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September, 1910 Battleships Wyoming and Arkansas The plans and specifications for the first-class battleships, Wyoming and Ar- kansas, authorized by act of congress, approved, March 3, 1909, were completed and circular signed by the secretary of the navy, June 14, 1909, and issued to -the bidders upon request thereafter. The general dimensions and features of each vessel are as follows: Length on load water line, 554 ft. Breadth, extreme, at load water line, 93 ft. 25% in. Mean trial displacement, 26,000 tons. Mean draught to bottom of keel at trial displacement (about), 28 ft. 6 in. Total coal bunker capacity (about), 2,500 tons. Goal and fuel oil 'carried on trial, (4.933 tons. Feed water carried on trial, 187 tons. Speed on trial, not less than 20% knots. TAE Marine. REVIEW Cold Storage Barge Cammell, Laird & Co. have just com- pleted for the Sociedad Anonima, La Blanca, Buenos Aires, a novel cold storage barge for carrying chilled meat from their La Blanca works. The di- mensions of the new barge are: Length between perpendiculars, 207 ft.; breadth moulded, 36 ft. and depth moulded, 22 ft. She is built to Lloyd's scantlings, and has two complete steel decks, and is divided by bulkheads into two large holds. These holds are fully insulated and equipped with the latest arrangement of runner rails and meat hooks for carrying the carcases, and have a special loading chamber on the center extending to the bottom of the ship and fitted with large and insulated DRAWING OF THE Armament :-- Main battery: Twelve 12-in. 0.50-caliber breech loading rifles; two submerged torpedo tubes. : : Secondary battery: Twenty-one 5-in. rapid- fire guns; four 3-lb. saluting guns; -two 1-lb. semi-automatic guns for boats; two 3-in. field pieces; two machine guns, caliber 0.30. Bids for the construction of the above vessels were opened at the department, Aug. 18, 1909, and the contracts award- ed on Sept. 13, 1909, the Wyoming to the Wm. Cramp & Sons Ship & Engine Building Co., of Philadelphia, Pa., at a price of $4,450,000, and the Arkansas to the New York Ship Building Co., of Camden, N. J., at a price of $4,675,000, both to have the department's design of machinery installed. The vessels are to be completed on or before the expiration of 32 months from the date of signing the contract. The contract for the Wyoming was signed, Oct. 14, 1909, and for the Ar- kansas, Sept. 25, 1909. The percentage of degree of comple- tion of the hull on Aug. 1, 1910, was 32.3 per cent for the Wyoming and 39.5 ber cent for the Arkansas. doors to each hold. The capacity of the insulated spaces is 80,000 cu. ft. The vessel has five watertight bulk- heads and a large fore peak tank for trimming purposes, filled and emptied from the engine room. 'The deck equip- ment is very complete, comprising steam _ windlass, two steam winches, steam cap- stan aft and steering gear on captain's house; two steel derrick posts are fitted for working three derricks, and capable of lifting two tons, for loading and dis- charging purposes. Each hold has two large' insulated hatchways, and besides the usual covers, steel rolling covers on rails are provided for covering the hatchways in the event of a_ sudden storm. The vessel is lighted throughout with electric installation, and has large cargo clusters on deck for loading and discharging at night. The four meat holds, which are of - are heavily © approximately equal capacity, insulated with selected granulated cork with linings of p. t. and g. boards, with an interlining of waterproof insulating 3/5 paper. Heavy insulated hatch covers are fitted to each of the hatches and insulated doors are fitted in the midship hatch to form the entrance to the cham- bers from the same. Each chamber is separately insulated so that any tem- perature can be maintained in any one space as required. The refrigerating machinery is throughout of the duplex type, and includes horizontal compound duplex ammonia machine of the marine type, and having high and low-pressure cylinders arranged side by side, driving from the tail rods to horizontal double- acting ammonia compressors. The brine distribution is on the Webb and others patent attemperated system, and the arrangements are such _ that brine of higher or lower temperature BATTLESHIPS Wrominc AND ARKANSAS AS PREPARED BY THE Navy DEPARTMENT. - can be supplied to any of the chambers independently, so that the temperatures can be absolutely and positively con- trolled exactly as required. For the quick loading and discharging of the vessel, each chamber is fitted with a complete outfit of rails, supported from the deck beams, for runner meat hooks. Each rail is controlled by a_ patent switch, so that any quarter loaded in from the main hatch can be run on any rail or into any part of the chamber. In way of the twin hatches at the for- ward and after ends of the vessel an adaptation of Webb and others patent portable hatch rails has been fitted. The rails in wake of each of these hatches are so arranged that they can be lifted out or lifted in with the meat on them, which arrangement greatly facilitates both loading and unloading. This barge marks a great advance in anything pre- viously built for the transportation of meat under refrigerated conditions, both as regards the exact and complete con- trol of temperature and the facilities for loading and discharging.