The bizarre amphibious four-wheeled vehicle called Rhino was designed by the Greek-American inventor Elie Aghnides. In the 1940s, Aghnides was watching a tractor laboring through New York City’s Central Park and figured he could combine the stability of a bulldozer with the speed of a car, and create an efficient, all-terrain vehicle.
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A few years later, he came up with the concept of an enormous vehicle nicknamed “The Rhino”. Defining features were its massive slanted front wheels, which had six-foot diameters and weighed 1,500 pounds each. The wheels were also hollow, which allowed the Rhino to float, meanwhile, a hydrojet propelled it forward along the water body.
The odd-looking vehicle weighed five tons and could travel with ease through deep sand, mud, and water. On the highway, it reached up to 45 miles per hour, but in water, it couldn’t surpass speeds of 5 miles per hour.
The prototype was built by Marmon-Harrington in Indianapolis in 1954. It was designed with a low center of gravity which meant it could tip 75 degrees to either side without toppling over.
Aghnides demonstrated the invention for the military, but they decided not to purchase the invention because they feared the inflatable wheels could be pierced by gunfire. Several photos and videos exist of the testing of the vehicle.
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