NAVY OF THE UNITED STATES. 

 . 3. 



509 



DESCRIPTION OF THE STEVENS BATTERY. 



FIG. 1, longitudinal section. All parts below the heavy 

 line representing the armor, are protected from shot 

 and shells. 



A, Boilers. 



B, Engines. 



0, Blowers. 



D, Pumping Engines. 



EE, Stowage. 



F, one of the Steam-loading Cylinders. 



H, Steam Machinery for training the guns. 



1, Helm. 



FIG. 2, Deck Plan. The light part under the guns is 

 the top of the casemates, and is level with the rest of the 

 upper deck. 



FIG. 3, half cross-section, 54 feet aft the centre, through 

 the engines. 



FIG. 4, half cross-section, 40 feet forward the centre, 

 through the boilers. 



THE HULL. 



Length over all, 430 feet. 

 Breadth over all, 53 feet. 

 Depth from upper or gun deck, 28 feet. 

 Draft of water, without coal or stores, 17 feet 2 

 inches. 



Draft of water, with coal and stores, 20 feet 6 inches. 

 Fighting draft, 22 feet 6 inches. 



THE ENGINES AND BOILEES. 



Number of screw-propellers, 2. 



Number of engines, 8. 



Diameter of cylinders, 3 feet 9 inches. 



Length of stroke, 3 feet 6 inches. 



Number of boilers, 10. 



Horse power, 8,600. 



