[AT] Horsepower Question

[David Rotigel]

Clearly when your Super A was built the horses were bigger!
	Dave

On Oct 6, 2010, at 9:00 AM, Ben Wagner wrote:

>  Here is a puzzler that maybe someone with a better knowledge of
> engines can answer.   I was asked this question, and had to announce
> that I needed to look it up.  What better place than the AT Mailing?
>
> I have a Super A with four cylinders, producing c. 20 HP.
>
> I have a lawnmower, with an engine that says it is also 20 HP, with  
> only
> two cylinders.
>
> What is going on?  Is this two different measures of HP?  Or has
> technology improved that much?   What makes a little two cylinder  
> "small
> engine" have the same HP as four cylinder "tractor" engine.
>
> Thanks,
> Ben Wagner
>
>
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