The precise speed and operating depth of the class is classified; official United States Navy sources give a figure of 25 knots submerged, and a maximum depth of 650 feet.
The precise speed and operating depth of the class is classified; official United States Navy sources give a figure of 25 knots submerged, and a maximum depth of 650 feet.
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The weapons of a 688 include four forward-firing 21 inch torpedo tubes, which can fire Mark-48 torpedoes or [[Harpoon missile]]s, and the 31 final boats in the class have twelve vertical-firing tubes which hold Tomahawk missiles.
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The weapons of a 688 include four forward-firing 21 inch torpedo tubes, which can fire Mark-48 torpedoes or [[Harpoon missile]]s, and the 31 final boats in the class have twelve vertical-firing tubes which hold [[Tomahawk missile]]s.
Some boats are equipped with SEAL Delivery systems.
Some boats are equipped with SEAL Delivery systems.