USS Cavalla (SS-244)

Moored in Galveston’s Seawolf Park, USS Cavalla (SS-244) presents a rare chance to study a combat-worked Gato-class submarine in preserved form. Laid down in 1943 by Electric Boat and commissioned in early 1944, Cavalla gained distinction in the Pacific War for tracking a Japanese task force during the run-up to the Battle of the Philippine Sea and for torpedoing the fleet carrier Shokaku, an action that earned a Presidential Unit Citation. Later patrols in the Philippine Sea, South China Sea, and Java Sea added further sinkings and convoy attacks, giving the boat a service record that can be read directly against her surviving structure. Postwar conversion to a hunter-killer submarine fundamentally altered her bow and sail to house the BQR-4 sonar array, so the hull encapsulates two eras of undersea warfare in one artifact. Set against the waters of the Gulf, Cavalla functions as both memorial and technical document, preserving the cramped machinery spaces, torpedo arrangements, and Cold War modifications that defined mid-20th-century American submarine design and operations.