Originally Posted by
Ixixly
Currawong, I think you're making a LOT of assumptions here. Firstly in particular with the nozzles, they actually specify the droplet size already so they've clearly realised this is something that needs to be known and I don't think getting different nozzles to suit would be an extremely difficult task and likely DJI will sell these as accessories. In the manual it actually has 2 different nozzles specified, one at 130-250um and the other at 170-265um.
Secondly in regards to the Chemicals there are no doubt a bunch of reasons why they haven't bothered to register then for Aerial Application, you're taking the fact that they haven't as some proof of your opinion when you don't have nearly enough information.
Next up you pull $30 per hectare out your butt clearly.
Honestly, you've clearly made up your mind that there's no way a Drone can do what you do and are working facts to match your opinion and a whole bunch of hyperbole on top of it.
Ixixly - Don't get me wrong, if you can do it, legally, safely, and make money, you go your hardest and I genuinely wish you well.
But I would not be doing the right thing if I did not make you aware of the pitfalls - it would be a bad thing if you "did your dough" finding out the hard way about what is pretty common knowledge.
Look into the points brought up as part of your "due diligence", if you will.
It is good that suitable nozzles are offered, it will be better when certified pattern test data becomes available. Somewhat unusual this is not already here.
How a half a hectare or third of a hectare payload (assuming 10 liter capacity) affects work rate you probably want to look at.
DJI for example, state a work rate of about 3 hectares per hour is possible. Load size/ volume to achieve that rate is not stated.
$30 per hectare? Out of my butt? I was being charitable. That is about twice what farmers will pay for broadacre aerial spraying, subject to regional variations of course.
Some farmers in specialist areas will pay that.
So rework the numbers at the going rate. Not sure if that helps or hinders you. I thought more would be better.
As for "registered by air". Research is done by the manufacturer. Some are found to be unsuitable by air. Some, the research by air is not done for cost reasons. Some registrations have "by air" withdrawn as they are found to be problematic in general use.
We deal with it all the time. Frequently ask when a product will be registered by air. The response is usually "too costly to justify the research".
But don't take my word for it. Try here -
https://apvma.gov.au/