Drone Tendering – Considerations before Buying or Building

Acknowledgments Much of this article is based on a session and tradeshow I attended at the 2026 Drone End-User Conference in Kansas City. I want to acknowledge the insightful information provided by the three session speakers, as well as the ~200 audience members that asked honest questions and shared their experiences. The speakers were Mr. […]

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The Carvalho Boom and the Stages of Quadcopter Flight

The Hypothesis The results of a recent herbicide deposition study performed with the DJI T100 led us to observe that after ~13 m/s, swath width and drift were no longer directly related to travel speed; They appeared unaffected. The result was completely unexpected as it was counter to several years of prior study with smaller […]

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Canada Gazette Part II – Recent and upcoming changes to Canadian rules for operating Remote Piloted Aerial Systems

Editor’s Note: This article was posted in June 2025, and as of November 4th all rules have now come into effect. Summary The Government of Canada introduced the first set of Remote Piloted Aerial Systems (RPAS) rules in 2019, which addressed safety concerns and created a flexible and predictable environment for small RPAS flown within […]

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Exploring the accuracy of drone-applied herbicide treatments

Author’s note: Minor edits were made to this article on December 12, 2025. While the results remain unchanged, aspects of the interpretation have been adjusted upon reflection. In 2024, Corteva conducted a study entitled “Drone-Delivered Herbicides: Comparing Lontrel XC (Clopyralid) Efficacy Across Application Techniques and Water Volumes”. Their objective was to compare the relative efficacy […]

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DJI Agras T100 – First Impressions

On July 15, 2025, DJI Agriculture announced the global launch of the DJI Agras T100. Compared to its predecessor, the T50, it features a larger payload for spraying and spreading and can fly at approximately twice the speed. The rotary atomizer-style nozzles (which DJI refers to as sprinklers) produce comparatively increased flow with an option […]

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