We are considering purchasing a new air drill. Have had TBH tanks for over 20 yrs. Your thoughts and input on TBT versus TBH would be greatly appreciated.
deerejohn
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compaction behind the drill on the freshly seeded crop is better?
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I don't think that a TBT cart pulls more down a hill because there is so much weight transfered to the tractor. As well, the forward movement as well as the drag provided by the implement in the ground tends to have the setup pull straight.
Because of the fixed axle, as soon as a TBT cart would begin to slip down, the tires immediately point up the slope again, steering the cart back online. This doesn't happen on a TBH because of the caster on front.
I think the biggest problem with a TBH on a hill is the castering front wheel(s). The wheel doesn't provide any directional stability, but steers down the slope automatically, which skews the back of the drill. Perhaps if the front of the cart was hooked directly to the drill to the axle (not able to turn in relation to the drill) and had a 5th wheel style hitch on top to allow the rest of the cart and rear axle to turn it would work better. This is similar to seedhawk carrying much of their weight on the rear of the mainframe.
Because of the fixed axle, as soon as a TBT cart would begin to slip down, the tires immediately point up the slope again, steering the cart back online. This doesn't happen on a TBH because of the caster on front.
I think the biggest problem with a TBH on a hill is the castering front wheel(s). The wheel doesn't provide any directional stability, but steers down the slope automatically, which skews the back of the drill. Perhaps if the front of the cart was hooked directly to the drill to the axle (not able to turn in relation to the drill) and had a 5th wheel style hitch on top to allow the rest of the cart and rear axle to turn it would work better. This is similar to seedhawk carrying much of their weight on the rear of the mainframe.
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You could easily have a 4 wheel steerable cart (not necessarily a 4 wheel steer, but that would be nice too). The cart could actually steer the back of the drill up the slope and correct any skewing that was happening. The advent of 2 GPS receivers on a machine means that one could run the tractor and the other the cart and hopefully they could talk to each other for end row turns!
Then you get to the point of since you're steering the cart, why aren't you using it to push the machine as well. We are starting to see drills that require a tracked tractor on the front (74' 5710s with a big cart almost require it). Rather than weight up a tractor so it can pull, why not use the cart's weight and tires to do a little pushing as well. Electric motors would be the only way to do it (hydraulics lose so much power), but it will come I am sure. That or rig it all up to that wild new Claas tractor that pulls from a 5th wheel.
Then you get to the point of since you're steering the cart, why aren't you using it to push the machine as well. We are starting to see drills that require a tracked tractor on the front (74' 5710s with a big cart almost require it). Rather than weight up a tractor so it can pull, why not use the cart's weight and tires to do a little pushing as well. Electric motors would be the only way to do it (hydraulics lose so much power), but it will come I am sure. That or rig it all up to that wild new Claas tractor that pulls from a 5th wheel.
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