Aerial Applications Sprayer Nozzle Models (Web)

Research Basis

These models are based on results from independent research conducted by the USDA ARS Aerial Application Technology Research Unit, and are not manufacturer-based data.

Citations

Fritz, B. K. and Hoffmann, W. C. Update to the USDA ARS fixed wing spray nozzle models. Trans. ASABE 58(2):281–295. 2015.

Fritz, B. K. and Hoffmann, W. C. Developing the USDA ARS spray nozzle models for rotary wing applications. Appl. Engr. Agric. 33(5):631-640. 2017.

Fritz, B. K. Straight-stream nozzle models to support aerial applications. Pesticide Formulation and Delivery Systems: 42nd Volume, Building the Future of Agrochemicals for 2030 and Beyond. Krista Turpin, ed. J. ASTM Int. 24–35. doi.org/10.1520/STP165120230004. 2024.

Nozzle Operating Parameters

Airspeed Range

Nozzle Model

Orifice Size

Angle/Restrictor

Pressure (psi)

Airspeed (mph)

Application Targets

Spray Rate (GPA)

Swath Width (ft)

Droplet Spectra Results

DV_0.1 (µm)

– –

DV_0.5 (µm)

– –

DV_0.9 (µm)

– –

%V < 100 µm

–%

%V < 200 µm

–%

Relative Span

–

Final DSC

–

Application Flow

Boom Flow (GPM)

–

Nozzle Flow (GPM)

–

Nozzles Needed

–

DISCLAIMER: Nozzle flow rates and nozzle counts are provided for informational purposes only, are not guaranteed accurate, and do not imply swath uniformity or coverage. Applicators are encouraged to attend an Operation S.A.F.E. Clinic.