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Seagoing Barges Added to Coaling Equipment. Quoted from the Panama Canal Record, Volume XIV, No. 11, 27 October 1920, pp 142-143 (original-ufdc.uflib.ufl.edu/UF00097368/00012) The placing of two 7,500-ton coal barges in the service of the Panama Railroad Steamship Line between Norfolk and Cristobal will increase considerably the ability of the line to furnish coal to the coaling plants at the Canal. One of the barges, the Darien, has been in service for several months, and the other, the Mamei, is now on her first voyage to the Isthmus. The barges are towed by the colliers Achilles and Ulysses. A photograph of the Mamei is shown on this page. Each of the barges is 352 feet in length, over all, 335 feet on the load waterline, by 52 feet beam, with a molded depth of 33 feet. The construction is a single-deck steel barge, with topside tanks through cargo holds, and continuous steel upper deck, with poop and forecastle decks. The hold is divided by 6 bulkheads, with forward peak tanks, 5 cargo holds, and after peak tank. The deck house aft is of steel and serves as pilot house, galley, etc. The officers and crew are quartered in the poop deck. The barge is equipped with sails, to take advantage of the winds in lightening the tow and to afford some means of making headway if the tow should break loose. The 4 masts carry fore staysail, foresail, mainsail, mizzen sail, jigger sail, and spanker. The steam equipment is for the stearing engine, capstan, windlass, towing machines, pumps, winches, heating system, and electric plant, including a radio outfit. Each of the barges has a capacity of 7,500 tons of 2,240 pounds. The gross tonnage of each is 4,074 and the net tonnage, 3,760 tons. They were built at Mobile, Ala., by the Alabama Dry Dock and Shipbuilding Company, under a contract let by the Emergency Fleet Corporation under date of July 20, 1917. One of the Canal colliers and one of the barges together can carry approximately 19,500 tons of coal; on their present voyage, the collier Achilles is bringing 12,110 tons and the barge Mamei has 7,405 tons. With the barge in tow the time of the voyage from Norfolk to Cristobal is about 8 days, as compared with 6 days without a tow. The time required for passage is increased approximately one-third, while the carrying capacity of the unit is increased approximately three-fifths; the net gain in ability to deliver is about one-fourth. It is anticipated that, with the improvements which have been taking place in railway transportation to the seaboard in the United States, the Canal plants can count on receiving 50,000 or 55,000 tons of coal a month in the near future. |