Cliffy B wrote:
SSN wrote:
Who actually decides which ships stay in mothballs and who decides what goes to Sinkex?
I believe its "BuShips" and the decisions are "supposed" to be made on the material condition of the ship vs. its age IE useful remaining hull life. That's my understanding of it, anyone care to elaborate? Dave?

What an excellent question. I have not directly asked, but from the sounds of it, NAVSEA did not want to get rid of the Spruances, just store them instead. They would not tell me directly why the were sunk. Maybe CAPT Potter was right. I would hope that Bush and friends would not have been so shallow.
Fleet Maintenance said there was serious corrosion on many ships. The hull itself was fine, just fine. It was the superstructure that suffered fatigue and cracking. They and a structural manager who worked at Long Beach said that the Spruanceses had remarkably strong hulls. They were far stronger than their ratings. The super structure had issues. It was the super structure that was greatly strengthened on the Kidds and Ticonderogas. The hulls, on the other hand, were the same. I found that very interesting. It seems like there is a real "margin of error" in the accuracy of information concerning why the base displacement and structural strength was different between the three classes based on the DX design: Spruance (DX), Kidd (improved DXG), and Ticonderoga (Aegis DXG).
Whatever...the only thing that matters is tha NAVSEA thinks that the Spruance-class could have been turned into Kidd-class NTU ships with Mk71 (the same configuration that we have discussed here) with the removal of almost 50% of their ASW specific gear. The HM&E modernization of the ships would have pushed their lives to 40-45 years.
What I have figured is that...if the Navy had pursued this project in the upgrades I have suggested, is that they would have pulled the non-VLS ships and converted them first, because the non-VLS (ASROC) ships were especially fitted to receive the 32-cell VLS arrangement forward directly in the place of the ASROC magazine and would not have required as much modification for a 32-cell VLS arrangement forward. The 61-cell ships would have had to be reduced almost all the way back to the original configuration. So, it's best to start with the non-modified ships first.
I also learned that the forward 5" mount could have been replaced with the Mk71 8" gun even on a 61-cell forward arrangement without structural issue. The ship would have only suffered a 2 degree forward trim. It seems, however, that would be way too close to the tolerances that CAPT Potter has pointed to before.
The main thing I have learned is that the Spruance-class hulls as constructed had a HUGE margin for growth, which would have accommodated a DDG with modernized NTU package, a 90-cell VLS arrangement of 32 forward and 64 aft with Mk71 forward and Mk45 Mod2+ 5"/62caliber gun mount aft and still had a safe margin for battle damage.
This arrangement, however, is the maximum for confident modification while maintaining damage control margins.
My training is hard, guys. It’s really hard. I like to sleep a lot now. I hope to get a significant amount of work done on Spruance this weekend. Iowa is just too much more work. I have to focus on training and learning how to hold my breath longer...so I think that the modernized Sprucan is all I will be able to finish
