Having A Ball With A Personal Hovercraft

Back in the early 1950s specialists in the United Kingdom, the United States, and Europe were looking for solutions to Thornycrofts old dilemma. Cockerell of the UK is now identified as the daddy of the Hovercraft, as the Air cushioned vehicle is commonly well known. Throughout Ww2 he was closely linked with the design of radar and various other radio broadcast aids and had settled into peacetime life as a boatbuilder. Ironic that these first prototype eventually gave rise to small persoanl hovercraft for leisure and even rescue use - details leisure hovercraft. Soon he started to interest him self with Thornycrofts problem of decreasing the hydrodynamic draw on the hull of a boat with some kind of air lubrication. Cockerell bypassed Thornycrofts cavity chamber (in essence, an empty box with an open underside) principle, wherein air is moved directly into a cavity beneath the craft, due to the difficulty in controlling the air cushion.

p>During the nineteen sixties American aero engineers produced a prototype vehicle making use of a wing in connection with ground effect. Several other propositions along these lines were postulated, and one other variant integrated the airfoil properties of a ground effect machine with an air-cushion boost system that permitted the vehicle to fabricate its own hovering power while not moving forward and then develop forward velocity, steadily shifting the lift property to its wing. While none of these vehicles got past the experimental stage, they were significant portents of the future due to the fact that they indicated a way of making use of the hovering advantage of hovercraft and effectiively getting past its presupposed speed restriction of about 200 mph, above which it was difficult to hold the air cushion in position. These kinds of craft are known as ram-wing form.

The UK Channel Hovercraft were completely developed by Saunders-Roe company. The principal model in the group, known as SR.N1 a four-ton craft that had the ability to transport just its team of 3, was invented by British engineer Christopher Cockerell - it traversed the Channel for the very first time on July 25, nineteen fifty nine. 10 years in the future Cockerell was reconized by the Queen for his particular achievement. By that time the last and largest of the series, the SR.N4, had commenced to ply the ferryboat routes in between Dover and Ramsgate on the English part and Boulogne and Calais on the French side.

With regard to their largest versions, these huge vehicles, weighing 265 tons and powered by four Rolls-Royce state of the art engines, could in reality carry more than 50 cars and in excess of four hundred passengers at sixty five nautical miles ph. At this rate of speed the uk channel trip was reduced to a mere thirty minutes.

In the heyday of the late nineteen sixties and early seventies, the assorted Hovercraft ferry service providers (with names such as Hoverspeed and Hoverlloyd), were carrying as much as thirty per cent of all of Channel travellers. This was the charisma of this especially English technological marvel that one of the hovercraft appeared in films.

The military didn't really want the hovercraft because it wasn't a motor vehicle. The Navy claimed it was not a vessel and therefore worthless. The Air Force reported that it could not truly fly, so it was no benefit to them. For that reason the plans languished for twenty years or so before it was viewed as as a large passenger vessel to convey travellers across the British Channel. The RN101 making use of the Landing Craft Air Cushion effect took service in the late 60s and ran for 4 years. It was actually pretty large and rode some five feet off the surface of the beach or sea. Story has it that it wasn't overly stable and remarkably noisy - moreover, people required to wear seat belts - no going off to have a beer at the bar!


There are no comments on this page.
Valid XHTML :: Valid CSS: :: Powered by WikkaWiki