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'Trials of Battleship Wyoming ~ She Has Established Herself as the Fastest Super-Dreadnaught HE battleship Wyoming, built by Cramps, Philadelphia, has estab- lished herself as the fastest of the super-dreadnought type in the United States navy. She underwent her trials during the latter part of July. Leaving League island navy yard at 11:00 a. m., Monday, July 15; she steamed down the river to Deep Wa- ter point and anchored at 2:20 p. m.,, left Deep Water point 10:25 the fol- lowing morning and proceeded to the Delaware bay, where compasses were adjusted and main engines slightly toned-up and everything put in read- tract for:20.5° knots, per hout,.-that 280.2 revolutions per minute would be required. On. one of the highest speed runs, the maximum number of revolutions per minute made by the 'propellers were 333.61, which by far exceeded the contract requirements. Until the Wyoming made her high- est speed runs her sister ship, the Ar- kansas, buil{at Camden, N. }:,. held what was considered a world's rec- ord for this type of warship, her rec- ord being 21.153 knots, while that of the Wyoming for her average of the highest speed runs was 21.323 knots. BATTLESHIP WYOMING iness for a series of unofficial speed runs en route to the trial course off Rockland, Me. Arriving at Rockland Thursday at 7:45 p. m., work was commenced on the final adjustments of turbine rotors, consisting of in- creasing and decreasing the various dummy clearances as necessary for the efficient and economical opera- tion of the installation and design. Upon the completion of the above, the specified standardization runs over the measured mile course were start- ed, making three runs each, at 10, 12, 15, 17.5, and 20.5 knots; and then five tuns at her highest speed, making a total of twenty-three runs. These runs were completed Friday, July 19, with considerable wind blowing. The curve constructed from these . runs showed that to maintain the re- quired speed as specified in the con- Saturday the four-hour full power trial was started, during which the Wyoming on the second hour of this trial developed the remarkable speed of 22.045 knots, which is declared by naval experts who were aboard to be the fastest time ever made by any battleship or dreadnought in the world of such tonnage and carrying twelve 12-in. guns in her main bat- tery. The average speed for the four- hour full power trial was 21.21 knots. Particulars of the Wyoming Finishing this run fires were cleaned, ashes put overboard, and ship reweighted at sea, and brought down to the trial displacement and the 24-hour, 19-knot speed, coal and water consumption trial was started. Following this the ship was again reweighted, etc., and the 24-hour, 12- Type in the Navy knote speed, coal and water consump- tion test was started and finished 2 p. m., Monday, July 22, when the severe backing tests and the tactica! steam steering diameters of the ship were taken. The two-hour trial of fuel oil and coal combination terminated the gov- ernment tests, when the Wyoming started for the Delaware Capes. The following are the general dimensions of the Arkansas and the Wyoming: Bt, In, enoth "over cally eee es 562 Length between perpendiculars..... 554 Length on: load: water line... 02.2... 554 Extreme beam (beyond: armor).... 93 2% Beam on load water: line. .:........ 92 10% Designed. draught (mean)...-..2... 2826 Displacement at designed draught, TONS 0 oases Ny eUaseiee helo ie ahaae arate 26,000 Load water line displacement per InChy < tONS: teguu ess cei ce es erm 88.4 The hull was designed by the bu- reau of construction and repair of the navy department, on lines simil- ar to those of the Florida and Utah, with high freeboard forward which insures better seaworthy qualities than the previous types of dread- noughts built by foreign nations. Steam is furnished by twelve Bab- cock & Wilcox water tube boilers. The boilers are designed to be com- bination coal and oil burning, and contain the necessary triple balance between oil, coal and air supply. The satisfactory results obtained from the two hour trial clearly demonstrated the possibilities to be derived from the adoption of oil, as the exclusive fuel for battleships. Ships fitted for burning oil alone, will have to have the furnace volumes greatly increased should the same system of air ad- mission remain. ; The saving in fireroom weights and the decrease in the length of the space required for the boilers are predominating factors, which greatly favor the exclusive use of oil for the fuel of battleships. The capacity of the boilers of the Wyoming are such that all steam ma- chinery can be run at full power with an average air pressure in the ash-pits of not more than 2 inches of water. All the pressure parts of the boiler are made of open-hearth steel plate, the tubes of cold drawn seamless steel with no screw joints exposed to the fire. They are fitted in groups of four, in watertight compartments. Two smoke pipes take the waste gases of combustion, each with an area of 104 sq. ft., and.