USS Warrior (MCM-10)

USS Warrior (MCM-10)

USS Warrior (MCM-10) is an Avenger-class mine countermeasures ship in the United States Navy designed for rapid detection, classification, and neutralization of sea mines. Built with a wooden hull and advanced minehunting systems, Warrior plays a critical role in securing maritime routes and harbor approaches against explosive threats.

Development and Construction

Contract Award and Keel Laying

The contract to build USS Warrior was awarded to Peterson Builders of Sturgeon Bay, Wisconsin. Her keel was laid on 15 September 1989, marking the start of assembly in a specialized drydock facility tailored for mine warfare vessels.

Launch and Commissioning

Warrior was launched on 8 December 1990 and formally acquired by the Navy on 30 December 1992. She was commissioned into active service on 3 April 1993 and later assigned to Mine Countermeasures Squadron One, with homeport transfers including a move to Sasebo, Japan in 2013.

Design and Construction

Hull Architecture and Materials

The hull of Warrior is constructed entirely of laminated cedar and mahogany planks over a mahogany backbone, coated externally with fiberglass. This low-magnetic, low-acoustic design minimizes the risk of detonating influence mines by reducing her magnetic and sonar signatures to nearly undetectable levels.

Modular Assembly and Maintenance

Warrior’s structure is divided into three primary hull sections assembled in drydock. Each segment is engineered for high-stress minehunting operations and rapid component replacement, allowing maintenance teams to swap out sonar or propulsion modules without extended yard periods.

Propulsion and Maneuverability

USS Warrior combines conventional diesel power with electric drives for both speed and stealth.

• Main propulsion is provided by four Isotta Fraschini 4-stroke diesel engines, each rated at 600 BHP, driving two controllable-pitch propellers through reduction gears for speeds up to 13.5 knots.
• Two auxiliary electric motors enable near-silent maneuvering in minefields, reducing acoustic output during delicate sweeping operations.
• Twin rudders afford precise steering, while variable-pitch props allow fine control of speed and direction in confined waters.

Sensors and Mine Countermeasure Systems

Sonar Suite

Warrior is equipped with the AN/SQQ-32 minehunting sonar system, which integrates a hull-mounted spherical array and a towed variable-depth sonar. This combination delivers high-resolution detection and classification of mines on the seabed and in midwater columns.

Remotely Operated Vehicles

The ship carries AN/SLQ-48 Remotely Operated Mine Neutralization Vehicles. These ROVs carry shaped charges to place explosive charges on detected mines, then withdraw to a safe distance for controlled detonation, ensuring minimal risk to crew and vessel.

Mechanical and Influence Sweeps

For mines that cannot be neutralized by sonar and ROVs, Warrior deploys Oropesa mechanical sweep gear and magnetic/acoustic influence generators. The Oropesa sled mechanically cuts tethered mines from their moorings, while influence sweep arrays mimic ship signatures to trigger non-contact mines safely.

Armament and Defensive Systems

Warrior’s self-defense suite includes:

• Two M2HB .50 caliber machine guns
• Two M60 7.62 mm machine guns
• Two Mk 19 40 mm automatic grenade launchers

These weapons provide close-in protection against small craft and asymmetric threats during mine countermeasure missions.

Performance

• Maximum speed: 13.5 knots
• Economical speed: 8–10 knots
• Endurance: range up to 3,000 nautical miles at economical speed
• Draft: 4.6 m permits operations in shallow coastal waters where mines are often laid

Crew and Accommodation

Warrior is manned by a complement of six officers and 75 enlisted sailors who manage navigation, engineering, mine warfare, and support functions. Berthing compartments and support spaces are organized to accommodate watch rotations, while life-support systems handle air purification, freshwater generation, and waste processing for extended deployments.

Operational History

Since entering service in 1993, USS Warrior has:

• Conducted mine countermeasure exercises off the U.S. East Coast and in the Gulf of Oman
• Rescued four mariners from a sinking vessel off Charleston, South Carolina, in August 1998
• Participated in multinational mine warfare drills in Florida in 2005 alongside sister ships Gladiator, Shrike, Oriole, and Cormorant
• Transferred from Bahrain to Sasebo, Japan, in 2013 to bolster U.S. Seventh Fleet mine countermeasure capabilities

Technical Specifications