WWII Submarine USS Silversides Enters Dry Dock For First Time In Over 50 Years
Our take

The arrival of the WWII submarine USS Silversides at Fincantieri Bay Shipbuilding for its first drydocking in over fifty years represents more than just a routine maintenance undertaking; it’s a tangible connection to a pivotal era in naval history and a testament to the enduring value of preserving maritime heritage. The undertaking also underscores the evolving landscape of naval power projection, particularly when viewed alongside recent developments such as Watch: In a First, US Strikes Iran’s Bandar Abbas Naval Base Using One-Way Attack Sea Drones. The Silversides, a Gato-class submarine renowned for its wartime successes, embodies a generation of technological innovation and strategic importance that continues to resonate today. Its preservation allows for the continued study of wartime submarine technology and operational tactics, providing valuable insights for naval historians and engineers alike. The drydocking itself will involve extensive hull inspections, repairs, and potentially upgrades to maintain its structural integrity and ensure its continued accessibility for educational purposes.
The Silversides’s story reflects a broader trend of renewed interest in undersea warfare and the increasing sophistication of naval defenses and offensive capabilities. The recent deployment of one-way attack sea drones against Iran’s Bandar Abbas naval base, as detailed in Watch: In a First, US Strikes Iran’s Bandar Abbas Naval Base Using One-Way Attack Sea Drones, highlights the shift towards unmanned systems and the increasing complexity of maritime security challenges. While vastly different in technological sophistication, both the Silversides and these modern sea drones represent the persistent human imperative to control and leverage the underwater domain. The contrast is stark, yet the underlying strategic considerations remain remarkably consistent: maintaining maritime dominance, protecting vital sea lanes, and projecting power across oceans. The ongoing advancements in underwater sensor technology, autonomous navigation, and weapon systems are transforming the character of undersea warfare, demanding a continuous reassessment of naval strategies and capabilities. The USS Silversides, as a historical artifact, offers a critical perspective on the evolution of these strategies and technologies.
The meticulous work involved in drydocking a vessel of the Silversides’s age is a significant undertaking, requiring specialized expertise and a commitment to preserving historical accuracy. The process provides an opportunity to document and analyze the submarine's original construction methods, materials, and design features – empirical data that can inform the restoration of other historic vessels and contribute to a deeper understanding of naval engineering history. Furthermore, the preservation of such vessels serves a vital educational purpose. The Silversides, and similar historical submarines, offer a tangible connection to the past, allowing future generations to appreciate the sacrifices made by those who served and to learn from the technological challenges and strategic decisions of a bygone era. The integrated data ecosystem that supports such preservation efforts – encompassing historical records, engineering schematics, and photographic documentation – underscores the increasing importance of data management in historical conservation. Consideration of similar preservation efforts, like those detailed in Watch: In a First, US Strikes Iran’s Bandar Abbas Naval Base Using One-Way Attack Sea Drones, highlight the need for robust documentation across all naval assets, regardless of their operational status.
Looking ahead, the successful completion of the Silversides’s drydocking will not only safeguard a significant piece of naval history but will also serve as a model for the preservation of other historic maritime assets. The increasing integration of advanced sensor technology and data analytics into these preservation efforts – a form of ocean intelligence applied to heritage – promises to yield even more comprehensive insights into the construction, operation, and historical context of these vessels. A critical question moving forward is whether the lessons learned from preserving historic submarines like the Silversides can be applied to the management and analysis of data collected from modern undersea platforms, creating a longitudinal record of ocean conditions and naval activity that spans centuries.


The historic WWII submarine USS Silversides has arrived at Fincantieri Bay Shipbuilding for drydocking.
The submarine was towed to the site, in a 20-hour-long voyage to Sturgeon Bay, since her propellers were removed long ago, but her Fairbanks-Morse diesel engines are still operational.
The celebrated sub will undergo a $3.5 million preservation project led by Valkor Energy Services.
The National Parks Service is also contributing $750,000; however, private donations make up most of the budget.
During the three months of restoration, specialists at the shipyard will focus on hull cleaning, structural inspections, steel renewal, sandblasting, painting and applying protective coatings on the exterior to ensure the submarine remains intact for years to come.
It has not been in dry dock for preservation for over 50 years, according to the USS Silversides Museum.
Its last yard visit was during the Cold War, and now it needs to be preserved well to continue functioning as a museum ship.
“We are honoured to support the preservation of this historic submarine,” said Jeffrey Frank, VP and General Manager of Fincantieri Bay Shipbuilding.
“This project requires the kind of careful planning, skilled trade work, and technical coordination that our team takes great pride in delivering,” he added.
This Gato-class diesel-electric attack submarine was commissioned on December 15, 1941.
It entered service just 8 days after the Pearl Harbor attack and was then deployed to join the war in the Pacific.
Over 14 patrols, the submarine sank 23 Japanese warships and inflicted damage to many more.
USS Silversides is among the top 5 most successful U.S. Navy submarines of the war, having received 12 battle stars for her wartime service and the Presidential Unit Citation, the military’s highest honour.
It is now displayed at the USS Silversides Submarine Museum, Muskegon, Mich.
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