WEBVTT 00:00.747 --> 00:03.497 (dramatic music) 00:11.375 --> 00:13.798 - [Narrator] Amphibious war ships are designed to 00:13.798 --> 00:15.809 support the Marine Corps in Operational Maneuver 00:15.809 --> 00:18.726 From the Sea and Ship-to-Objective. 00:18.829 --> 00:20.713 The must be capable of sailing in harms way 00:20.713 --> 00:23.655 and enable rapid combat power build up 00:23.655 --> 00:25.822 in the face of opposition. 00:26.027 --> 00:29.206 The Landing Craft Air Cushion, or LCAC, 00:29.206 --> 00:30.882 is a fully amphibious landing craft 00:30.882 --> 00:33.298 capable of transporting the weapon systems, 00:33.298 --> 00:36.017 equipment and personnel of the assault elements 00:36.017 --> 00:38.244 of the Marine Air Ground Task Force 00:38.244 --> 00:41.418 from ship-to-shore and across the beach. 00:41.418 --> 00:43.420 The LCACs are 91 feet in length 00:43.420 --> 00:46.003 ^and weigh about 95 metric tons. 00:46.801 --> 00:49.731 ^Depending on the mission, they can carry crew of five 00:49.731 --> 00:52.231 ^including a 60-75 ton payload. 00:52.612 --> 00:56.416 ^It is armed with M2HB .50 caliber machine guns, 00:56.416 --> 00:59.166 ^M240 7.62 millimeter machine guns 00:59.328 --> 01:03.245 ^and a MK19 MOD3 40 millimeter grenade launcher. 01:04.981 --> 01:07.942 Landing Ship Dock, or LSDs, were designed specifically 01:07.942 --> 01:10.442 to transport and launch LCACs. 01:10.841 --> 01:13.126 It has the largest capacity for LCACs of 01:13.126 --> 01:15.459 any US Navy amphibious ship. 01:15.792 --> 01:17.144 It will also provide docking and 01:17.144 --> 01:18.945 repair services for LCACs 01:18.945 --> 01:21.945 and for conventional landing crafts. 01:22.170 --> 01:24.420 It has a length of 609 feet 01:24.452 --> 01:27.369 ^and weigh about 16,194 metric tons. 01:28.869 --> 01:32.132 ^Depending on the mission, it can carry upwards of 01:32.132 --> 01:35.049 ^1,000 marines, sailors and 4 LCACs. 01:35.216 --> 01:38.774 ^They are armed with 25 millimeter MK38 machine guns, 01:38.774 --> 01:42.653 ^20 millimeter Phalanx Close-In Weapon System mounts, 01:42.653 --> 01:44.100 ^.50 caliber machine guns 01:44.100 --> 01:47.240 ^and two Rolling Airframe Missile mounts. 01:47.240 --> 01:50.851 Landing Platform Docks, or LPDs, are used to transport 01:50.851 --> 01:52.893 as well as land marines and their equipment 01:52.893 --> 01:54.799 by embarked landing craft, 01:54.799 --> 01:57.966 LCACs and amphibious assault vehicles. 01:58.702 --> 02:00.804 They also augment helicopters or 02:00.804 --> 02:03.763 vertical take-off and landing air craft. 02:03.763 --> 02:05.624 These ships support amphibious assault, 02:05.624 --> 02:09.255 special operations or expeditionary warfair missions 02:09.255 --> 02:11.387 and can serve as aviation platforms 02:11.387 --> 02:13.720 for amphibious ready groups. 02:14.055 --> 02:15.846 They are 684 feet in length 02:15.846 --> 02:18.763 and weigh about 25,300 metric tons. 02:19.706 --> 02:20.790 Depending on the mission, 02:20.790 --> 02:23.659 ^they can carry a crew of 400 marines and sailors 02:23.659 --> 02:27.826 ^and embarking landing force upwards of 700 troops, 02:27.980 --> 02:31.342 ^2 LCACs and 14 amphibious assault vehicles. 02:31.342 --> 02:35.743 ^They are armed with MK46 30 millimeter close-in guns, 02:35.743 --> 02:38.210 ^Rolling Airframe Missile Launchers, 02:38.210 --> 02:40.627 ^and .50 caliber machine guns. 02:42.412 --> 02:46.912 The America Class Landing Helicopter Assault, or LHAs, 02:47.334 --> 02:50.120 and Wasp-Class Landing Helicopter Dock, or LHDs, 02:50.120 --> 02:53.424 provide the Marines Corps with a means of ship-to-shore 02:53.424 --> 02:56.824 movement by helicopter as well as movement by landing craft. 02:56.824 --> 03:01.146 LHAs and LHDs have been in major humanitarian assistance, 03:01.146 --> 03:03.288 occupation and combat operations 03:03.288 --> 03:06.545 in which the United States has been involved. 03:06.545 --> 03:09.032 Although both are amphibious assault ships, 03:09.032 --> 03:11.115 they differ in some ways. 03:11.655 --> 03:15.014 The majority of the LHDs are 844 feet in length 03:15.014 --> 03:17.931 and weigh about 42,442 metric tons. 03:19.674 --> 03:23.221 ^Depending on the mission, they can carry around 30 aircraft, 03:23.221 --> 03:25.888 ^1,000 crew members, 1,687 troops 03:26.758 --> 03:28.258 ^and about 3 LCACS. 03:29.736 --> 03:32.070 ^They are armed with Rolling Airframe Missile Launchers, 03:32.070 --> 03:34.147 ^NATO Sea Sparrow launchers, 03:34.147 --> 03:37.655 ^20 millimeter Phalanx Close-In Weapon System mounts, 03:37.655 --> 03:39.738 ^.50 caliber machine guns, 03:39.787 --> 03:42.787 ^and 25 millimeter MK38 machine guns. 03:43.214 --> 03:45.547 LHAs are 855 feet in length, 03:46.209 --> 03:49.126 and weigh about 44,449 metric tons. 03:51.580 --> 03:52.898 ^Depending on the mission, 03:52.898 --> 03:54.665 ^they can carry around 30 aircraft, 03:54.665 --> 03:56.248 ^1,204 crew members, 03:57.562 --> 03:58.645 ^1,687 troops, 03:59.960 --> 04:00.877 ^and 1 LCAC. 04:01.927 --> 04:04.621 ^They are armed with Rolling Airframe Missile Launchers, 04:04.621 --> 04:06.497 ^NATO Sea Sparrow Launchers, 04:06.497 --> 04:10.022 ^20 millimeter Phalanx Close-In Weapon System mounts, 04:10.022 --> 04:12.855 ^and twin .50 caliber machine guns. 04:13.206 --> 04:15.449 Hospital ships may not be amphibious war ships 04:15.449 --> 04:19.253 but they also play a huge role in the Marine Corps. 04:19.253 --> 04:23.968 The USNS Mercy in USNS Comfort are some of the only ships 04:23.968 --> 04:26.828 that do not have combat capabilities. 04:26.828 --> 04:28.742 Instead, they act as hospital ships 04:28.742 --> 04:31.802 providing humanitarian assistance and medical care 04:31.802 --> 04:33.454 wherever they may go. 04:33.454 --> 04:35.704 ^They are 894 feet in length 04:35.834 --> 04:38.336 ^and weigh about 70,000 metric tons. 04:38.336 --> 04:40.720 ^Each ship has about 1,000 beds 04:40.720 --> 04:42.872 ^and provides 12 operating rooms 04:42.872 --> 04:44.752 ^with specialized trauma centers and 04:44.752 --> 04:47.169 ^post care unit beds included. 04:47.675 --> 04:49.145 It's amazing what can be accomplished medically 04:49.145 --> 04:53.893 on these ships both for military personnel and civilians. 04:53.893 --> 04:56.643 (dramatic music)