Four decommissioned U.S. Navy Avenger class mine countermeasures ships have left Bahrain on what may be their final voyage aboard a larger heavy lift vessel. Avengers had been forward-deployed to the Middle Eastern nation for years, where critical mine countermeasures duties have now passed to Independence class Littoral Combat Ships (LCS).
The public affairs office for U.S. Naval Forces Central Command (NAVCENT) and U.S. 5th Fleet first released pictures of the M/V Seaway Hawk, a contracted semi-submersible heavy lift vessel, carrying the former Avenger class ships USS Devastator, USS Dextrous, USS Gladiator, and USS Sentry last Friday. The Navy released more images and a brief statement yesterday. The date stamps on the pictures show the Avengers were physically loaded onto the Seaway Hawk in Bahrain on January 9.
The Navy acquired 14 Avenger class ships between 1987 and 1994. Four of them are still in service, all of which are forward-deployed in Japan, but are also slated for decommissioning in the coming years.
“Decommissioned Avenger class Mine Countermeasures ships were safely moved as part of ongoing U.S. Navy force transition efforts in the region,” per the statement from NAVCENT. “The movement evolution required detailed planning, coordination, and disciplined execution to ensure the safe transport of the decommissioned MCM’s.”
“Mission partners worked together to maintain operational standards, prioritize safety, and ensure accountability throughout each phase of the evolution,” the statement adds. “These efforts support continued fleet readiness and responsible transition of legacy platforms, while sustaining operational momentum and mission effectiveness across the maritime domain.”
A Navy contracting notice last year said the four decommissioned Avengers would head from Bahrain to Philadelphia, Pennsylvania. Sealift, Inc. subsequently received a contract valued at approximately $7 million for work through February of this year, according to USNI News. In addition, the Navy had said it previously intended to scrap the USS Devastator, USS Dextrous, USS Gladiator, and USS Sentry following their decommissioning. If the ships are due to be broken down, why the decision was made to return them to the United States first is unclear.
The USS Devastator was the last of the Avenger class ships in Bahrain to be decommissioned, which was marked by a ceremony last September.
“For more than three decades, USS Devastator, USS Dextrous, USS Gladiator and USS Sentry have been critical to maritime missions around the globe – defending the freedom of navigation, promoting stability and deterring and defeating efforts by adversaries to harm the innocent,” Navy Vice Adm. George Wikoff, then commander of NAVCENT and 5th Fleet, said at that time. “To all, past and present, who have served on [these ships], thank you for standing the watch, being true trailblazers in the fleet and maintaining a constant presence in our area of operations… what a proud legacy you leave in your wake.”
The 224-foot-long and 1,312-ton-displacement Avengers are designed to both hunt for and neutralize moored naval mines, as well as those sitting on the sea floor.
Each of the ships is equipped with a mine-hunting sonar and surface search radar. Each Avenger can deploy towed minesweeping gear that can mimic the acoustic and magnetic signatures of warships, causing certain types of mines to detonate prematurely. They also have remotely-operated underwater vehicles capable of cutting mooring lines and otherwise interacting with underwater objects to help with rendering mines safe, as well as finding and categorizing them in the first place.
The ships themselves have fiberglass-coated wooden hulls to reduce their own vulnerability, particularly to mines that detect targets by their magnetic signature.
The Navy has long intended to replace the Avenger class ships with LCSs configured for the mine countermeasures duties. However, delays with the LCS mine countermeasures and other mission packages, or “modules,” as well as other persistent issues with both subclasses of those ships, repeatedly delayed those plans. The LCS program had also originally envisioned it being possible to readily reconfigure the ships for different mission sets by swapping out modules. However, the Navy is now deploying LCSs in largely fixed configurations. As it stands now, the LCS mine countermeasures configuration includes towed mine-hunting sonar for the ships, Common Unmanned Surface Vehicles (CUSV) with mine-sweeping gear, and mine detection and neutralization systems carried by embarked MH-60 Sea Hawk helicopters.
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