Re: HP vs. Harrow Size

Posted by Leroy on March 03, 2012 at 14:34:38 from (69.88.223.179):

In Reply to: HP vs. Harrow Size posted by JHubnuts on March 02, 2012 at 15:33:40:

It has been 54 years since I have seen a disk as you are describing. A tandem disk is measured by the back gangs and a 7 blade on a side would be 8', a 6 blade would be 7'. Then the single disk measurements were the same as the front gang on the double disk so measuring 8' on the front would be called a 9' on a double gang. And that disk was very close in weight to the horse disk of the same size. Now that disk could have been made in 6 blade on a side up to about 10 on a side. the 6 or 7 would have been sold for the Oliver 60 tractor with a max of 18 pto hp and a Allis C would have been 23 max pto hp so no reason a Allis C could not have handled it, both tractors were designed to pull a 2-12" plow. The first disk Dad bought for the 44 2N Ford was a Dunhan and he traded it on a Oliver and it was pulled on many a acre with that Ford in ground it had just plowed with 2-12" plows. After Dad bought a second tractor in the spring of 1957 he traded that Oliver on a John Deere 6 blade on a side (7 1/2') KBA model in what was considered at that time a heavy disk disk and pulled it with a 38 JD A or later with a 49 JD B & 28 hp and later I pulled it with a 46 JD B with 20 hp. Now you go to a heavier disk like a McCormick No. 37 on a 7 blade on a side (8' 8" cut) like was sold for use with that tractor you have we pulled ours all the time with a 38 HP JD A ( disk is curently pulled by 5 belgin horses) it would be an easy load, a 8 on a side at 9'10" would be more what your tractor should handle in fresh plowed ground provided it is properly weighted and with dual tires. A disk of the weight of yours you could pull with your 46 hp tractor (equal to a Super M in power) at easly 12' wide. The ones that are saying you need way more power are probably too young to remember those disks. And that disk with 16" blades would only cut about 4" deep not the 6-8" they are thinking about. That tractor should handle a 3-14" plow that pulls twice as hard as the 2-12" plows the tractors that disk was made for pulled so even at a higher speed you should have no problems and that is with no extra weight or duals. Just don't because you have enough tractor to do it try to put a second implement in behind and pull the disk apart, that is what happened when Dad got rid of it and that was with a tractor of 20 less hp than what you have..

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