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Avenger-class mine countermeasures ship

1985 class of American mine countermeasures ships

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General referenceInterpretive dossier study · Crown Archives visual atlas
Record originEnglish Wikipedia
Text licenseCC BY-SA 4.0
Source revisionSep 10, 2026
Entity authorityQ203482
Source-derived summary

The Avenger-class mine countermeasures ships are a class of 14 ships constructed for the United States Navy from 1987 to 1994, designed to clear naval mines from vital waterways. The ships have the hull designator MCM (for mine, countermeasure).

The Avenger-class ships are being replaced by the Freedom and Independence-class littoral combat ships, as well as other MCM platforms, which use unmanned air, surface, and undersea vehicles to detect and destroy naval mines at a standoff distance.

History

Background

In the early 1980s, the U.S. Navy began development of a new mine countermeasures (MCM) force, which included two new classes of ships and minesweeping helicopters. The vital importance of a state-of-the-art mine countermeasures force was strongly underscored in the Persian Gulf during the eight years of the Iran–Iraq War, and in Operations Desert Shield and Desert Storm in 1990 and 1991 when Avenger and Guardian conducted MCM operations.

Avenger-class ships are designed as mine hunter-killers capable of finding, classifying, and destroying moored and bottom mines. The last three MCM ships were purchased in 1990, bringing the total to 14 fully deployable, oceangoing Avenger-class ships. These ships use sonar and video systems, cable cutters and a mine-detonating device that can be released and detonated by remote control. They are also capable of conventional sweeping measures.

Operations

As of 2012, eight Avengers were forward-based: four at Sasebo, Japan with standing crews, and four at Manama, Bahrain, with ten ships' companies on rotational deployments.

Editorial summary

The public source identifies “Avenger-class mine countermeasures ship” as 1985 class of American mine countermeasures ships. This brief keeps that definition visible, then builds a research path around Avenger-class, mine and countermeasures.

Editorial reviewA practical starting point whose main value is the path it opens into stronger specialist and primary sources. The current lead gives the account dated anchors—1987, 1994, 1990, 1991—that can be checked directly. The linked authority record independently contributes the date 1985. Its value is orientation rather than verdict, with Avenger-class, mine and countermeasures providing the first useful test.
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A short description can identify a subject without explaining its stakes. For “Avenger-class mine countermeasures ship”, the useful work is to connect “1985 class of American mine countermeasures ships” to the records capable of establishing context and consequence.

Evidence profile

Vocabulary and entity names are the principal evidence signals here, because they determine the precision of every later search. The source revision retrieved here is dated Sep 10, 2026. The linked authority identifier is Q203482. None of the 1 selected statements returned an explicit reference. The first chronological checks are 1987, 1994, 1990 and 1991.

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Source & attribution

This entry incorporates text from Avenger-class mine countermeasures ship” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.