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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 ...
So, with the same input power, a greater amount of lift could be developed, and the hull could be lifted higher above the surface, reducing friction and increasing clearance. This theory was tried, tested and developed throughout the 1950s and 1960s until it was finally realised in full-scale in the SR-N1 hovercraft.
Traction can also refer to the maximum tractive force between a body and a surface, as limited by available friction; when this is the case, traction is often expressed as the ratio of the maximum tractive force to the normal force and is termed the coefficient of traction (similar to coefficient of friction).
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.
The closest devices are the hovercraft, which elevates itself above a water or level hard surface using a cushion of air retained by a flexible skirt, and the hovertrain, which is a type of high-speed train that replaces conventional steel wheels with hovercraft lift pads, and the conventional railway bed with a paved road-like surface, known ...
The Landing Craft Air Cushion (LCAC) is a class of air-cushioned landing craft used by the United States Navy and the Japan Maritime Self-Defense Force (JMSDF). They transport weapons systems, equipment, cargo and personnel from ship to shore and across the beach.
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]
When a hovering rotor is near the ground the downward flow of air through the rotor is reduced to zero at the ground. This condition is transferred up to the disc through pressure changes in the wake which decreases the inflow to the rotor for a given disc loading, which is rotor thrust for each square foot of its area.