S2Wa reactor

The S2Wa reactor is a naval reactor used by the United States Navy to provide electricity generation and propulsion on warships. The S2Wa designation stands for:

S = Submarine platform
2 = Second generation core designed by the contractor
W = Westinghouse was the contracted designer

After the predictable problems arose with the S2G's use of 347 Stainless Steel caused by the sodium in the liquid sodium reactor in its superheater^[1] the USS Seawolf (SSN-575) had her S2G liquid metal cooled reactor replaced using the spare S2W built for the USS Nautilus (SSN-571). During the conversion, the steam turbines in the powerplant were also re-bladed to utilize saturated, rather than superheated, steam.

References

↑ http://www.new.ans.org/about/officers/docs/seawolf_sfr_sea_story_051712.pdf

United States Naval Reactors

Aircraft carrier	A1W A2W A3W A4W A1B

Cruiser	C1W

Destroyer	D1G D2G

Submarine	S1B S1C S1G S1W S2C S2G S2W S2Wa S3G S3W S4G S4W S5G S5W S6G S6W S7G S8G S9G

List of United States Naval reactors

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