Development of the Air Supported Lawnmower 650712

The principles employed in ground effect machines have been successfully applied to a rotary lawn mower. The development included that of a suitable fan and housing relationship to give a sufficient air pressure differential to support the weight of the unit. Efficiency of the fan, power available in the engine, air velocity at discharge from the housing, and flotation height above the ground were all considered to insure that the function of cutting grass was not lost.


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