USDA-ARS Aerial Spray Nozzle Models

NAAA is pleased to recommend the USDA-ARS Aerial Spray Nozzle Models developed by the USDA-ARS Aerial Application Technology Research Unit.

The current USDA-ARS Aerial Spray Nozzle Models are divided into two distinct types: those for higher speed fixed-wing aircraft and those for lower speed fixed wing and rotary wing aircraft. The higher speed models are applicable for airspeed ranging from 120 to 180 mph, while the lower speed models are applicable for airspeeds ranging from 30 to 100 mph.

The higher speed models were recently developed to incorporate an extended range of nozzles, spray pressures and orientation angles. These models are updates to the ones you may have used in the past and reflect the current state of the art in spray droplet sizing and classification.

The lower speed models are those you are familiar with. These lower speed models are being updated this year and will bridge the gap from 100 to 120 mph seen in the current sets of models.

With both sets of models, simply select your nozzle from the pull-down menu, then select your desired orifice size, spray pressure, orientation angle and operational airspeed. The droplet size data and classification will be displayed and allow you to decide if this is the correct setup for the application.

Aerial Spray Nozzle Models

High Speed Spray Nozzle Models
Low Speed Spray Nozzle Models

For More Information...

Please contact the Aerial Application Technology Research Unit with any questions or concerns about the Aerial Spray Nozzle Models.

AAT Contact Information

Group Email:
W. Clint Hoffmann, Research Leader:
Dan Martin:
Chenghai Yang:
Brad Fritz: