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April, 1912 dining rooms are also provided with buffet at the extreme after end. The main saloon, which is approached from the lobby by a wide staircase, is upwards of 400. ft. long and is sub- divided for convenience into several sections, including palm garden, smok- ing, lounge and observation rooms. This saloon has a wainscot of mahogany and upper part of French grey. The ceiling and panel on the cross bulkheads will have decorative paintings by 'William de Leftwich Dodge, of New York. Fresh, clean air will «he throughout the entire vessel electric-driven machines, fitted McCreary company. The will come out in 1913. supplied by four by the Launch of Torpedo Boat Destroyers HE. United States torpedo boat destroyer Henley was launched from the yard of the Fore River Ship Building Co., Quincy, Mass.,.on April 3, be- "ing: christened by Miss Constance Henley Kane, grand daughter of Capt. Robert Henley,. after whom the Henley was named. The Henley's principal dimensions are: Length between perpendiculars.... 289 0 Length 'overall 2: . 222. Di ee 290 SLO Ys Breadth molded sg aie es. es a 26 4% Trial 'displacement <2 .0 54. a 742 tons Trial drauent oe eae 8 4 Battery: 5--3-inch guns. 3--45 c-m torpedo tubes on deck. 2--0.30 caliber automatic guns. The contract was signed on Nov. 28, 1910, and calls for delivery. on Nov.' 28, 1912. The vessel is flush-decked all fore and aft with a top gallant forecastle, giving a high platform for the for- ward gun with good height for conning tower and steering stations while con- tributing to the sea-going qualities of the ship. The captain's and officers' staterooms, wardroom and .conveniences are ar- ranged in the forecastle. while on berth deck immediately below these are quar- crs for part of the petty officers and crew, the remainder being berthed aft. The machinery spaces occupy the amidship portion of the destroyer, the installation consisting of four Fore River-Yarrow water tube boilers. The vessel is fitted with two 18-stage Curtis reversible marine turbines, 63 in. in diameter and capable of developing 5,- 500 S. H. P.. each, at about 585 revolu- tions per minute, which will give the vessel a speed of 29% knots per hour. For the purpose of bettering the economy of consumption of steam at low speeds there has been fitted at the new steamer THE MARINE REVIEW Torpepo Boat DESTROYER HENLEY forward end of each turbine, and .con- rected to it by means of a jaw clutch, a 10%4-in. x 22-in, x 10-in. stroke ver- tical, compound, reciprocating engine, which at 16 knots is intended to de- velop. 400) Ty Hive Po at 280 RP with a steam pressure of 250 lbs. in the high pressure chest. The steam, after passing through this engine, put through the turbine and the energy re- maining ..the steam after passing through the reciprocating engine is ex- iS in TorrPepo Boat DersTROoYFR JARVIS Photo by New York Ship Building Co. 139 IMMEDIATELY AFTER LAUNCHING tracted down to the last ounce of pres- sure in the turbine. Shop tests of this unit conducted by a' naval Board last December, showed, according to the report of the board, that the gain in economy at 16 knots amounted to 33 per cent, at 13 knots, 62.4 per cent, and at 10 knots 98.96 per cent, over the per- formance of the turbine under similar conditions of steam. The contractors - guaranteed that the gain at. 16 knots 'would. be 25 per cent. It is expected ,that the Henley will be the most eco- jomical torpedo boat destroyer in the Us. S. navy at all speeds from 10 knots - up to 31. Subsequent destroyers of a larger displacement are to be fitted with a similar combination of turbine and reciprocating engines. The Henley is of the type of ocean- going destroyer capable of keeping the sea with the battle fleet. Contract was awarded on the same date to the New York Ship Building Co., Camden, N. Ji, for the construc- tion of the sister ship Jarvis, and this vessel was launched from the Camden yard on April 8, being christ- | ened by Miss Jean Knox. McArthur Bros., of Chicago, were the lowest bidders for excavating Sec- tion 2 extending from the proposed - third lock at the Sault to and includ- ing the embankment of the interna- tional bridge. Its bid was $670,235. James Shewan & Sons, East River, New York, have purchased the Pensa- | cola floating dry dock from the gov- ernment. The dry dock is 450 it. long, 108 ft. wide and 47 ft. deep. The dock will be towed to New York to. supplement the existing Shewan plant.