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"TAE MARINE REVIEW 47 pressure turbines on the wing shafts is a high=pressure and low-pressure cruis- ing turbine, each turbine driving a shaft with one propeller. The steam is supplied by six water tube boilers, each of about 2,400 ee ae Sore rne White-Forster type, made by the same firm. These boilers are fired by luuid fuel, of which she can carry 73 tons, and no coal storage is provided. Fer length is 270 -ft:, her beamv 25 ft her draught 8 ft., and her displacement 765 tons. A BRITISH 36-KNOT NAVAL VESSEL. Messrs. Cammell, Laird & Co. on Dec. 7, launched from their Mersey ship building yards a torpedo boat destroyer which is designed to attain HIGH-PRESSURE TURBINE OF MOHAWK, in the world. The Mohawk is one of five ocean-going destroyers ordered at the end of 1905, and intended to have a radius of action of about 2,000 miles at cruising speed, while her contract speed is for 33 knots. It is stated that she maintained for the six hours of her trial run a mean speed of 3414 knots, while on six runs over a meas- ured mile the mean speed was 34% knots, equal to 40 miles an hour. The Mohawk, like the Ghurka and other vessels of her class, is propelled by turbine machinery, comprising five tur bines--three ahead and two astern-- driving three shafts and propellers, the power of the machinery being equiva- lent to about 14,000 I. H. P. There is one high-pressure turbine on the cen- ter shaft, exhausting into two low- pressure turbines on the wing shafts, the astern turbines being incorporated with the latter. Ahead of the low- HIGH-PRESSURE CRUISER AND LOW-PRESSURE AND ASTERN CYLINDERS | OF MOHAWK. a speed of 36 knots an hour, and will therefore be the speediest boat in the world. She was named Swift and her principal dimensions are: Length, 3459 ft breadth, 34 it. --depeMy 20mmn 4 in. with a displacement at her mean load draught of about 1,800 tons. She will be driven by four turbines, and steam will be generated by oil fuel. The Swift when completed will prove a most important and valuable ad- dition to the British navy, combining as she does by reason of her in- creased dimensions, speed, sea-going and sea-keeping qualities, advantages over any other type of destroyer. It may be pointed out that the Swift, al- though only 1-20th the size of the Lusitania or Mauretania, possesses one- eee half the horsepower and 7,000 more oe ee , horsepower than the battleship HIGH-PRESSURE TURBINE OF MOHAWK. Dreadnought.