The “SKYTECH” Mechanical Runway Sweeper is functionally a large self-propelled vacuum cleaner, fitted with all the necessary controls, instruction, accessories and adjustment for enabling it to function efficiently. It works on the “Suction Principle” i.e. the objects to be picked up are placed in a stream of high velocity air, enabling them to develop an ‘aerodynamic drag force’ in the direction of the air flow. The velocity of air has been so arranged that the drag force overcome the weight of the objects and consequently propels them through the ducts into the large dirt-container in which the desired level of low pressure is maintained with the aid of a large capacity exhauster fan driven by an auxiliary engine. The pressure side of the exhauster provides the “agitational air” required for blowing on the loose objects lying on the ground. A hydraulically driven roller brush takes care of adherent at objects, which are not dislodged by the blowing air. ‘Heavy Objects’ are gathered together by canted diverter ledges which direct them to the heavy object pick-up nozzles. Since blowing and suction acts over the entire sweeping width, the objects are given a double treatment, resulting in even crevices being cleaned effectively.

The “SKYTECH” Mechanical Runway Sweeper is functionally a large self-propelled vacuum cleaner, fitted with all the necessary controls, instruction, accessories and adjustment for enabling it to function efficiently. It works on the “Suction Principle” i.e. the objects to be picked up are placed in a stream of high velocity air, enabling them to develop an ‘aerodynamic drag force’ in the direction of the air flow. The velocity of air has been so arranged that the drag force overcome the weight of the objects and consequently propels them through the ducts into the large dirt-container in which the desired level of low pressure is maintained with the aid of a large capacity exhauster fan driven by an auxiliary engine. The pressure side of the exhauster provides the “agitational air” required for blowing on the loose objects lying on the ground. A hydraulically driven roller brush takes care of adherent at objects, which are not dislodged by the blowing air. ‘Heavy Objects’ are gathered together by canted diverter ledges which direct them to the heavy object pick-up nozzles. Since blowing and suction acts over the entire sweeping width, the objects are given a double treatment, resulting in even crevices being cleaned effectively.