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I don't think so? The only major warships the Navy operates are carriers (Nimitz, Ford), amphibious assault ships (Wasp, America), cruisers (Ticonderoga, the la

by ethbr0 5y ago

I don't think so? The only major warships the Navy operates are carriers (Nimitz, Ford), amphibious assault ships (Wasp, America), cruisers (Ticonderoga, the last of which was commissioned in 1994), and destroyers (Arleigh Burke, forthcoming DDGX). Ignoring the LCSs as a complete cluster#_$&. Maybe you're thinking of the Spearhead-class EPFs [0] and the issue with high sea states? But those were designed from the ground up to be cheap ($180M each) and "good enough" for sealift and harbor basing missions. [0] https://en.m.wikipedia.org/wiki/Spearhead-class_expeditionary_fast_transport https://en.m.wikipedia.org/wiki/Spearhead-class_expeditionar...

bell-cot 5y ago
Probably the USS Independence - https://www.wired.com/2011/06/shipbuilder-blames-navy-as-brand-new-warship-disintegrates/ https://www.wired.com/2011/06/shipbuilder-blames-navy-as-bra... Not a capital ship, nor quickly written off - but 2,300 tons (light) is between the Allen M. Sumner- and Gearing-class (late WWII) destroyers. And "forgot that aluminum hull + steel propulsion hardware + salt water = galvanic corrosion" is a "never bothered to calculate GM" (the metacentric height) level of cluster#_$&'ing incompetence for any shipbuilder.
- ethbr0 5y ago
  Thank god some common sense seems to have finally injected itself into the frigate endeavor via the Constellation pivot. Although we'll see how the engine development on those goes...
- msrenee 5y ago
  Missing galvanic corrosion as a serious concern while making an aluminum and steel ship is pretty impressive. I guess they didn't actually miss it though. In your article, they say a cathodic protection system appeared on a list of things that were originally planned for the ship, but left off in the end. Which is incredible to me. I'm definitely in the learning phase with respect to how different metals and alloys interact, but I'm pretty sure I would have caught that myself. Galvanic corrosion is a pretty well-known issue when dealing with aluminum.

by ethbr0 5y ago

bell-cot 5y ago

Probably the USS Independence - https://www.wired.com/2011/06/shipbuilder-blames-navy-as-brand-new-warship-disintegrates/ https://www.wired.com/2011/06/shipbuilder-blames-navy-as-bra... Not a capital ship, nor quickly written off - but 2,300 tons (light) is between the Allen M. Sumner- and Gearing-class (late WWII) destroyers. And "forgot that aluminum hull + steel propulsion hardware + salt water = galvanic corrosion" is a "never bothered to calculate GM" (the metacentric height) level of cluster#_$&'ing incompetence for any shipbuilder.

ethbr0 5y ago
Thank god some common sense seems to have finally injected itself into the frigate endeavor via the Constellation pivot. Although we'll see how the engine development on those goes...
msrenee 5y ago
Missing galvanic corrosion as a serious concern while making an aluminum and steel ship is pretty impressive. I guess they didn't actually miss it though. In your article, they say a cathodic protection system appeared on a list of things that were originally planned for the ship, but left off in the end. Which is incredible to me. I'm definitely in the learning phase with respect to how different metals and alloys interact, but I'm pretty sure I would have caught that myself. Galvanic corrosion is a pretty well-known issue when dealing with aluminum.