The ASC (Advanced Spectrum Controller) was developed to address areas not adequately addressed by other types of atomizers. The ASC was designed with several things in mind, simplicity, fewer replacement parts, long life, and reliability in the field. A high degree of aerospace engineering has been used in the development of the units. A shape that lends itself to the least amount of drag is obvious. The ASC units are lightweight, yet structural integrity has not been compromised. The ASC Rotary Atomizer has been designed to operate at airspeeds in excess of 200 miles per hour while continuing to excel in the low speed areas, as low as 30 miles per hour. In addition the ASC has a higher potential gallonage available for uses in areas such as fruit trees. The present range of the Model ASC-A10 is .13 GPM, through a range of 12 GPM per nozzle depending on the aircraft pumping system. For the Model ASC-A10 fitted with High Volume shutoff kit (ASC-50H), the low range remains the same but the hi-volume increases to 14 to 18 GPM per nozzle depending on the aircraft system and pump being employed. The ASC design is compatible with existing aircraft pumping systems and flow monitors making them an ideal replacements for other nozzle types. Operating pressures are extremely low greatly reducing chances of leakage or premature pump failure.