Minesweepers are ships that are specifically designed to locate and neutralize naval mines. The United States Navy operates several types of minesweepers, including mechanical, acoustic, and magnetic sweepers. We created our Navy Minesweeper US Navy Challenge Coin in honor of the Minemen of the US Navy.

The Mechanical Minesweepers, also known as “mech sweepers,” use a mechanical arm or cable to physically sweep the sea floor and contact and detonate mines.
Acoustic Minesweepers use sound to locate mines, typically through the use of a towed array of hydrophones.
Magnetic Minesweepers use changes in the magnetic field to locate mines.
All three types of sweepers are used in combination to effectively locate and neutralize mines in a given area.
In addition to minesweepers, the US Navy also operates mine countermeasure ships (MCM), which are equipped with a variety of systems and equipment to detect, locate, and neutralize mines, including sonar, remotely operated vehicles (ROVs), and divers.
Minesweeping is a dangerous and difficult task, as the ships must operate in close proximity to the mines they are attempting to neutralize.
The current minesweepers in the US Navy are Avenger class of ships. They are based on a commercial aluminum catamaran hull and are equipped with various mine hunting and mine sweeping gear. They are also equipped with a helicopter for air support and for carrying out mine hunting operations.
MSO Minesweepers
MSO stands for “Minesweeper, Oceangoing.” MSO minesweepers are a class of oceangoing minesweepers operated by the United States Navy. They are designed to locate and neutralize moored mines, which are mines that are anchored to the sea floor, as well as drifting mines. MSOs are also capable of performing various other tasks such as amphibious operations support, search and rescue, and towing.
The MSO class of ships were built in the 1950s and served through the Vietnam War and the Cold War. They were designed to be capable of sweeping for all types of mines in deep water and were equipped with mechanical, acoustic and magnetic sweep gear. The ships were also equipped with a helicopter for air support and for carrying out mine hunting operations.
The MSO class of ships were decommissioned in the 1990s and replaced by the Avenger-class minesweepers.
Navy Minesweeper Slogans
Slogans are a way for the Navy to express their mission and values. Here are a few examples of slogans that could be associated with Navy minesweepers:
- “Clearing the way for freedom”
- “Keeping the seas safe”
- “Defending freedom, one mine at a time”
- “Minesweeping: A dangerous mission, a necessary duty”
- “Sweeping for peace”
- “Protecting our ships, protecting our nation”
- “Mine-free seas, mission complete”
- “In harm’s way, for the greater good”
- “The silent service, the unsung heroes”
- “Sweeping the seas for a safer tomorrow”
It’s worth noting that these slogans might not be officially used by the Navy but they are in line with the role and mission of the Navy minesweepers.