Re: PTO h.p. vs. DRAWBAR h.p.?

Posted by Bill(Wis) on February 15, 2005 at 08:05:13 from (12.75.202.191):

In Reply to: Re: PTO h.p. vs. DRAWBAR h.p.? posted by Lou on February 15, 2005 at 07:12:47:

If one horse pulls a plow that has a resistance of 550 pounds at a speed of one foot per second, that is one horsepower. Work is being done and is accomplishing the predetermined (by Watt) requirement of lifting 550 pounds one foot in one second. Modern engines produce their power in a rotary rather than linear motion, however, so one method of determining that power is to measure the twisting force, or torque, produced. Modern dynomometers measure torque and rpm and from these numbers calculate HP. Formulas are: HP = Torque X rpm divided by 5252. Also Torque in foot pounds = 5252 X HP divided by rpm.

Follow Ups:

• Re: PTO h.p. vs. DRAWBAR h.p.? thurlow 14:33:20 02/15/05 (3)
  • Re: PTO h.p. vs. DRAWBAR h.p.? Bill(Wis) 15:50:47 02/15/05 (2)
    • Re: PTO h.p. vs. DRAWBAR h.p.? thurlow 16:26:22 02/15/05 (1)
      • Re: PTO h.p. vs. DRAWBAR h.p.? Bill(Wis) 05:52:29 02/16/05 (0)

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