. viable on land as well as on water just like an amphibian.An amphibious vehicle (or simply amphibian). is a vehicle or craft. that is a means of transport. 1750) or Sir Samuel Bentham (1781). although it is disputed to have successfully travelled over land or water under its own steam. named the Orukter Amphibolos. the invention of which is credited to the notorious Neapolitan Prince Raimondo di Sangro of Sansevero (ca. was conceived and built by United States inventor Oliver Evans in 1805. The first known self-propelled amphibious vehicle. a steam-powered wheeled dredging barge.h Some of the earliest known amphibious vehicles were amphibious carriages. h . constructed from an integral hard plastic or fibreglass body tub. fitted with six (sometimes eight) driven wheels.ATV s-All Terrain Vehicle s Typically an Amphibious ATV or AATV is a small. lightweight. CAR S It is Water resistant & chassis is made of light weight alloy( aluminum) Water drive is by a propeller which is retracted by an electric motor. . balloon tires. off-highway vehicle. with low pressure. The front wheels do the steering in water. Buses -Amphibious buses are employed in some locations as a tourist attraction. . typically being propelled in the water by hydrojets Or by their tracks. Tanks Deep fording Some military vehicles are not truly amphibious but are capable of "wading" using waterproof screens to keep the upper hull dry. are manufactured with amphibious capabilities. ranging from light wheeled command and reconnaissance. through armoured personnel carriers and tanks. Some light tanks such as the PT-76 are amphibious. given waterproofed hulls and trunking was fixed to the engine intakes and exhausts to allow them to come ashore from landing craft in shallow water. and could swim across bodies of water .Armored Many modern military vehicles. mixed.Hovercraft An air-cushion vehicle (ACV) or hovercraft is designed for travelling over land or water supported by a cushion of slow moving. . low-pressure air ejected downwards against the surface below it. In principle a hovercraft can travel over any sufficiently smooth surface. solid. liquid. or anything in between. extra hull surface clearance is obtained. it lifts the hovercraft. Because the hovercraft has practically no friction. which is contained by a skirt. The skirt is a long strip of material that is mounted onto the underside of the craft. The skirt that is around the perimeter of the hovercraft performs an extremely important function in containing the air cushion. it takes little force to move the craft. The escaping air coming from where the skirt touches the ground is what creates a friction-less cushion of air.A hovercraft has one or more blowers that blow air underneath the craft. . the amount of engine power required to lift the craft is considerably reduced and as an added benefit. When the skirt is inflated. By using a skirt.