Author
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Kirk, Ivan |
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Submitted to: North Carolina Agricultural Aviation Association Meeting
Publication Type: Abstract Only Publication Acceptance Date: 2/11/2003 Publication Date: 2/11/2003 Citation: Kirk, I.W. 2003. Advances in aerial application - recent research [abstract]. North Carolina Agricultural Aviation Association Meeting. Interpretive Summary: Technical Abstract: Highlights of two major studies conducted in 2002 will be presented: 1) Spray deposition and drift from two sprays classified as medium under the ASAE S572 standard were shown to have significantly different downwind drift profiles. The results of this study emphasize the importance of considering volume median diameter and percentage of fine droplets in the spray spectrum in addition to the ASAE classification in order to reduce spray drift to minimum levels. 2) Operational factors such as droplet size and boom length influence spray drift from helicopters. This study demonstrated that helicopter operators that use 1000µm diameter sprays can use 100 percent boom lengths without increasing downwind spray drift. Helicopter operators using sprays of 400µm diameter should use 75 percent boom length to control spray drift. In addition the longer term studies with the aerial electrostatic spray system and the spray nozzle atomization studies will be summarized. |
