DavidP wrote:
maxim, the Burke's deck at the bow has a higher upward angle compared to the Spruance\Tico hull's which is why the Burkes don't have those bulwarks.
The Spruances also had no bulwarks, but the Ticonderogas need them because of the extra weight. The Arleigh Burke hull appears to be optimised for better seakeeping compared to a Spruance, e.g. regarding lengh/width ratio or the bow form.
Hulls improved regarding stealth and economics in the last decades. Zumwalt is not (yet?) a good example, because it is massively optimised regarding stealth and its seagoing capacities are to be tested (the stability doubts are well-known, some expected because of the tumblehome hull form, but the wavepiercing bow can be an improvement and that design is for sure new and not related to older ships at all). The LCS are too much optimised for speed to be a positive example. But there not only USN designs
Compare e.g. modern Italian or French designs with an Arleigh Burke and there are many details making the Arleigh Burke looking old-fashioned. But there are a lot of new developments in hull design in recent years, e.g. regarding bow forms (X-bow, axe bow etc.), many promising better seakeeping and economics. Actually there is now much more progress than in the second half of the 20th century. But it is mainly applied for offshore ships, some for other types of ships, e.g. cruise ships, but hardly yet for warships.