first keel plate was laid on December 30, 1890, andon March 21, 1891, the first frame of the ship was raised,the dimensions of the new vessel, according to the plans,being as follows : Length on mean load-line, 412 ft.;breadth of beam, 58 ft.; normal draft, 23 ft.; displace-ment, 7,550 tons ; maximum speed, 22 knots an hour ; in-dicated , 23,000. As to speed, the contractor guar-antees an average speed, in the open sea, under conditionsprescribed by the Navy De
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectrailroadengineering
