(03-24-2023 03:12 PM)U_of_Elvis Wrote: They are expanding capacity in Wisconsin for frigate production. They took a known quantity in an Italian frigate and started producing it there, so hopefully it will keep costs in line vs a clean sheet design.
That's not exactly what they are doing, unfortunately. The known quantity Italian frigate, the FREMM, is a capable general purpose (GP) frigate, with emphasis on anti-surface (ASuW) and anti-submarine (ASW) warfare, two areas where the US Navy is sorely lacking capability. Unless you want to send a Burke out to chase subs, and risk losing your anti-air warfare (AAW) capability, there really is no ASW capability. Instead of taking a known ship that plugged a major hole, the USN modified the Constellation to an Aegis (fancy anti-air radar) platform, but without enough missile slots to be an effective AAW ship. My guess is that, particularly since they are planning to build 20 of them, they are seen as cheaper replacements for the Ticonderogas, which the Navy has been trying to get rid of for several years. The problem is that the Connies have 32 missile slots, whereas the Ticos have 122, so there is a tremendous decrease in capability.
The other problem is that the Italian FREMM has a hull mounted sonar dome that draws 8.7 meters (28 feet, 7 inches) of water while the Welland Canal has a max allowable draft of 8.1 meters (26 feet, 6 inches). That meant that unless you can go over Niagara Falls, you can't get to sea from the Great Lakes with a FREMM. So another change is the removal of the sonar dome, which drastically reduces the ASW capability of the Connies.
So you need ASuw and ASW, you adopt a good ASuW/ASW design, modify it to be an AAW ship with not enough AAW missiles to be effective. And without getting into details, they sacrificed a lot of other tradeoffs to make the change to Aegis. As for Aegis itself, it is an amazing system when operating properly, but the Navy is apparently having significant issues keeping it up. I would have preferred a mix of APAR/EMPAR/MFRA (on the FREMM) and SMART-L (on the closely related Horizon class) radars. That would require some offsetting weight reductions, but those can be managed. For one thing, the FREMM really has too much superstructure for good design, partly because of the need to make room for a lot of habitability improvements--some good, some not so.
It's really difficult to figure out the thinking on this.
What I would have done instead:
Replace the Ticos with 20 of a new true cruiser design in the 15,000T range to include Aegis, more missile cells (my target is 192, with 64 convertible into 16 hypersonic/ballistic missile launchers), some larger caliber guns (8 inch probably) and a large flight deck for operating helos and maybe 100 UAVs (with a hangar underneath, from which USVs and UUVs can be launched and recovered over the side). See the WWII era flight deck cruiser at
https://en.wikipedia.org/wiki/Flight_deck_cruiser for a drawing of what it would look like.
Keep 40 Burkes as Aegis AAW destroyers. Enhance their AAW capabilities, maybe giving up some of their limited ASuW and ASW capabilities as trade-offs.
Build 60 FREMMs at a cost of about $750MM each as ASuW/ASW GP escorts.
Build 80 ASW frigates at a cost of about $500MM each.
Because of the depth problem for sonar domes, I would build any destroyers/frigates on the east or west coast. To keep Fincantieri/Marinette in business, I would also build about 30 each of ASW corvettes enhanced for shallow-water ASW and patrol boats (based on Swedish Visby) and allocate those between Marinette and Austal.
One problem we have building a larger fleet is shipyard capacity. To build the 600-ship fleet that I have envisioned, we probably need 1 more nuke sub yard, a new conventional (AIP) sub yard, and 2-3 more surface ship yards. One idea I have with adopting foreign designs is that the much longer production runs that the US offers versus European/Asian home navies would provide economic incentives for builders like Fincantieri and Naval Group and Navantia and Damen and ThyssenKrupp to develop US shipyards like Naval Group did at Itaguai to build the Brazilian Riachuelo class and Brazilian nuke subs.