{"id":2696,"date":"2026-04-23T07:58:32","date_gmt":"2026-04-23T05:58:32","guid":{"rendered":"https:\/\/thedefencenews.com\/?p=2696"},"modified":"2026-04-13T10:17:04","modified_gmt":"2026-04-13T08:17:04","slug":"marines-test-cruise-control-swim-feature-on-amphibious-vehicle-prototype","status":"publish","type":"post","link":"https:\/\/thedefencenews.com\/?p=2696","title":{"rendered":"US Marines test \u2018cruise control\u2019 swim feature on amphibious vehicle prototype"},"content":{"rendered":"<p class=\"Paragraph-sc-1tqpf5s-0 bFwqVI body-paragraph body-paragraph\">The vehicles vying to replace the\u00a0Marine Corps\u2019\u00a0aging light armored vehicle fleet hit the\u00a0water\u00a0for the first time earlier this year, completing a series of tests to demonstrate safety and performance across a spectrum of sea conditions and highlighting some new features in the process.<\/p>\n<p class=\"Paragraph-sc-1tqpf5s-0 bFwqVI body-paragraph body-paragraph\">The testing, which involved the variant of the future advanced reconnaissance vehicle, or ARV, equipped with a 30mm autocannon, took place in January and February at Camp Pendleton, California, according to a recent\u00a0Marine Corps news\u00a0release.<\/p>\n<p class=\"Paragraph-sc-1tqpf5s-0 bFwqVI body-paragraph body-paragraph\">Prototypes by two designers, Textron Systems and General Dynamics Land Systems, underwent the water entry, swim and firing drills ahead of an upcoming competition period set to end with a down-select to one company around 2030.<\/p>\n<p class=\"Paragraph-sc-1tqpf5s-0 bFwqVI body-paragraph body-paragraph\">In an exclusive interview with Military Times this month, Phil Skuta, GDLS\u2019s director of Strategy and Business Development for the Marine Corps and Navy, described some of the challenges the new vehicle must overcome, including high-speed water entry and firing the autocannon on the water, both of which can involve weathering large and unpredictable waves.<\/p>\n<p class=\"Paragraph-sc-1tqpf5s-0 bFwqVI body-paragraph body-paragraph\">He also described a new feature GDLS is asking the Marine Corps to evaluate: an \u201cautotrim function\u201d that would allow the ARV\u2019s crew to outsource some of the work of driving the vessel in the water.<\/p>\n<p class=\"Paragraph-sc-1tqpf5s-0 bFwqVI body-paragraph body-paragraph\">\u201cYou can set the course, the azimuth that you want to follow, and the vehicle will automatically stay on that course,\u201d Skuta said. \u201cSo, we\u2019re starting to build in a level of automation so that, while they\u2019re doing, say, a long water-borne movement, that\u2019s just one less thing the crew has to think about.<\/p>\n<p class=\"Paragraph-sc-1tqpf5s-0 bFwqVI body-paragraph body-paragraph\">\u201cThey can think about the other activities involved in not only operating the vehicle but most importantly focusing on the enemy, so they don\u2019t have to focus so much on, \u2018Am I going in the correct direction? And is the vehicle being stable in the water?\u2019\u201d<\/p>\n<p class=\"Paragraph-sc-1tqpf5s-0 bFwqVI body-paragraph body-paragraph\">Skuta said the function was somewhat similar to an aircraft autopilot function, but also like cruise control and automated lane-keeping in a ground vehicle.<\/p>\n<p class=\"Paragraph-sc-1tqpf5s-0 bFwqVI body-paragraph body-paragraph\">\u201cIf you\u2019re out of the lane, you might get a little buzz, so to speak,\u201d he said. That\u2019s more what this is right now \u2014 the first step.\u201d<\/p>\n<p class=\"Paragraph-sc-1tqpf5s-0 bFwqVI body-paragraph body-paragraph\">That\u2019s particularly useful, from GDLS\u2019 perspective, because the ARV\u2019s swim system, separately from the ground automotive system, is piloted via a \u201csmall joystick\u201d by a driver looking at internal screens, underscoring what a chore it is to do manual course corrections. The feature could also help the vehicle adapt to the increasingly automated future, Skuta said.<\/p>\n<p class=\"Paragraph-sc-1tqpf5s-0 bFwqVI body-paragraph body-paragraph\">\u201cWe\u2019re demonstrating by [incorporating] the automated trim course and azimuth function that we can eventually, in anticipation of future requirements, put more automation into the system, as well as robotic controls,\u201d he said.<\/p>\n<p class=\"Paragraph-sc-1tqpf5s-0 bFwqVI body-paragraph body-paragraph\">The ARV is expected to come in three variants: in addition to the ARV-30 autocannon platform there will be a Command, Control, Communications and Computers\/Unmanned Aircraft Systems model, or C4\/UAS, which has previously undergone testing; and a logistics variant, which will be featured in upcoming swim tests, Skuta said.<\/p>\n<p class=\"Paragraph-sc-1tqpf5s-0 bFwqVI body-paragraph body-paragraph\">Textron and GDLS are both set to contract with the Marine Corps as soon as this fiscal quarter for 16 additional prototypes that will enable testing in coming years ahead of the final down-select.<\/p>\n<p class=\"Paragraph-sc-1tqpf5s-0 bFwqVI body-paragraph body-paragraph\">Textron\u2019s vehicle, which it calls the\u00a0Cottonmouth, has six wheels compared to GDLS\u2019 eight.<\/p>\n<p class=\"Paragraph-sc-1tqpf5s-0 bFwqVI body-paragraph body-paragraph\">During the recent evolution, Skuta said, shoreside testing included a bilge pump demonstration, in which the ARV-30 was flooded with water, triggering safety sensors that automatically pump it out \u201clike a water fountain.\u201d<\/p>\n<p class=\"Paragraph-sc-1tqpf5s-0 bFwqVI body-paragraph body-paragraph\">Water safety has been an increased focus since a July 2020 assault amphibious vehicle sinking off the coast of Pendleton, resulting in the deaths of nine service members. A\u00a0malfunctioning bilge pump\u00a0was found to have contributed to the tragedy.<\/p>\n<p class=\"Paragraph-sc-1tqpf5s-0 bFwqVI body-paragraph body-paragraph\">Once in the water, the new vehicle was put through its paces on a five-kilometer swim course to test its maneuverability and stopping distance in calm conditions.<\/p>\n<p class=\"Paragraph-sc-1tqpf5s-0 bFwqVI body-paragraph body-paragraph\">\u201cYou\u2019re just kind of pivoting in the water to show the characteristics of how you can do very tight maneuvering in water spaces,\u201d Skuta said. \u201cAnd you know, that\u2019s pretty important, because the Marines will find themselves crossing rivers and water obstacles while they\u2019re in combat zones. And they need to have a good appreciation for how tight a turning radius the vehicle has in the water.\u201d<\/p>\n<p class=\"Paragraph-sc-1tqpf5s-0 bFwqVI body-paragraph body-paragraph\">Crews also practiced moving the turret around as if preparing for live fire on the water, which affects the vehicle\u2019s center of gravity, he said.<\/p>\n<p class=\"Paragraph-sc-1tqpf5s-0 bFwqVI body-paragraph body-paragraph\">\u201cIn a river-crossing scenario, [if the] enemy presents themselves on the far shoreline, the Marines would fire from the vehicle in the water,\u201d Skuta said. \u201cSo, that gives a good indication of how the turret and the fire control system will stabilize on a target while they\u2019re in that water environment.\u201d<\/p>\n<p class=\"Paragraph-sc-1tqpf5s-0 bFwqVI body-paragraph body-paragraph\">Another tested skill, high-speed water entry, made for one of the \u201cmore fun\u201d events to observe, he said.<\/p>\n<p class=\"Paragraph-sc-1tqpf5s-0 bFwqVI body-paragraph body-paragraph\">The ARV-30 entered the water at progressively higher speeds, topping out at 25 miles per hour and sending a massive water plume into the air.<\/p>\n<p class=\"Paragraph-sc-1tqpf5s-0 bFwqVI body-paragraph body-paragraph\">Notably, for all the testing with GDLS and Textron, Marines from the amphibious vehicles community were able to observe and monitor testing, Skuta said.<\/p>\n<p class=\"Paragraph-sc-1tqpf5s-0 bFwqVI body-paragraph body-paragraph\">While the Marine Corps has not released any specific feedback from the demos, he said the onsite response from the Marines was encouraging.<\/p>\n<p class=\"Paragraph-sc-1tqpf5s-0 bFwqVI body-paragraph body-paragraph\">\u201cA lot of smiles, a lot of thumbs up from what they saw,\u201d Skuta said.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>The vehicles vying to replace the\u00a0Marine Corps\u2019\u00a0aging light armored vehicle fleet hit the\u00a0water\u00a0for the first time earlier this year, completing a series of tests to demonstrate safety and performance across [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":2937,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[28],"tags":[490,102],"class_list":["post-2696","post","type-post","status-publish","format-standard","has-post-thumbnail","category-military-tech","tag-amphibious-vehicle","tag-us-marines"],"jetpack_featured_media_url":"https:\/\/thedefencenews.com\/wp-content\/uploads\/2026\/04\/US-MARINES-VEHICLE.png","_links":{"self":[{"href":"https:\/\/thedefencenews.com\/index.php?rest_route=\/wp\/v2\/posts\/2696","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/thedefencenews.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/thedefencenews.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/thedefencenews.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/thedefencenews.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=2696"}],"version-history":[{"count":3,"href":"https:\/\/thedefencenews.com\/index.php?rest_route=\/wp\/v2\/posts\/2696\/revisions"}],"predecessor-version":[{"id":2938,"href":"https:\/\/thedefencenews.com\/index.php?rest_route=\/wp\/v2\/posts\/2696\/revisions\/2938"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/thedefencenews.com\/index.php?rest_route=\/wp\/v2\/media\/2937"}],"wp:attachment":[{"href":"https:\/\/thedefencenews.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2696"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/thedefencenews.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=2696"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/thedefencenews.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=2696"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}