[AT] Small Farm Tractors vs Garden Tractors

[Tim Bivens]

George,                                           Yes,
that and the fact that sometimes manufacturers use the
different horsepower rating methods to suit their
needs. Back in the 1960's when horsepower was a big
selling point the automobile manufacturers used the
highest horsepower ratings possible. Then all of a
sudden when the gas crisis hit and it wasn't cool to
advertise big horsepower anymore all of a sudden an
engine that had been rated at 400 horsepower one year
was rated at 250 the next.
Tim Bivens
Glen Rose, Tex.

--- George Willer <gwill at toast.net> wrote:
> Tim,
> 
> To add to the confusion are the different
> definitions of a horsepower.  The
> most widely accepted is James Watt's definition...
> 33,000 foot
> pounds/minute.  Then there's the Sears horsepower
> that I'm not sure how it's
> defined.  I THINK it is determined by the amount of
> noise a machine makes
> when it hits a brick wall at full speed.  It's used
> to rate air compressors,
> vacuum cleaners, lawnmowers, and maybe stereos. :-)
> 
> George Willer
> 
> ----- Original Message ----- 
> From: "Tim Bivens" <bivenshill at yahoo.com>
> To: "Antique tractor email discussion group"
> <at at lists.antique-tractor.com>
> Sent: Tuesday, March 09, 2004 9:24 AM
> Subject: RE: [AT] Small Farm Tractors vs Garden
> Tractors
> 
> 
> > H.L.
> > Brake horsepower and SAE horspower are both
> horsepower
> > ratings of the engines. The Case VAC and all
> regular
> > agricultural tractors are rated by drawbar
> horsepower.
> > This is what they use in the Nebraska Tractor
> Tests
> > and is the standard by which agricultural tractors
> are
> > rated. The smaller garden tractors, mowers etc.
> are
> > rated by the engine horsepower which is going to
> be
> > quite a bit higher than the actual drawbar
> horsepower.
> >
> > Tim Bivens
> > Glen Rose, Tex.
> 
> 
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