runsforcelery wrote:Yep. but if you read Firedman's history of earlier classes, one of the points he makes consistently is that the "practical" officers were always astounded by "how little" they could get on a given displacement or how much a "minor" tweak would cost. For example, the Iowa class displaced 10,000 tons more than the South Dakota, yet had essentially the same armament and armor. The only real difference between them was about a 5 knot speed advantage, and the "practical" officers were astounded that a 25% increase in displacement (and a radically different hull form specifically modified for high speed) bought only those 5 knots. And, of course, they'd spent the years since the Washington Treaty hearing about what couldn't be done on the mandated tonnage limits. Because of that, many of them imagined (without really thinking about it) that once the treaty limits no longer applied, obviously they could have everything they wanted on an "unlimited" displacement.
Unfortunately, they were wrong.
The Montanas could have been bigger and nastier than they were, but the emphasis would have been on the "bigger." There is no such thing as the perfect ship design; the Montanas were "only" the best battleship design ever produced in terms of total weight of broadside (#1 all time), lethality of shell (#1 all time), fire control (#1 all time), armored protection (#1-#2 all time), endurance (#1 all time), and speed. And North Carolina or South Dakota would have taken Bismarck apart --- quickly --- in any one-on-one engagement, despite Commander Battle Force's questions at the time. What a Montana would have done to Admiral Raeder's pride and joy boggles the imagination!
Of course, Bismarck's displacement was only about 60% of the Montanas', but Yamato would have been their only true peer competitor, and they would have kicked her butt any day of the week and twice on Sunday. Not only did they have a heavier broadside, they were also a knot faster and had 2.2 times her endurance (plus immeasurably better fire control and sensors), despite displacing (depending on your source) between 1,000 and 5,000 tons less at standard displacement.
Friedman is the gold standard for technical histories of the USN design process, and the recurrent thread throughout most of his work is the inevitable compromise inherent in any design . . . and the unending surprise of the "end users" when the technical experts can't give them everything they want in the same platform. So in that sense, there's never been a "satisfactory" capital ship in the USN!
Bismarck isn't really comparable to Montana at all. I would have thought the H-class battleships are, at least the two they laid down. Never mind the ones they only drew up - with 20 inch guns.