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Farm Machinery
Competition Ploughing
RADIAL VS CROSS PLY
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<blockquote data-quote="Pennine Ploughing" data-source="post: 7815620" data-attributes="member: 999"><p>Water in back tyres is really only any good for holding the back end down when having a front loader on, same as weights on front when having a heavy weight on back, </p><p>Also having water in tyres etc will all add up on weight for transportation etc, along with a real sh1t of a job when having a flat,</p><p>With regards to ballast on bigger tractors, it's to do with the fact that having more power than traction will cause lots of wheel slip, so to reduce this they ballast them up, this will not apply to vintage Ploughing, yes both the tractor weight and power is lot less, and can be a problem at times, but if careful handled will plough no bother </p><p></p><p>Now the tyre performance with water in is at a disadvantage from a just air filled tyre.</p><p>Reasons are that when you have filled 3/4 full of water, you have reduced the air capacity to 1/4 of what it was, this means that the air pressure has to be a couple of psi higher, due the sag in tyre wall at bottom, same would happen with what ever weight you added, and due to less air as a reserve to hold the tyre up from sagging.</p><p>So this means that with little and limited reserve of air tyre has to run harder,</p><p></p><p>Firstly </p><p>Meaning the say only 2 bars on 1 side and 1 bar on other side of tread is in contact with the ground and little give , however in a dry air filled tyre it can be run at lower air pressure in wet condition, giving 5 bars in contact with ground not 3, this gives nearly 70% more ground contact for more grip, and this only need be done on the land wheel, as furrow wheel never gives much if any bother.</p><p>Secondly, </p><p>With the all that weight in a ballasted tyre has to be dispersed on the ground, this causes compaction and will affect the front furrow of the Ploughing work each time it goes around the plot, thus can throw a different furrow in your work, this is usually compensated by adjusting the plough to plough sort of right, to make the work look better, </p><p>Thirdly, </p><p>When the plough is set to hide up the compacted furrow, it then become harder to pull, and then the circle begins again, !!!</p><p></p><p></p><p>The super king tyres you have, are the better ones of the cheap tyres, as the bars are at the right angle for grip, and are spaced out enough for self cleaning, and perform well for a cheap tyre, although when new they need the angle grinder on them to run right, however the biggest draw back in them is there a rounded top tyre like many cheap tyres, and the tread tappers off towards the sides, and will not perform well at higher pressure, as the side of tread has less contact with ground,</p><p></p><p>All in all, tyres is more important than people think, and often buy the wrong tyres from a cost point of view, and fit them wrong, yet think there doing a good job , yet have to take other measures to correct there mistakes and creating other problems down the line</p></blockquote><p></p>
[QUOTE="Pennine Ploughing, post: 7815620, member: 999"] Water in back tyres is really only any good for holding the back end down when having a front loader on, same as weights on front when having a heavy weight on back, Also having water in tyres etc will all add up on weight for transportation etc, along with a real sh1t of a job when having a flat, With regards to ballast on bigger tractors, it's to do with the fact that having more power than traction will cause lots of wheel slip, so to reduce this they ballast them up, this will not apply to vintage Ploughing, yes both the tractor weight and power is lot less, and can be a problem at times, but if careful handled will plough no bother Now the tyre performance with water in is at a disadvantage from a just air filled tyre. Reasons are that when you have filled 3/4 full of water, you have reduced the air capacity to 1/4 of what it was, this means that the air pressure has to be a couple of psi higher, due the sag in tyre wall at bottom, same would happen with what ever weight you added, and due to less air as a reserve to hold the tyre up from sagging. So this means that with little and limited reserve of air tyre has to run harder, Firstly Meaning the say only 2 bars on 1 side and 1 bar on other side of tread is in contact with the ground and little give , however in a dry air filled tyre it can be run at lower air pressure in wet condition, giving 5 bars in contact with ground not 3, this gives nearly 70% more ground contact for more grip, and this only need be done on the land wheel, as furrow wheel never gives much if any bother. Secondly, With the all that weight in a ballasted tyre has to be dispersed on the ground, this causes compaction and will affect the front furrow of the Ploughing work each time it goes around the plot, thus can throw a different furrow in your work, this is usually compensated by adjusting the plough to plough sort of right, to make the work look better, Thirdly, When the plough is set to hide up the compacted furrow, it then become harder to pull, and then the circle begins again, !!! The super king tyres you have, are the better ones of the cheap tyres, as the bars are at the right angle for grip, and are spaced out enough for self cleaning, and perform well for a cheap tyre, although when new they need the angle grinder on them to run right, however the biggest draw back in them is there a rounded top tyre like many cheap tyres, and the tread tappers off towards the sides, and will not perform well at higher pressure, as the side of tread has less contact with ground, All in all, tyres is more important than people think, and often buy the wrong tyres from a cost point of view, and fit them wrong, yet think there doing a good job , yet have to take other measures to correct there mistakes and creating other problems down the line [/QUOTE]
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Farm Machinery
Competition Ploughing
RADIAL VS CROSS PLY
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