New Atomizer Developments in the Hungarian Aviation Service1

In the practice of aerial application of chemicals in Hungary, the need arose in the mid-70's to solve the spray atomization problem for the ULV range. First experiments were carried out with imported equipment, in view of the lack of Hungarian-manufactured equipment. Unfavourable practical experiences impelled the Air Service in Hungary to develop and manufacture new spraying equipment, specially adapted to local requirements. The Unirot-4 electrically driven rotary drum became the first successful atomizer, which was put into large-scale operation in recent years. This multi-purpose spraying equipment is now essential on helicopters used for ULV and LV applications. The X-2 fan-driven rotary drum is being developed for fixed-wing aircraft.