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Farmall & IHC Tractors Discussion Forum
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Speed Plowing.

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High Octane

11-06-2012 13:17:12




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anybody do this with a letter series farmall?




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LenNH

11-29-2012 17:06:34




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 Re: Speed Plowing. in reply to High Octane, 11-06-2012 13:17:12  
A while back, I sent a note about an old test of plowing speeds (back in the 1920s, I think). The tests showed that horsepower requirements went up drastically as speeds increased, something like the way air resistence goes up with speed (as I remember, for air resistence, the change is "as the square of the speed." This means that if you double the speed, 2 squared gives 4, so air resistence at 60 mph is not twice as high but four times as high as at 30 mph). I don't have any formulas for changes in plow resistence, but I do remember that it was substantial. This is, I suspect, why our steel-wheeled 10-20, which would pull 2-14" plows through thick and thin in second gear, at around 3 mph, would not pull this load at all in third (a bit over 4 mph). My understanding is that tractors back "in the old days" were designed to pull their "rated load" at what was then called "plowing speed." I imagine that 3 mph was considered an economical speed in those days, since the engineers knew that a lot more power would be required to pull those plows at 4 mph, especially on steel wheels, which robbed something around 35% of engine power (this helps explain why tractors were rated 10-20, 15-30 and so on--all that engine power was available on the belt, but a lot less of it went to the wheels). I believe horse plowing speed was nearer 2 mph, so 3 probably felt fast in the 1920s and 1930s. I plowed with a steel-wheeled 10-20 for a good 10 years, and I can personally testify that 3 mph on steel is about the upper limit for your backside. On a gravel road, you couldn't even stand 3 mph--we always throttled back in second or third to get maybe 2 mph on the road.
I probably have the plowing report around here somewhere amongst all the useless memorabilia, and I will look and then post anything I find. If you like data and theoretical stuff, you'll find this interesting.
It would be very interesting to see what modern plows require in the way of horsepower. They might quite a bit different from the old stuff (our plows were made in the 1920s).
Any ag engineers out there who would like to give us an update on this? I'd love to know!

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IH fan

11-08-2012 17:36:40




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 Re: Speed Plowing. in reply to Randy in penna, 11-06-2012 13:17:12  
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Not a lot different than pulling tractors (or race cars for that matter). From the smoke coming out of them, I'd guess they just build a pulling tractor and then instead of pulling a sled, they pull a plow. Almost any hobby costs money, and depending on how deep your pockets are, will make the difference on your hobby of choice.



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sflem849

11-08-2012 17:13:00




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 Re: Speed Plowing. in reply to Duanes, 11-06-2012 13:17:12  
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My SMTA won't plow for snot in 3rd WOT. It will do a nice job at 3rd half throttle. I guess I can gear up and throttle down. That is the way we "they" say to do it nowdays.



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The Dukester

11-08-2012 13:30:54




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 Re: Speed Plowing. in reply to High Octane, 11-06-2012 13:17:12  
I always thought that plowing in 3rd gear wide open throttle with my Super M and 3-16's was pretty fast, but working at two jobs made it kinda necessary sometimes to "get 'er done". The old Super M had 4 1/8 bore sleeves and pistons and was well tuned and developed nearly 60 hp.

This speed plowing looks like something people with too much money and lotsa' time on their hands wouold do.



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Lucid

11-07-2012 10:38:45




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 Re: Speed Plowing. in reply to DC Snider, 11-06-2012 13:17:12  
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That's crazy! Had my sound system on.



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IH fan

11-07-2012 09:22:21




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 Re: Speed Plowing. in reply to IHFORDFARMER, 11-06-2012 13:17:12  
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Build an 80 HP "pulling tractor", then pull a 2x14" plow in 5th gear :lol:



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SD Pete

11-07-2012 08:22:33




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 Re: Speed Plowing. in reply to High Octane, 11-06-2012 13:17:12  
How does one speed plow with an M?



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IH fan

11-07-2012 06:46:01




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 Re: Speed Plowing. in reply to Ihcowner, 11-06-2012 13:17:12  
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I take it you've never been to the Knoxville Nationals??? :D



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mkirsch

11-07-2012 06:24:10




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 Re: Speed Plowing. in reply to High Octane, 11-06-2012 13:17:12  
Why would anyone want to do that? Why would anyone want to do ANY type of racing?

Is there any form of racing that you enjoy? Dirt oval? NASCAR? Drag racing? Motocross? Tour de France? New York Marathon? Snowmobile? Hill climb? TRACTOR PULLING?

Speed plowing is just another form of racing, and the reasons people do it are the same reasons as for any other type of racing.

1. For the thrill/rush/challenge.

2. Because you can.

It's not like they intend to plant crops after a speed plowing contest. They'll work the field over again with proper equipment first. Duh.

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rustyfarmall

11-07-2012 05:59:28




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 Re: Speed Plowing. in reply to RTR, 11-06-2012 13:17:12  
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I've seen a few of those youtube videos. What I don't understand is why anyone, in their right mind, would want to do it, but then, obviously those folks are NOT in their right mind.



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IH fan

11-07-2012 05:55:14




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 Re: Speed Plowing. in reply to RTR, 11-06-2012 13:17:12  

CNKS said: (quoted from post at 20:18:46 11/06/12) Speed plowing what's that? With a plow matched to a letter series tractor at a decent depth you are going to have a full load in 2nd gear, rarely in third.


I didn't know they did that here in the US... thought that was a Euopean thing. I can tell by some of the posts they do not know what you were alluding to with "speed plowing"... Google it or go to You Tube, there are some crazy videos on them. Big Fords (or NH) seem to be the big ticket on the ones I've seen.

http://www.youtube.com/watch?v=4TczQZUboe0
This post was edited by IH fan at 05:57:45 11/07/12.

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CNKS

11-06-2012 17:18:46




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 Re: Speed Plowing. in reply to High Octane, 11-06-2012 13:17:12  
Speed plowing what's that? With a plow matched to a letter series tractor at a decent depth you are going to have a full load in 2nd gear, rarely in third.



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charlie M

11-06-2012 16:10:24




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 Re: Speed Plowing. in reply to High Octane, 11-06-2012 13:17:12  
Around here it would just get you a lot of broken plow parts due to large rocks. I get enough broken parts with low speed plowing.



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robgIN

11-06-2012 15:52:39




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 Re: Speed Plowing. in reply to High Octane, 11-06-2012 13:17:12  
I really don't see the point in it, other than its a good way to tear up your equipment. Something most of us would have gotten a boot in the backside for if our dad had ever caught us treating his stuff like that. My take on it is its kinda like Jacka$$ with tractors...



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gene bender

11-06-2012 15:48:32




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 Re: Speed Plowing. in reply to High Octane, 11-06-2012 13:17:12  
The problem is the style of the bottom on the plow as some will just throw the dirt unless you dont care.Add on cover boards could help but you got to remember those old bottoms werent made for speed. I did plow onetime fall planted rye grass in the spring things were just rite had M with 3-14 and used 2-od Heisler 1/2 throttle could throw dirt pretty good at full throttle running 8in deep in good black ground.

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rustyfarmall

11-06-2012 14:53:54




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 Re: Speed Plowing. in reply to F-Dean, 11-06-2012 13:17:12  
Why would you want to?



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Dave_Id

11-06-2012 15:40:00




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 Re: Speed Plowing. in reply to rustyfarmall, 11-06-2012 14:53:54  
Maybe just to see how far you can fling the dirt with the plow.



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