Design And Construction Of A Passenger Hovercraft.pdf > bit.ly/1TI54Ev
Design And Construction Of A Passenger Hovercraft.pdf
Hence the use of a flexible skirt and the need for sufficient lift. Many modern air cushion vehicles use separate systems for air and propulsion. Although wood and plywood are often used, many hovercraft hull structures are made of aluminum (aluminium) skin, welded or riveted onto an aluminum web or frame. That said with a hovercraft we can identify four basic construction necessities - 1) the hull, below which is attached the skirt system, 2) the carriage or cabin part which needs to hold the passenger(s), crew or freight, 3) a propulsion system to move the craft, and 4) the lift system to feed air into the plenum chamber below the craft in order to create the air cushion. A hole in the center of the raft can be made to feed air to the plenum chamber beneath the craft. Free information onhow to construct a hovercraft Hovercraft FAQ by Alex Olshove RLH Enterprises - Sevtec Sev Prospector by Bob Hodges Columbia University (USA) - follow the progress of their second generation hovercraft construction project with many detailed photos of each step. Workshops . exhibitions .
. add . This deals with the structural strength of the raft to be light enough to be lifted by the air cushion created underneath, yet strong enough to carry the weight of the engine, its passengers or payload. The difficulty in using one engine is to provide optimal efficiency for both systems, dividing the power for propulsion as well as for the fan to produce enough air for the lift. Air cushion vehicle hull construction is more closely based on aviation rather than marine constructions for the simple reason that aviation hulls are a combination of strength and lightness as opposed to strength as a priority. The basic principle of an air cushion is that if you lift an object off the ground using air you reduce the force needed to move the object. This also implies that the smoother the surface the less the friction. Of course you can always buy one instead. Such is the power of the lift that even a severely overloaded and miscalculated power-to-weight ratio hovercraft construction will still work, but it is far from ideal. However, the use of new skirt techniques makes peripheral jets, led in from the edge of the raft through ducts, more sensible and more common.
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