[AT] Small Farm Tractors vs Garden Tractors

[George Willer]

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.