Thanks for reply.

So, the drone always has the same g.s. while spraying via varying the airspeed, therefore the same application rate? So, if you choose an application rate speed, is it just like the old spray application method of time & nozzle flow rate? We'd put the 4020 in 6th gear, 7 mph, 30 psi, xx05 nozzles, give us 10 gpa (not factual, just anecdotal).

Just asking, how does it work if you decide to fly @ 15, 20, or 25 mph (g.s. I presume) ? What maintained the gpa rate at your chosen speed? I'm familiar with conventional pressure (the early DJ controller), or flow meter controllers but not familiar with drone flow control.

Also asking, why would the spray pattern be wider in x-wind vs direct head/tail wind? It seems once the product free-falls in the air, it's being dispersed at the same width? Or, do I not visualize correctly?

Do you make a total boundary pass around the field first so you don't have to spray while turning for pass alignment?

Thanks for explanations!!