The initial prototype was made of simple fiberglass laminate and rigid foam construction and featured a flat deck and a flat bottom with dual concave hydrosteps beneath the rails. The original MonoJet measured nine feet long, 26 inches wide and 6 1/2 inches in the midsection, weighed a total of 93 pounds and was powered by a small, high rpm, two-stroke engine that moved the board at speeds approaching 35 mph.
Although the test results were impressive, the excessive rpm resulted in reduced engine life and performance and an increase in fuel consumption. Thus the high rpm engine concept was permanently dropped.
The rigid foam hull was also abandoned when the foam substrate became pulverized and spongy due to high impact loads from the rider's feet at high speeds and choppy seas interacting with the bottom of the hull.
As a result a light weight, yet virtually indestructible, double hull structure was developed and later patented in 1984. The hull thickness was increased by 15 per cent for added buoyancy, but the sleek and distinctive overall flat deck, streamline air intake and the low friction hydrodynamic bottom design remain unchanged.
Prototypes have been equipped with factory-stock power plants, retrofitted to meet strict MonoJet design specifications. Over the next few years the MonoJet was further refined, simplified and thoroughly time-tested in the Pacific Ocean, just when Jet skis were becoming extremely popular.
Today, more than two decades after its creation, the MonoJet remains the only true motorized surfboard that has been thoroughly time-tested and proven effective. In fact the inventor, Egon Monostory has an 18 year old board which he rides, testing its ultimate limits every time he and his MonoJet team go out in the water.
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