Looking at upgrading from a DJI Agras T40 (40L tank) to something with higher payload capacity for our 800-acre corn/soybean operation. Current setup covers about 12-15 acres per battery cycle at 2 GPA application rate, but the constant refilling is killing our efficiency during critical spray windows.

Considering the XAG P100 Pro (50L) or going full commercial with something like the Eavision EA-30X (30L but more robust). Has anyone run comparative analyses on $/acre operational costs factoring in battery life, refill time, and coverage rates?

Most concerned about drift control with higher payloads - seems like the heavier platforms might struggle more with precision application, especially in variable wind conditions. Current T40 handles 7-10mph winds pretty well with PWM control.

Switched from T40 to the P100 Pro last year. Coverage went from 12 to about 18 acres per cycle, but you're right about drift - definitely need to be more conservative with wind speeds. The extra weight affects responsiveness significantly.

Before upgrading payload, consider adding a mobile mixing/refill station. We tripled our daily coverage with the same T40 by eliminating trips back to the shop. Sometimes logistics matter more than tank size.

The Eavision platforms have better wind resistance due to their propeller design, but parts availability is terrible in the US. Stick with DJI or XAG unless you have local service support.

Also, factor in that higher payload = shorter flight times due to power draw. The sweet spot seems to be around 30-35L for most operations.