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The Kriegsmarine in early 1939 started development of the submarine aircraft carrier - submarines capable to launching aircraft which would be able to have a crew of 110 men and carrying a single Arado Ar 231 floatplane. What if development of this submarine [and better version of OTL submarine floatplane] was successful and Kriegsmarine during ATL World War II had a few [maybe even few tens] submarine aircraft carriers? Would be strike on West Coast with bombs or gas possible?