Re: How to firgure out Drawbar HP????

Posted by Bob M on January 02, 2005 at 14:58:43 from (69.201.120.79):

In Reply to: How to firgure out Drawbar HP???? posted by farmallkid From ONT. on January 02, 2005 at 14:39:53:

Actual DBHP can only be calculated using this equation:

DPHP = Drawbar Pull (measured in pounds) x Tractor Speed (in feet/minute) / 33,000

You can roughly estimate DBHP knowing engine flywheel HP recognizing it"ll vary depending on transmission losses, tractor weight, type of surface the tractor is running over (loose dirt vs hard pack, etc.), % tire slippage, etc. Figure about .7 to .8 x flywheel HP for most tractors.

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