Drones are becoming more widely used in agriculture.  Recent advances have made it feasible to use drones to apply liquid or granular materials onto farm fields.  Because the technology is relatively new, there are still many things that users need to learn and understand to use it properly.  One particular question that has become apparent is the accuracy and uniformity with which materials are applied using drones.  Specialized test fixtures and equipment have been developed to support current field evaluation of application patterns and accuracy.  The results will help drone manufacturers adjust equipment designs to improve application performance.  The results will also help producers do a better job applying materials with drones.