This is a good article. Follow the link for more information. BB61 USS Iowa BB61 broadside USN. mechanics of engineering materials benham pdf August 1984 during a firepower demonstration after her recommissioning.
1945 at war’s end, and both hulls were scrapped in 1958. Ultimately, all four ships were stricken from the Naval Vessel Register and released for donation to non-profit organizations. Pacific war plan against Japan. War planners anticipated that the US fleet would engage and advance in the Central Pacific, with a long line of communication and logistics that would be vulnerable to high-speed Japanese cruisers. 30 knots were seriously considered. 35,000 tons to 45,000 tons and gun caliber from 14-inch to 16-inch.
Japan refused to sign the treaty and in particular refused to accept the 14-inch gun caliber limit or the 5:5:3 ratio of warship tonnage limits for Britain, United States, and Japan respectively. This, in addition to circulation of rumors of Japanese capital ships violating naval treaties, resulted in the three treaty powers, the United States, Britain, and France, invoking the escalator clause in June 1938. Three improved plans—”A”, “B”, and “C”—were designed at the end of January. A” it had a top speed of 32.
It also carried only nine 16-inch guns, in three triple turrets. These designs were able to convince the General Board that a reasonably well-designed and balanced 33 knot battleship was possible within the terms of the “escalator clause”. However, further studies revealed major problems with the estimates. Along with this came the associated weight in supporting these new strains: the structure of the ship had to be reinforced and the power plant enlarged to avoid a drop in speed. An apparent savior appeared in a Bureau of Ordnance preliminary design for a turret that could carry the 50 caliber guns in a smaller barbette. This breakthrough was shown to the General Board as part of a series of designs on 2 June 1938. However, the Bureau of Ordnance continued working on a larger barbette design, while the Bureau of Construction and Repair utilized the smaller barbettes in the final planning of the new battleships.
As the bureaus were independent of one another, they did not realize that the two plans could not go together until November 1938, when the design was in the final stages of refinement. By this time, the ships could not use the larger barbette, as it would require extensive alterations to the design and would result in substantial weight penalties. Bureau of Ordnance if it had occurred to him that Construction and Repair would have wanted to know what turret his subordinates were working on “as a matter of common sense”. Chairman of the House Naval Affairs and Armed Services Committee. The result of this was clearly beneficial: “The prospective effect of flooding was roughly halved and the number of uptakes and hence of openings in the third deck greatly reduced. Yet the four largest battleships the US Navy produced were not much more than 33-knot versions of the 27-knot, 35,000 tonners that had preceded them. The principal armament improvement was a more powerful 16-inch gun, 5 calibers longer.
Ten thousand tons was a very great deal to pay for 6 knots. A multicolor cutaway of a 16in gun turret. Within the cutaway black lines point to various areas and objects of note, at the other end of the black lines English labels are given for identification purposes. An overhead view of a large ship with a teardrop shape firing guns toward the top of the image. 38-caliber guns during a target exercise. The maximum firing rate for each gun is two rounds per minute.