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A hovercraft (pl.: hovercraft [1]), also known as an air-cushion vehicle or ACV, [2] is an amphibious craft capable of travelling over land, water, mud, ice, and various other surfaces. Hovercraft use blowers to produce a large volume of air below the hull, or air cushion, that is slightly above atmospheric pressure. The pressure difference ...
Ekranoplan A-90 Orlyonok. A ground-effect vehicle (GEV), also called a wing-in-ground-effect (WIGE or WIG), ground-effect craft/machine (GEM), wingship, flarecraft, surface effect vehicle or ekranoplan (Russian: экранопла́н – "screenglider"), is a vehicle that is able to move over the surface by gaining support from the reactions of the air against the surface of the earth or water.
It is this principle of levitation upon which a hovercraft is based, and Christopher Cockerell set about applying his momentum curtain theory to hovercraft to increase their abilities in overcoming friction in travel. [1] [2] Levitating a vehicle above the ground/water to reduce its drag was not a new concept.
SR.N1. The Saunders-Roe SR.N1 (Saunders-Roe Nautical 1) was the first practical hovercraft.The concept has its origins in the work of British engineer and inventor Christopher Cockerell, who succeeded in convincing figures within the services and industry, including those within British manufacturer Saunders-Roe. [1]
Hovercraft landing in Calais Boarding a Hovercraft with a vehicle. The SR.N4 (Saunders-Roe Nautical 4) [1] hovercraft (also known as the Mountbatten class hovercraft) was a combined passenger and vehicle-carrying class of hovercraft. [2] The type has the distinction of being the largest civil hovercraft to have ever been put into service.
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A USN LCAC at Camp Pendleton. An air-cushioned landing craft, also called an LCAC (landing craft, air cushioned), is a modern variation on the amphibious landing boat.The majority of these craft are small- to mid-sized multi-purpose hovercraft, also known as "over the beach" ("OTB") craft.
Leisure hovercraft designs offer better on-water handling capabilities - some hovercraft struggle to get onto the air cushion when starting on water, because hovercraft create a bow wave referred to as The Hump - so different models will have quoted on-water payloads to denote what weight can be lifted when starting from on-water.