[AT] Small Farm Tractors vs Garden Tractors

[Tim Bivens]

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.

--- "H. L. Staples" <hlstaples at mcloudteleco.com>
wrote:
> The I think the Case VAC is rated by brake horse
> power while the smaller
> tractor carries a SAE horse power rating. Kind of a
> horse and pony
> arrangement. Someone correct me if not.
>  
> H. L. Staples
> McLoud, Oklahoma 
> USA
>  
> -------Original Message-------
>  
> From: Antique tractor email discussion group
> Date: 03/08/04 16:28:37
> To: Antique tractor email discussion group
> Subject: RE: [AT] Small Farm Tractors vs Garden
> Tractors
>  
> Bob,
> Correct me if I am wrong here but I bet that Wheel
> Horse is rated by engine horsepower instead of
> drawbar
> horsepower. Your Cub is rated at the drawbar. That
> makes a whole lot of difference. The Wheel Horse
> probably wouldn't even make 5 drawbar horsepower. I
> have a John Deere mower that is rated at 17
> horsepower
> but that doesn't really mean much. It sure isn't
> going
> to outpull my VAC Case at 14-15 rated drawbar
> horsepower.
>  
> Tim Bivens
> Glen Rose, Tex.
>  
> --- Robert Brooks <rbrooks at hvc.rr.com> wrote:
> >
> >
> > About 7 years ago when I first brought home Elmo
> my
> > 1948 Cub I had a
> > neighbor ask me to bring my truck over and pull
> his
> > BIL out of a
> > ditch. They have a long narrow gravel driveway,
> > with ditches on either
> > side, and apparently he wasn't paying attention
> when
> > off the edge of the
> > driveway and managed to both drivers side wheels
> of
> > the pickup in the mud
> > up to the frame rails.
> >
> > Well Joan had the Blazer so I offered to bring
> Elmo
> > over and pull him
> > out. His comment was no they had already tried to
> > pull the truck out with
> > his new 20HP Wheel Horse and if that won't pull it
> > out, it would be a waste
> > of time to try with an old 8HP tractor.
> >
> > I convinced him that it was worth a try and that
> if
> > Elmo couldn't pull him
> > out then I would run the truck over when Joan got
> > home.
> >
> > At the time Elmo had calcium in the Ag tires and
> > weights on all 4 wheels.
> >
> > I hitched the chain they had used with his tractor
> > to the draw bar and
> > pulled the truck out in about 1 min. I didn't even
> > get the tires to spin.
> >
> > Seems there is HP and then there is a tractors
> > ability to do work.
> >
> > What Dan didn't understand and should have is that
> > my little 8hp Cub out
> > weighed his Wheel Horse by at least 1500 lbs and
> > that the Cub was geared to
> > pull not mow lawns at 10MPH
> >
> > So there really is a big difference between a farm
> > and lawn and garden tractor.
> >
> > Bob
> > rbrooks at hvc.rr.com
> > Elmo 1948 Cub
> > Rock Tavern, NY
> >
>  
>  
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