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18 MARINE REVIEW AND MARINE RPOoR?: Photos Showing the Grangesberg's Discharging Apparatus. of engines was determined upon, owing to the vessel's extreme proportions. Her engines are of 2,400 H. P., enabling her to steam 10% knots an hour when fully loaded. To develop this power in a suitable manner the engines were fitted with cylinders of 26, 44 and 72 in. diameter with common stroke of 51 in., sup- plied with steam from three boilers that have a heating surface of 7,060 sq. ft. and which are fitted with Howden's system of forced draft. The steering of the vessel was also the subject of considerable investigation and the results of the arrange- ments fitted have been most satisfactory. Instead of the ordinary rudder the vessel is fitted with a balanced rudder, designed by the Entrance Tanks Store Room 28's 7/9"x 3/68 tilled builders, somewhat on the line of rudders fitted to ordinary gov- ernment cruisers, but having a special fitting of a bottom bearing which is seen indicated in the accompanying line drawing. This kind of rudder enables the steamer to be maneuvered in very close waters with great reliability and evenness on both helms. The builders, in commenting upon the Grangesberg's dis- charging ability which, as noted, is 10,000 tons in 30 hours, make the following notation: "In the Marine Review of May 21 reference is made to an exceptionally smart piece of discharging done by the Hulett clam- shells at Conneaut where 5,000 gross tons deadweight of ore were taken out in 4 hours, which, in proportion, is a sharper dis- charge than the Grangesberg has obtained. It would therefore be interesting to know how many of the clams were working at the steamer, probably a much greater number than could pos- sibly be arranged on the Grangesberg, owing to the fact that her loading arrangement limited the hatchways to six. The record which the Grangesberg has made will be very bad to beat, even Captain and Chart Room 7 16'x 5/6"x 2/2 oe et ee SAS Siting [gio Z. oR TH = 25! x 14 -- r Chain Chain c 1 ll Box Box ts al | 5) ss Be oy ae ara ae oe A Seer 28'x 7'6 x 3'6~ MARINE REVIEW Longitudinal and Midship Sections of the Grangesberg.