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| On the nice side of things, as you are on 15" spacing, not going crazy fast, with ~7GPA, the nozzles wont be too oversized that you'd be getting too coarse to get a good systemic application.
While you notice for some drift reduction tips post an operating pressure of 15PSI+, especially if they are air induction nozzles, you'd typically want to be at the very least above 25PSI. (Some coarser series of drift reduction tips should be probably closer to 35-45PSI as a minimum-typical operating pressure though).
That being said, with the drift reduction technology built into the nozzles nowadays, you can sometimes get less drift spraying with nozzle 'B' at 60PSI than you would with the old XR nozzle at 30PSI. So, try plan that into your nozzle size, as you are probably taking corners at around 8-9MPH, so you'd want to try stay above a good minimum pressure into those slow spots.
As far as your conditions, you'd be looking at either an 110-02 or 110-025 nozzle size. Definitely not too coarse for what you are spraying, especially if you are getting into the Dicamba/2,4d/paraquat.
The nice thing for a 110-02 size is that you'd be spraying at roughly 50-55PSI for your 12-13MPH speeds, which lets you slow down to ~9MPH at around 25PSI.
As far as AMS, it is a nice means to address water and add some spunk.
Given your booms are upwards of the ~30" for your burn-down, technically you'd be a candidate for 80° spray nozzles, but given the nozzles available to you for drift reduction nozzles would be limited, you might stick with 110°s and put up with a smidge more drift.
What are you using for your contact herbicides? With that volume, you can start getting into the 'too coarse to be effective' size. We make an MR110-04 that is pretty versatile, as it can manage to get where you need for most contact herbicides at the 50-60PSI, and when you slow down, it really cuts your drift down when you need it. All in all, as long as you don't go too 'guns blazing coarse' for your contact in-crop applications that need finer coverage, you should be able to find a happy medium.
As far as a size goes, you'd probably be good with a 110-04 size in either case. Same kind of reasoning as the 110-02 (better flexibility in being able to slow down/etc when you need to).
Even if you speed up a bit, you'd still likely be OK in both cases still, but might make a difference if you are talking like 16MPH+ as then you'd be better off with -025 and -05 sized nozzles.
Just my 2 cents. Lemme know if you have any questions
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New sprayer tips for burndown
