They had transpired to be too "wet" – heavy seas rendered them unusable-and they had been removed from all earlier classes. These casemates were a return to an older design idea American battleship designers had abandoned hull-mounted casemates after the New Mexico class. Similar "stern chasers" had been previously mounted in Nevada, but were omitted from the Pennsylvania class. The Tillman designs all included five casemate guns mounted aft, two on each side and one at the tip of the stern. It also kept the same displacement as Tillman IV.Ĭomparisons to other US Navy battleships Armed instead with 15 18-inch guns in five triple turrets. Tillman IV-2 - The second of the two sub-designs that came out of refinement of Tillman IV.It kept the same displacement as Tillman IV. It dropped the 18-inch belt to an 16-inch belt. Armed instead with 13 18-inch guns in five twin and one triple turret. Tillman IV-1 - One of the two sub-designs that came out of refinement of Tillman IV.Tillman IV - Using the sextuple turrets and layout of "Tillman II", Tillman IV retained the 18-inch belt of "Tillman I" in exchange for dropping speed to 25.2 knots, all with an increase in displacement to 80,000 tons.Tillman III - A return to the armament of "Tillman I", with the reduced armor of "Tillman II" and an increased speed of 30 knots on displacement of 63,500 tons. Her speed was kept the same so the weight for the additional guns was gained by reducing the thickness of the armor belt. Tillman II - Armed with 24 16-inch guns in four superfiring turrets in the same layout as "Tillman I", but with 6 guns in each turret.
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