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Spray drone questions
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Posted 7/3/2024 17:03 (#10797257 - in reply to #10793241)
Subject: RE: Spray drone questions

Just make sure you keep an eye on studies on setting spray height & speed and spray swath that results in it. Makes a huge difference if you are spraying at like 15' high to get a 15' swath, or 10' to get a 8' swath.

Lots of inconsistency can play into the swath and realistic coverage as well. Rotor wash isn't the same dynamic as a airplane spray. Actually a study just got released doing a bit of a study with consistency of swath and coverage.
This was just the link from Twitter/X, but the paper is free to download as well.
I just printed a copy of it off this morning and haven't had a chance to read it yet, but it'll probably mirror a bunch of the challenges, and moreso what to expect in an application. I've seen a few studies that are similar, using either rotary CDA spray outlets or nozzles on a variety of drones/makes.

Just be aware some drone folks are 'drone folks first' and 'sprayer folks second'. So, they might know drones really really well, but the spraying is just an 'addon' feature to them. When the SPRAYING is the reason you bought the drone, and it better well be able to produce results that are worthwhile (and not going to cause damage - less of a concern in fungicide time mind you, but more relevant if you end up using it for any herbicide applications).

Anyways, just read around and try to read what you can so you can actually get the jist of what your efficiency would be (e.g. lots tote around the 2-3 GPA applications, BUT it seems like a lot of the good applicators that apply for folks commercially insist more of the higher 3-5 GPA rates, and strictly depend on what they are spraying and where (e.g. into deep canopy, bare ground, etc.). Even for those guys, still a lot of learning curve.
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