USS S-25, U.S. Navy submarine in Quincy, United States.
The S-25 submarine measured 219 feet in length, featuring two diesel engines and twin electric motors for underwater propulsion through dual propeller shafts.
Initially commissioned by the U.S. Navy in 1923, the submarine operated from Pearl Harbor until 1939 before its transfer to Polish forces in 1941.
The submarine transfer marked a significant moment in Polish-American military cooperation during World War II through the Lend-Lease program.
The submarine carried a crew of 42 members, including 5 officers and 37 enlisted personnel, operating at depths reaching 200 feet.
The submarine completed the first west-to-east underwater crossing of the Atlantic Ocean by any vessel of the Polish Navy.
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