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USS  Maryland  (SSBN 773)
USS  Belleau Wood  (LHA-3) refuels USS  Vincennes  (CG 49) during an under way replenishment

Basic Military Requirements (BMR) - Requirement for military advancement
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launchers, two 5r/54 caliber Mk-45 lightweight guns, two   Phalanx   20mm CTWS mounts and six 25mm Mk 38 machine guns. The USS Belleau Wood (LHA 3) (fig 8-23) and the USS  Peleliu  (LHA 45) (fig. 8-24) are examples of amphibious assault ships. The  Wasp-class  LHDs  are  designed  to  embark, transport, and land 2,000 troops and their equipment using transport helicopters in conjunction with a beach assault.  The  Wasp-class  ships  are  the  largest amphibious  ships  in  the  world  (fig.  8-25).  Their vertical  envelopment  is  more  effective  than  older methods of amphibious landings. One feature of this class of ships is the ability to commit the landing force in an assault without being limited to favor- able  beaches.  These  ships  allow  establishment  of beachheads  in  enemy  territory  more  quickly  than older  methods.  When  not  in  used  for  amphibious assaults,  LHDs  have  the  capability  to  assist  in antisubmarine warfare. Amphibious  transport  dock.    Amphibious transport  docks  (LPDs)  are  versatile  ships.  They perform  the  mission  of  amphibious  transports, amphibious cargo ships, and older LSDs. The Navy’s newest  class  of  ships  are  scheduled  to  replace  the Navy’s amphibious fleet. The LPD (fig. 8-26) is a highly reliable,  warfare-capable  ship,  as  well  as  the  most survivable amphibious ship ever put to sea. The LPD incorporates the latest quality of life standards for the embarked  Marines  and  Sailors—they  accommodate women as part of the crew and embarked troops. Dock landing ships.  Dock landing ships (LSDs) (fig. 8-27) were designed to transport and launch a variety of amphibious craft and vehicles with embarked crews and troops. All landing craft operate from a well deck  that is over 300 feet long and 50 feet wide. The types of amphibious craft vary from the newer LCAC (landing craft air cushion) (fig. 8-28) to the conventional LCU  (landing  craft  utility)  or  LCM  (landing  craft mechanized).  The  number  of  amphibious  craft embarked will vary, depending on the type of craft and class of ship. The newer class of LSD is capable of transporting and operating four LCACs while the older classes may embark only three. A newer variant of the LSD will be designed to handle only two LCACs but will have a larger cargo capacity. These ships also have a helicopter platform over the well deck that allows them to conduct limited helicopter operations. 8-22 Student Notes: Figure 8-22.—USS  Seawolf  (SSN 21).







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