- Also called:
- assault amphibian vehicle
- Related Topics:
- armoured vehicle
- amphibious vehicle
amphibious assault vehicle
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What is an amphibious assault vehicle?
An amphibious assault vehicle (AAV) is an armed and armored military vehicle that carries assault troops and their equipment from ship to shore during combat. Developed by the U.S. Marine Corps, AAVs are tracked vehicles that transport troops over water and function as logistical or fighting vehicles on land.
The Marine Corps developed a steel-plated military version called the Landing Vehicle Tracked (LVT) from a civilian prototype in 1941. The LVT quickly acquired armor, and two types evolved: an armored amphibious personnel and cargo carrier and a turreted amphibious gun-vehicle for fire support. In 1985, the LVTP-7 was redesignated the AAVP7A1 as it evolved from a landing vehicle into an assault vehicle.
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What makes an amphibious assault vehicle different from other military vehicles?
An amphibious assault vehicle (AAV) is an armed and armored military vehicle that brings assault troops from ship to shore during combat. AAVs transport troops and equipment over water and continue operations on land as logistical or fighting vehicles.
Developed by the U.S. Marine Corps, AAVs are tracked vehicles that can transport 25 combat-ready marines over water at 8 miles per hour. On land, they can travel over roads at 45 miles per hour. AAVs possess boat-like hulls and stern loading ramps, along with water-jet propulsion that enhances performance compared to earlier amphibious vehicles. They are armed with a 12.7-mm machine gun and a 40-mm grenade launcher.
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How do amphibious assault vehicles move on both land and water?
Amphibious assault vehicles (AAVs) are armed, armored military vehicles that transport troops from ship to shore in combat. Developed by the U.S. Marine Corps, AAVs are tracked vehicles that function on land as logistical or fighting vehicles.
On land, AAVs travel using tracks, similar to a tank, and can reach speeds of 45 miles (70 km) per hour. In the water, AAVs are propelled by water-jet propulsion units, reaching speeds of 8 miles (13 km) per hour. These vehicles can navigate rough seas, unlike other amphibious vehicles designed only for inland waters.
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What roles do amphibious assault vehicles play during military operations?
Amphibious assault vehicles (AAVs) are armed and armored military vehicles that transport assault troops and their equipment from ship to shore during combat. AAVs deliver troops to a defended shore rapidly, providing sufficient force to establish a secure beachhead and continue fighting inland. They can function as logistical or fighting vehicles under hostile fire, and can negotiate rough seas, unlike other amphibious vehicles intended for inland water obstacles. The U.S. Marine Corps employs AAVs in their traditional role as an amphibious force, but they have also been used in conflicts far from the sea.
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What features help protect the soldiers inside an amphibious assault vehicle?
Amphibious Assault Vehicles (AAVs) are armed and armored military vehicles that transport troops from ship to shore during combat. The need for protection became clear during combat, which led to the addition of armor plating. The U.S. Marine Corps developed steel-plated military versions called Landing Vehicle Tracked (LVT). There were two types: an armored amphibious personnel and cargo carrier and an amphibious gun-vehicle with a turret for fire support during landings. The Amphibious Assault Vehicle can transport 25 combat-ready marines and is armed with a 12.7-mm machine gun and a 40-mm grenade launcher.
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How have amphibious assault vehicles changed the way armies conduct beach landings and coastal attacks?
Amphibious assault vehicles (AAVs) have revolutionized military beach landings and coastal attacks by enabling the swift delivery of troops and equipment from ship to shore under combat conditions, ensuring a secure beachhead. The U.S. Marine Corps refined AAVs, developing tracked vehicles capable of transporting personnel over water and functioning as logistical or fighting vehicles on land.
The development of AAVs can be traced to the 1920s and 1930s with the creation of the Landing Vehicle Tracked (LVT). These vehicles played a crucial role in the Pacific campaigns of World War II and were later used in Korea, enhancing the mobility and flexibility of amphibious operations. Modern AAVs, like the AAVP7A1, can transport up to 25 combat-ready marines and are equipped with machine guns and grenade launchers, improving tactical air support and adding a new dimension to amphibious operations.
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amphibious assault vehicle (AAV), an armed and armoured military vehicle designed to deliver assault troops and their equipment from ship to shore under combat conditions. As developed most fully by the United States Marine Corps, AAVs are tracked vehicles that transport troops and materiel over water and continue to function ashore under hostile fire as logistical vehicles or as fighting vehicles.
The origin of modern AAVs can be traced to the 1920s and ’30s, when Marine Corps planners, preparing for eventual war in the Pacific against the Japanese empire, considered the central problem posed by amphibious landings from the open seas—specifically, how to deliver assault troops to a defended shore quickly and with sufficient force to establish a secure beachhead and continue fighting inland. To help solve the problem the Marine Corps turned to the Alligator, an amphibious rescue vehicle first built in 1935 by Donald Roebling, a scion of the engineering family founded by John Augustus Roebling. Roebling’s lightweight aluminum vehicle was propelled in water and driven on land by a set of tracks equipped with paddlelike cleats. From this civilian prototype the Marine Corps developed a more powerful steel-plated military version called the Landing Vehicle Tracked, or LVT. Originally built in 1941 as an unarmoured cargo carrier called the amphibian tractor, or amtrac, the LVT quickly acquired armour. Two types evolved: an armoured amphibious personnel and cargo carrier and a turreted amphibious gun-vehicle for close fire support during landing operations. Altogether 18,620 LVTs were built during World War II; these played a prominent role in the Pacific campaigns from Guadalcanal onward.
After World War II, LVTs were successfully used in Korea, notably for the 1950 Inch’ŏn landing. Two new models were built between 1951 and 1957: an LVTP-5 amphibious carrier, capable of carrying as many as 37 men, and an LVTH-6 armed with a turret-mounted 105-mm howitzer. They were followed in 1972 by the 22.8-ton LVTP-7, which incorporated several improvements, the most important being a boatlike hull with a stern loading ramp instead of a bow ramp and two water-jet propulsion units that greatly improved its performance in comparison with that of the earlier LVTs. At the same time, the LVTP-7 retained the seagoing qualities of the earlier LVTs, which could negotiate rough seas and Pacific surf—in contrast to other amphibious vehicles, which were intended primarily for crossing inland water obstacles.
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In 1985 the LVTP-7 was redesignated the AAVP7A1, as part of its continued evolution from a landing vehicle into an assault vehicle. The AAVP7A1 is still an important platform in the U.S. Marine Corps’ traditional role as an amphibious force, though it also has been used in conflicts far from the sea, notably in the Iraq War. The vehicle, weighing more than 25 tons fully loaded, can transport 25 combat-ready marines over water at 8 miles (13 km) per hour. On land it can travel over roads at 45 miles (70 km) per hour. Its standard armament consists of a 12.7-mm machine gun and a 40-mm grenade launcher. The AAVP7A1 and its LVTP-7 predecessor have been exported for service in marine forces of other countries—for example, South Korea and Taiwan.
After 2003 Britain’s Royal Marines employed the Viking, an amphibious armoured all-terrain vehicle based on a Swedish design. The Viking consists of two tracked units, or cabins, linked by a steering mechanism. The forward cabin, carrying the engine and driver, can transport three fully equipped marines, and the rear cabin has room for eight marines. The sole weapon is a 12.7- or 7.62-mm machine gun mounted on the forward cabin. With such a configuration and armament, the Viking is intended to serve primarily as a transport or patrol vehicle and not as an assault platform. It has seen service in Afghanistan.