USS Becuna (SS/AGSS-319), a Balao-class submarine in commission from 1944 to 1969, was a submarine of the United States Navy named for the becuna, a pike-like fish of Europe. During World War II, she conducted five war patrols between August 23, 1944 and July 27, 1945, operating in the Philippine Islands, South China Sea, and Java Sea.

Becuna, a World War II-era submarine, launched into service in January 1944, just nine months after construction started. “Becky” has called Philadelphia home since 1969.

USS Becuna (SS-319) returned to the United States at San Diego on 22 September. Following the war, she remained in active service with the Pacific Fleet conducting the usual peacetime type...

USS Becuna as modified aftger the war. Converted from her basic fleet boat configuration to a streamlined fast underwater submarine known as a GUPPY (Greater Underwater Propulsion Project) type 1A in 1951, Becuna served during the Korean War and Vietnam conflict in the Atlantic and Mediterranean.

USS Becuna is an example of the standard fleet type Balao class submarine that fought against Japan in World War II. USS Becuna made five war patrols and is credited with sinking 3888 tons of Japanese shipping. USS Becuna received four battle stars for her World War II service.

Submarine USS Becuna was commissioned in May 1944. She embarked on five war patrols during WW2, two of which, the first and the third, were deemed successful, having sunk two small vessels and two tankers.

Also like the Olympia, the USS Becuna is the only remaining vessel of her kind – the only existing Guppy 1-A submarine left. As such the Becuna is well worth a visit, and is a fascinating remnant of the United States Navy’s history.

The USS Becuna, a distinguished submarine with a storied history, proudly stands as a National Historic Landmark, offering visitors a captivating glimpse into the remarkable achievements of the United States Navy.