
Keel laid: Sep 11, 1940
Launched: Jul 15, 1941
Beam: 22′ 2″ (6.76 m)
Draught: 15′ 5″ (4.70 m)
Length: 252 feet (76.76 m)

U-156 (foreground) and U-507 (background) on 15 September 1942
wiki/German_submarine_U-507
(1942) German sub sinks US ship at mouth of Mississippi.
Also on this day,
907 | Tang dynasty collapses
1328 | Antipope ascends
1949 | Berlin blockade ends