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MAINTAINING A PROG Re This Westinghouse turbine- driven blower, including four feet of air duct, occupies a space 28" x 28" x 8' 3", has a capacity of 8500 cu. ft. of air per minute and maintains a static pressure of 21% inches of water at the discharge end. It weighs only 980 pounds. Westinghouse MARINE REview—July, 1931 thedene RECORD IN MARINE ENGINEERING Equivalent Capacity at HALF the weight IGHTWEIGHT machinery in a passenger or freight carrying vessel increases the percentage of total displacement available for pas- sengers or cargo. In a tugboat it increases the fuel capacity and makes possible a longer cruising radius. In these types of vessels, therefore, a saving in machinery weights means greater potential earning power. The required air capacity for the forced-draft system on any vessel can be supplied with a propeller-type blower, the weight of which is less than half that of any other type of blower manufactured today. With the propeller located directly in the air duct, no external founda- tions are required. Safety is inherent. Overspeeding to destruction is impossible even with the suction blocked, and the possible hazard of flarebacks is eliminated. Low power consumption, permanent running balance, absence of high-pitched noise, and extremely small space and low weight char- acteristics make it the logical blower for all types of vessels. Exhaustive tests by the United States Navy have definitely proved its superior efficiency. EO Se Bee we HP Re,