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44 , MARINE REVIEW February, 1925 MOTORSHIP CHALLENGER Single screw steel freighter, converted from steam drive. Commis- sioned, February, 1924. Owners, Sun Shipbuilding & Dry Dock Co. Work done by Sun Shipbuilding & Dry Dock Co. Hull Engine Te 3@) At She An: Scena 428 6 Built by Sun S. Dry Dock Co. fe oP A a ec: 410 0 Name: Sun Doxford. : Bean. iti nis ise as nae; 40 Type: Two cycle opposed piston. Dratt, joaded,* it., im... ... 30:26 No. of ‘Cylinders: Four. Gross: tonnare: 2.3) oi ces 7590 BOW I ee oe ss 2234 Deadweight,, tons ....... 11,620 DESOK ON OTs Sie cr wits seminars sce 45% Speedin’ knots: i. << ste se lO gS 5 lee SP A erence 3200 to 3600 Bie Pe aes eres 2740 to 3060 Ree Pe eM ee ee ren 77 to 90 Auxiliaries: All, both deck and engine room electric drive. Average fuel consumed at seat in tons per day, 12. Average fuel consumed in port in tons per day, 1 1/3. Operated by the Isthmian Steamship lines in round the world service. i MOTORSHIP SUPHENCO : : : : stat Single screw steel freighter, built as a motorship, commissione Senceiher. 1923. Owners, Transmarine Lines. Built by Submarine Boat Corp. Hull Engine Te eA ae Lag: NER foes aceeas ag 8357.6 Built by James Craig Engine ee Bee Pigott its tere inate 324 0 Works. : : Beam fh. in. Se nea oesehaere: S 46 0 Name: Craig Diesel Engine, : Draft, loaded, ftedin..g2,2 bers /l6 Type: Four cycle, single acting. Gross: tonnage isiccci soos ee 3545 No. of cylinders: Six. Deadweight tons) = Soi iee sect: oo IM ee eee eee dee ees Hi Speed An knots si es. sss es 1 ee ae Ree tear sik Be Re a oi se 1800 TO PR anos oe ecco cnn cures 100 Auxiliaries: All, both deck and engine room, electric drive. Average fuel consumption in tons per day at sea, 4.60. Average fuel consumption in tons per day in port, 0.60. Operated by the Transmarine Lines in the Port Newark to Gulf service, general cargo. fered does not permit of loading downto coast of the United States where fuel to the shipowner and operator of the the marks, fuel in excess of that needed is cheap. Instances have been reported considerable extra useful deadweight for the diesel ship’s own use, may be where some of these ships have sold available in a diesel ship on account of carried as cargo and sold at port of enough excess oil fuel on return to low fuel consumption. call or point of destination if fuel home ports to pay for all of the fuel In regard to the merits of different there is scarce and prices high. This that they used for their own purposes, types of diesel engines, it may be has been done in some instances par- thus eliminating altogether any fuel said that as far as the steamship own- ticularly by Scandinavian diesel vessels costs. These of course are exceptional er is concerned he would do best to trading between Europe and the west cases but they do point to the value depend upon reliable unbiased techni- MOTORSHIP HENRY FORD II Single screw, steel hull, Great Lakes freighter. Built as a motor- ship and commissioned in June, 1924. Owners, Ford Motor Co. Builders, American Shipbuilding Co. Sister ship, Brnson Forp, com- missioned in July, 1924, Builders, the Great Lakes Engineering Works. Hull Engine Le O pe Ae Stee incite as 612 0 Built by Sun Shipbuilding & Dr eed ee ite ith ee 586 0 Dace Co, . 2 . Bedi este ain. we 62 0 Name: Sun Doxford. Draft, loaded, ft., in. ....20 0 Type: Two cycle, opposed piston Gross! tonnare oto ce 8626 Sod: Deadweight fOnGes cs ee 12,000 No. of cylinders: Four, Service speed loaded in statute Bore, in. .................. 23% miles per hour, 13. Sticke; ine =. 45% De abot. 1 see a 3550 Boe ae rape rate 3000 BR eM wg i ee ae 85 Auxiliaries: All, both deck and engine room are electric drive, furnished by the General Electric Co. Average fuel consumption in tons per day at sea estimated, 12. Average fuel consumption in tons per day in port, estimated, 1 1/3. Operated by the Ford Motor Co. in service on the Great Lakes carrying cargoes of lumber, ore and coal. MOTORSHIP STEELMOTOR Single screw, steel hull freighter for lakes and ocean. Built as a motorship. _ Commissioned: June, 1923. Sister ship STEELVENDOR, com- missioned in July, 1923. Owners, Isthmian Steamship Lines. Built by Federal Shipbuilding Co. Hull Engine Pe OSA ate Sane can 258 3% One: McIntosh & Seymour. Lee Be Res tthe in ee ee 250: <0 Type: Four cycle, single acting. Beaminster 42 9 No. of cylinders: Six. Dratt,loaded,.-th.. sini ss 2020 Bore siti; 6 occhn oe eee 22 Gross: tonnage s... 1695 ptfoke, in. 4 a ee eee 32 Deadweight tons .......... 2717 feed & Uae eer 960 Speed cin’ kote. 2 ee 8% Bee Pye, ie cae ee 750 ReoR. MS a eae .135 Auxiliaries: Deck and engine room, electric drive. Several pumps steam and compressed air drive. Average fuel consumption in tons per day at sea, 4%. Average fuel consumption in tons per day in port, 0.57. Operated by Isthmian Steamship Lines, in service on the Great Lakes and the St. Lawrence, or in the Gulf service, Mobile, Houston and Galveston.