Modern Developments
The commissioning of the Newport-class in 1969 marked the introduction of an entirely new concept in the design of LSTs. She was the first of a new class of 20 LSTs capable of steaming at a sustained speed of 20 knots (37 km/h). To obtain that speed, the traditional blunt bow doors of the LST were replaced by a pointed ship bow. Unloading is accomplished through the use of a 112-foot (34 m) ramp operated over the bow and supported by twin derrick arms. A stern gate to the tank deck permits unloading of LVTs into the water or the unloading of other vehicles into a landing craft utility (LCU), onto a pier, or directly into the water. Capable of operating with high-speed amphibious squadrons consisting of LHAs, LPDs, and LSDs, the Newport-class LST can transport tanks, other heavy vehicles, and engineering equipment which cannot readily be landed by helicopters or landing craft. The Newport type has been removed from the U.S. Navy, but serves on in the navies of Brazil, Chile, Malaysia, Mexico, Morocco, Taiwan, Spain, in a modified form, Australia and soon with Peru. Indian Navy also maintains a fleet of LSTs.
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