The USS Albacore was the first U.S. Navy vessel designed from the keel up with a true 'teardrop' hull shape.
Its hull design was derived from research into the physiology of albacore tuna to optimize underwater speed and maneuverability.
The ship was capable of speeds exceeding 25 knots, significantly faster than any other submarine of its era.
It served as a testbed for innovative technologies including the X-shaped tail and advanced sonar arrays.
The submarine is permanently dry-docked and sits on a cradle surrounded by landscaped grounds.
The interior is maintained in a configuration close to its final configuration in 1972.
The vessel was transported from the water to its current land-based position using a complex rail system in 1985.
Albacore Park houses the USS Albacore (AGSS-569), a research submarine built in 1953 that served as a prototype for modern U.S. Navy submarine design. The site features a visitor center and allows for self-guided tours through the interior of the decommissioned vessel. Visitors walk through the original control room, crew quarters, and engine compartments. The submarine is permanently dry-docked on a concrete cradle, requiring visitors to navigate ladders and hatches. It was designated as a National Historic Landmark in 1989. The park grounds include a memorial garden honoring submariners lost in service. The site is operated by the Portsmouth Submarine Memorial Association.
The bow of the submarine from the ground level of the park provides the best scale for capturing the unique teardrop hull design.
Wear comfortable, flat-soled shoes with good grip, as you must climb through tight hatches and steel ladders.
The submarine interior can be significantly warmer than the ambient outdoor temperature during summer months.
If you have mobility limitations, you can still view the exterior of the submarine and the memorial garden without navigating the interior hatches.
Do not attempt the interior tour if you suffer from severe claustrophobia or limited mobility, as the hatches are small and the walkways are narrow.
Closed on certain holidays; often operates on a seasonal schedule with extended availability in summer and limited days during winter.
Avoid large backpacks or oversized bags as they are difficult to maneuver through narrow internal passageways.
