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  1. #1
    Silver Member
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    Springfield Nova Scotia Canada
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    Branson 4720

    Default What size HP for a 3 furrow land plow

    Looking at a 3 furrow land plow Its an old Massey Fergus plow with 3 point hitch. Was wondering what Hp is required to move it along?

  2. #2
    Veteran Member
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    Jun 2012
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    Mt Crawford Va
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    massey GC 2400 JD LA 145

    Default Re: What size HP for a 3 furrow land plow

    Depends on how big it is. If it is a 16" plow or 12" makes a lot of difference. Measure how wide a bite each plow will take.

  3. #3
    Platinum Member
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    Feb 2012
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    699
    Location
    Germanton, NC
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    Kubota MX5100F IH McCormick Farmall 140, Massey Ferguson 135

    Default Re: What size HP for a 3 furrow land plow

    The type of soil will matter too. Heavier soil=more hp needed.

  4. #4
    Veteran Member
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    Jan 2010
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    2,468
    Location
    Northern, IL
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    Branson 2400H

    Default Re: What size HP for a 3 furrow land plow

    Lot of factors to figure:
    Like Ed stated width of the bottoms
    Type of ground
    Depth you want to plow: Usually no more than half the plow width.

    Weight of tractor and tire type is probably one of the major factors. I used to pull 3 -14s pull type with a 5600 Ford with R1 Ag tires which I believe is around 50-55 HP & weighed around 7000 - 7500 lbs. Seems like a lot of the newer tractors are light for their HP

    Example JD 5065E 2WD 4600 lbs JD 5065M 2WD 6300 lbs

    MF 4608 4WD 6063 lbs MF 2625 2WD 5250 lbs

    All of the above tractors are in the 65 HP engine 55 HP PTO range
    Artificial Intelligence will never overcome natural stupidity.

    Branson 2400H MMM & FEL

    JD 112

    BX1850 gone but not forgotten

  5. #5
    Silver Member
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    Location
    Springfield Nova Scotia Canada
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    Branson 4720

    Default Re: What size HP for a 3 furrow land plow

    Will
    have to check out the bite of the plow.

  6. #6
    Veteran Member
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    Apr 2004
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    East Coast of Lake Huron
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    Deere, several

    Default Re: What size HP for a 3 furrow land plow

    3x16 will stop a 8000lb 55HP tractor in heavy dry clay ploughing 8" deep.
    3x16 in damp sand will pull easy with a 25 HP 4000lb tractor.

  7. #7
    Platinum Member allen in texas's Avatar
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    Oct 2007
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    744
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    Levelland, TX
    Tractor
    Kubota Grand L 5740, loaded R1's w/642 lbs cast weight, 854 loader

    Default Re: What size HP for a 3 furrow land plow

    A (very) general rule of thumb is one hp per inch of cut. 3x16= 48 HP. 2x16=32 HP, 3x14 = 42 HP etc. It's a starting place. I pull three 14 inch bottoms with a 50 hp at the PTO tractor. Yes it will vary with your soil type, moisture, what's growing on it etc.
    You can remove the rear bottom if you can't pull it as a three. What tractor do you have?
    KK 72" tiller Rears SPF 72 inch Flail, FL960 knives, Cammond BS72E 6 foot BB,
    HF Quick hitch, RBT3584 rear blade.
    assorted two and 4 row diamond bar equipment, all junky.
    20 ft Big Tex 70CH
    Maxey 14000# 16'x83" GN dump trailer
    Oliver 6241 3 bottom rollover moldboard plow
    http://www.youtube.com/watch?v=EdEStYYl1Ts
    I like straight furrows
    1960 model 102 Ford 14 inch two bottom rollover plow on my little L3240

  8. #8
    Elite Member
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    Sep 2009
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    4,163
    Location
    Murray, KY
    Tractor
    265 MF / JD 310B Backhoe

    Default Re: What size HP for a 3 furrow land plow

    Quote Originally Posted by allen in texas View Post
    A (very) general rule of thumb is one hp per inch of cut. 3x16= 48 HP. 2x16=32 HP, 3x14 = 42 HP etc. It's a starting place. I pull three 14 inch bottoms with a 50 hp at the PTO tractor. Yes it will vary with your soil type, moisture, what's growing on it etc.
    You can remove the rear bottom if you can't pull it as a three. What tractor do you have?
    2x on that rule of thumb from my experience.

  9. #9
    Veteran Member
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    Mt Crawford Va
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    massey GC 2400 JD LA 145

    Default Re: What size HP for a 3 furrow land plow

    All good advice, even from one field to the next it can make a huge difference in hp needed to pull a plow. In the middle of our farm was a small field that was what the old timers called pushy. It was hard as a rock or sticky so that it built up on the plow and you were plowing with a dirt surfaced plow. many times both hard and pushy a the same time just in different places in the same 7 ac field. But remember this was a bad case and we plowed with a two bottom 16" with a ford jubilee, 32 hp. that fits with Allen's rule of thumb. One thing for sure if you go out to plow with not enough tractor it turns a smile upside down real fast.

  10. #10
    Platinum Member
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    Germanton, NC
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    Kubota MX5100F IH McCormick Farmall 140, Massey Ferguson 135

    Default Re: What size HP for a 3 furrow land plow

    Ed of All Trades, seems like our farm is the opposite of the one you describe. Most of ours is heavy clay but we do have a couple of small places that turn easily (light color and light soil). Our MF135 and kubota MX5100 pull two 14s okay. In a pinch even the old Farmall will pull he same plow in previously worked land.

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