I don't have trees or gates, but they have some enormous Wold fields.Field size, shape and poles along with traveling time to the field makes a big difference. I'll bet you have no gates to open and nice big fenland fields?
I disagree, hence ha/m/day. IMHO you are better to get the spray on at the right time, rather than going at 6km/hr in 300ltrs of water trying to get the perfect coverage. You have to draw a line in the sand somewhere. You will get the fertiliser done on non spray days anyway.Ha/hr figures can be misleading. Maybe they're spraying at a slower speed and are applying their produces in a more effective way. That's too broad brush a figure, but the general point is valid -- i.e. different operators make a huge difference in what they can get done.
I disagree, hence ha/m/day. IMHO you are better to get the spray on at the right time, rather than going at 6km/hr in 300ltrs of water trying to get the perfect coverage. You have to draw a line in the sand somewhere. You will get the fertiliser done on non spray days anyway.
Both t2, I didn't ask their mix but you ought to get the chemical in in the time it takes to fill with water.Did you average it out over a number of products? If you were doing a T0 and they were doing Atlantis, they could be forgiven for going more carefully to get a very important job done properly?
Does this not just confirm what we expected - that moving from 24m to 36 gives more output (186Ha/day to 238 with your well-gathered figures), but not 1.5 times, because moves etc take just as long with a 36 as a 24? I realise you're trying to de-couple the different working widths in your benchmark, but I'm not sure that the result is fair.This, and them being highly skilled, is the most underestimated asset which never appears to be too high on people's priority list when discussing spending £100+k on a new bit of tin.
By way of an example I benchmarked myself on a 6000hr 3000ltr 24m self propelled vs a large estate that runs 3x relatively new 5000ltr 36m and they did 6.6ha/day per metre of sprayer, whilst I did 7.75ha/day.
A chap on the seat that does not need to get the calculator out all day lifts output considerably.
I'm guessing you don't fill at 1000l/minBoth t2, I didn't ask their mix but you ought to get the chemical in in the time it takes to fill with water.
Fert yes, spray noI'm guessing you don't fill at 1000l/min
The other much more serious aspect to all of this is the Sprayer Operator ! Now it may well be some people have an operator who is happy to get up at 4.30 to load 6 lorries with wheat, to then fuel the 8000litre £400,000 sprayer and then head off to do the first 800 acre block before lunch(no time for stopping for lunch gotta get on !) and then moves 80 miles to the next 700 acre block which he finishes just before dark (although he can at least pour himself a nice cup of tea whilst on the return 80 mile journey!)The huge benefit of two sprayers is that if you have two hours of decent wind in the morning, you can send both sprayers out in different directions to different farms to be ready to start when the wind drops. Together they get four hours of spraying in total. Say your one big sprayer has double the capacity, but it has these two jobs to do on two different farms with different sensitive crops. It starts at one farm at the beginning of those two hours, spends an hour to finish the job that took the smaller sprayer two hours to do, but then has to wash out and drive to the other farm which takes 45 minutes. By the time the big sprayer gets to the second farm, it has to fill up with the new chemical, which takes 15 minutes, and then it has run out of spraying window. The results is the two sprayers get four hours of spraying in, whereas the big sprayer only gets an equivalent of two hours of spraying in (assuming double capacity).
A bit of a contrived case, but that sort of thing does happen quite a bit.
The other much more serious aspect to all of this is the Sprayer Operator ! Now it may well be some people have an operator who is happy to get up at 4.30 to load 6 lorries with wheat, to then fuel the 8000litre £400,000 sprayer and then head off to do the first 800 acre block before lunch(no time for stopping for lunch gotta get on !) and then moves 80 miles to the next 700 acre block which he finishes just before dark (although he can at least pour himself a nice cup of tea whilst on the return 80 mile journey!)
But it would be much easier with 2 sprayers and 2 less stressed operators.
me and my father often work it like this if were flat out. He will get up at 4am (he likes getting up early) do a couple of loads then I will take over at 8 and spray for another 12-14 hours. Can get serious amounts done. And we would rather do it ourselves than pay someone to do it. We need to pay for lots of shooting in Wales anyway!
Strange you should say this ,,,,, over the last couple of years the local big affairs have all had to go out looking for new sprayer operators ,,,,, with varying success I believe ,,,,, all very well if your a keen owner operator , but even being a owner operator the ' just nipping out to put a couple of loads on ' at 7 pm can start to wear a bit thin with wife's and family ,,,,, those who are young enough not to worry about such things may just change their minds after 30 odd years