I love submarines so much that I camped out on the USS Pampanito during Labor Day Weekend 1997. The Pampanito is a WW II fleet submarine built in 1943 at Portsmouth Naval Shipyard, New Hampshire. Pampanito is a Balao class submarine and made six patrols during WWII. She sank six Japanese ships and damaged four others, with a total of over 27,000 tons of enemy shipping sunk.