American Civil War submarines?

Confederates during ACW experimented with submarines - one of them H. L. Hunley sinked unionist ship. What if Confederates build much more submarines and cause serious threat to the North's fleet? Maybe USA after Civil War will build their own submarines and American Fleet during WWI and WW2 will have much more submarines than OTL?
 

TFSmith121

Banned
The problem is the motive power in the era came down to

Confederates during ACW experimented with submarines - one of them H. L. Hunley sinked unionist ship. What if Confederates build much more submarines and cause serious threat to the North's fleet? Maybe USA after Civil War will build their own submarines and American Fleet during WWI and WW2 will have much more submarines than OTL?

The problem is the motive power in the era came down to human muscles; occasionally that could lead to a success, but generally no.

The idea was sound but the technology didn't exist for another two-three decades, really.

Best,
 
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