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"The marine turbine of this type (Curtis turbine) installed in the U.S. Cruiser Salem had seven pressure stages with four velocity steps in the first stage, and three in each of the others. Steam passes from the steam chest through the nozzles, each of which may be closed by a valve operated from the governor. The number open at any one time depends upon the load." —Derr, 1911

Cross Sectional View of U.S.S Salem Steam Engine Showing Curtis Turbines

"The marine turbine of this type (Curtis turbine) installed in the U.S. Cruiser Salem had seven pressure…