S44

“S-44 (SS-155), was one of six E.B. boats extensively modernized during WW II. The refit included the installation of air conditioning, with the unit installed in the crew space abaft the control room, alongside the refrigerator. S-44 was fitted with radar (SJ forward, SD abaft the bridge), a loop antenna built into the periscope shears for underwater reception, & a free flooding structure carrying a 20-mm anti-aircraft gun, with a box for 4-in ready-service ammunition below it. A JK passive sonar, probably installed at Philadelphia during a refit between November & December 1941, was located on the forward deck. On the keel below it was a pair of oscillators.” Drawing by Jim Christley. Text courtesy of U.S. Submarines Through 1945, An Illustrated Design History by Norman Friedman. Naval Institute Press, via Navsource.

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