In their largest variants, these immense hovercraft, weighing two hundred sixty five tons and powered by four Rolls-Royce state of the art engines, could actually carry more than 50 cars and over 400 passengers at 65 knots. At these kinds of velocities the whole voyage was decreased to a mere thirty minutes. In their peak of the late sixties and early seventies, the different Hovercraft ferry service providers (with names that include Hoverspeed and Hoverlloyd), were carrying as much as thirty per cent of all cross-Channel passengers. This was the charisma of this particularly British technical miracle that one of the many Mountbatten hovercraft made an appearance in films.
To assess his theory about hovercraft construction materials Cockerell created a piece of equipment consisting of a motorized inflator that supplied air inside an inverted coffee tin through an opening in the base. The tin was hanging over the weighing container of kitchen scales, and air pushed into the can pushed the pan down in opposition to the mass of a number of weights. In this way the forces involved were roughly measured. By fixing a second tin within the first and pushinh air down through the area in between the two, he was ready to demonstrate that in excess of thrice the number of weights could be lifted by this means, compared with the plenum chamber result of an individual tin.
To test his theory,
Christopher Cockerell set up a system consisting of a motorized inflator that supplied air into an upside down coffee can by means of a hole in the underside. The tin was hanging over the weighing pan of kitchen scales, and air pushed into the can pushed the pan downwards against the resistance of a number of weights. By this means the forces involved were aproximately gauged. By securing an extra tin within the first and pumping air down through the area in between them, he was ready to illustrate that in excess of thrice the quantity of weights could possibly be elevated with this arrangement, as compared with the plenum chamber effect of an individual tin.
The cross-Channel Hovercraft were actually entirely produced by the Saunders-Roe organization. The 1st in the series, generally known as SR.N1, a four ton vessel, that had the ability to transport only its crew of 3 and was as a matter of fact created by English engineer Christopher Cockerell - it crossed the Channel for the maiden voyage on July 25, 1959. Ten years later on Cockerell was knighted for his personal achievement. During this period the final and largest of the group, the SR.N4, had begun to execute the ferry lanes in between Dover and ramsgate on the British side and Calais and Boulogne on the French.
Looking at their largest versions, these huge vehicles, weighing 265 tons and powered by 4 Rolls-Royce modern engines, could in reality transport over fifty motor vehicles and in excess of four hundred passengers at 65 nautical miles ph. At this rate of speed the cross-Channel voyage was reduced to a mere thirty minutes. In the heyday of the late nineteen sixties and early seventies, the assorted Hovercraft ferry services (with names such as Hoverspeed and Hoverlloyd), were carrying as high as thirty per cent of all of the uk channel travellers. Such was the charisma of this particularly British technical marvel that one of the Mountbatten vehicles was featured in films.