The modern destroyer is a light, fast, ship that serves a great variety of functions because of its speed, armament, and maneuverability.
It replaced the navy war sloop of the sailing era. Destroyers provide antiair, antisurface, and antisubmarine warfare capabilities. They carry 5-inch guns, a variety of antiship missiles, antisubmarine helicopters, and torpedoes. They range from 133 to 172 m (437 to 563 ft) in length, travel at speeds ranging from 30 to 33 knots, and have crews of about 400 (Destroyers, Modern Destroyer, Light, Fast, Ship Speed, War Sloop of the Sailing Era).
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