Posts: 1453 Joined: July 27th, 2010, 5:58 am
Location: Milan - Italy
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These project were discussed by several authors. In the volume"US Submarines Through 1945 - An Illustrated Design History" writtem by Norman Friedman are gigen the relevant data.
The lenght are: Project 1 400 ft, project 2 490 ft, project 3 i425 ft
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