O-6 is running at high speed, perhaps a full bell. She is pushing up quite a wake and only a few men are topside on the aft deck.
Photo in the private collection of Ric Hedman
O-6 is seen here in a photo taken from the Thames River Bridge between Groton and New London, CT. This is a WWII era photo, likely taken in 1943-1944. O-6 has been modified for WWII service, with rescue/marker buoys forward and aft, and a gun platform on the aft end of the conning tower fairwater. The original 3"/23 caliber Mk 9 gun has been permanently removed from her forward deck. O-6 and many of her sisters were operating out of Submarine Base New London as training submarines for students at the Submarine School. The two pole like objects on her aft deck are the kingpost and boom for the torpedo loading crane. When not in use the crane was disassembled and stowed in these positions.
In WWII, USN submarines operating in mainland waters for training carried their hull numbers on the side of the fairwater. Submarines operating in the war zone in the Pacific carried no external identification at all.
U.S. Navy photo.
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