[AT] Horsepower question

[charlie hill]

Yep,

--------------------------------------------------
From: "Larry Goss" <rlgoss at insightbb.com>
Sent: Thursday, October 07, 2010 11:21 AM
To: "Antique tractor email discussion group" <at at lists.antique-tractor.com>
Subject: Re: [AT] Horsepower question

> LOL!  Charlie, if you are like me, you come to the point that you just 
> can't trust yourself to tell things right any more.  It just happens.  I 
> find that I have to assume that someone is going to find errors in what I 
> say, and not feel ashamed when it happens.
>
> Larry
>
>
> ----- Original Message -----
> From: charlie hill <charliehill at embarqmail.com>
> Date: Thursday, October 7, 2010 9:10
> Subject: Re: [AT] Horsepower question
> To: Antique tractor email discussion group <at at lists.antique-tractor.com>
>
>> Larry, thanks for the correction.  As usual these days, my
>> memory failed me.
>> I should have checked my facts before posting but didn't have
>> time.  At
>> least it made for good discussion.  grins.
>>
>> Charlie
>>
>> --------------------------------------------------
>> From: "Larry Goss" <rlgoss at insightbb.com>
>> Sent: Wednesday, October 06, 2010 11:45 PM
>> To: "Antique tractor email discussion group"
>> <at at lists.antique-tractor.com>
>> Subject: [AT] Horsepower question
>>
>> > It's hard to "draw rules of thumb" out of the Nebraska
>> tests.  But here
>> > goes --- Drawbar pull is generally in the range of 50% to 60%
>> of the
>> > weight of the tractor.  Some Caterpillars drop as low as
>> 45%.  Drawbar
>> > horsepower is in the range of 50% to 70% of Belt or PTO
>> horsepower.
>> > Slippage of the drive wheels varies from 2% to 15% regardless
>> of steel or
>> > rubber, but rubber generally runs a bit higher than
>> steel   I don't know
>> > that the tests were ever run with the intent of maximizing the
>> balance,
>> > traction, weight, etc, the way we do as pullers.  I'm
>> sure the slippage
>> > values would be much higher if they did.
>> >
>> > I found out a few months ago that a one of my wife's close
>> personal and
>> > professional friends is the daughter of one of the men who ran
>> the
>> > Nebraska tests for years.  I hoped she would be able to
>> tell me stories
>> > from Lincoln about those tests.  Unfortunately, she
>> studied music and had
>> > no interest in what her father was doing at the University.
>> >
>> > Larry
>> >
>> >
>> >
>> >
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