[AT] Horsepower Question

[Don Bowen]

  On 10/6/2010 8:00 AM, Ben Wagner wrote:
> 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.

HP is a function of torque and RPM.  Comparing HP numbers are 
meaningless without the additional information.

There are many single cylinder from the early days of gas engines that 
were over 20 HP but at very low RPMs.

-- 
Don Bowen           KI6DIU
http://www.braingarage.com/Dons/Travels/journal/Journal.html