The US Navy is looking to expand its stockpile of Hammerhead underwater mines under an ongoing contract with General Dynamics Mission Systems.
The company was initially awarded a $92.9-million contract in 2022 to design, test, and deliver Hammerhead Encapsulated Effector systems, followed by a $20.7-million contract modification in 2024 to exercise additional options. A recent notice from the Naval Sea Systems Command indicates that further quantities may be procured to meet operational requirements for fiscal year 2027, although exact numbers were not disclosed. The notice also stated that General Dynamics Mission Systems remains the only supplier capable of delivering the systems within the required timeframe.
The Hammerhead system is designed for anti-submarine warfare, capable of detecting, classifying, and engaging hostile submarines. As a moored mine, it is deployed in strategic maritime chokepoints such as ports and straits, where it remains anchored until its sensors identify a target, triggering the launch of a Mk 54 torpedo.
Due to its autonomous functionality after deployment, the Navy is exploring the use of uncrewed underwater vehicles (UUVs) for deployment, including platforms like Orca, developed by Boeing, with initial prototypes delivered in 2023.
The Hammerhead program complements other naval mine systems, such as the Mk 68 Clandestine Delivered Mine and the Quickstrike Extended Range, which is based on a 2,000-pound general-purpose bomb.
