What is norwegian alta class mine hunter?

The Norwegian Alta class mine hunters are a series of six minesweepers built by the Norwegian shipyard Viksund in the 1990s. They were designed to operate in the shallow waters of the Norwegian fjords and along the coast to locate and destroy mines left over from World War II.

The ships, which have a displacement of 420 tons, are 150 feet long and 28 feet wide. They are outfitted with a range of sensors and equipment, including a synthetic aperture sonar, a variable depth sonar, and a remotely operated vehicle for underwater inspections.

The Alta class mine hunters are equipped with various weapons systems, including a 30mm cannon and .50 caliber machine guns for self-defense. They are also capable of carrying and deploying a range of mine clearance equipment, including mechanical mine clearance systems and a mine sweeping equipment called the Kongsberg HMS "Hydro" system.

The crew of the Alta class mine hunters typically consists of up to 41 personnel, who are responsible for everything from mine clearance operations to ship navigation and maintenance. These vessels have been used in a number of operations in Norway and other parts of the world, including deployments to the Persian Gulf as part of international efforts to clear mines left over from the Gulf War.