On 08/11/2011 10:39 AM, andy pugh wrote: > On 11 August 2011 13:11, Dave<e...@dc9.tzo.com> wrote: > > >> It is about the same thing as rating a motor in horsepower. At a certain >> power - Torque and RPM are interchangeable to some extent >> > Or, to put it another way, no matter what you do with the gearing you > will have 400W available anywhere in the drivetrain. > > The same is true for car engines, regardless of the engine torque, the > car making the most power will have the most push at the wheels. >
Wellllll, yes and no. It depends on where on the torque curve and gearing all that usable power is available to the rear wheels. Low end grunt - hole shots off the line. High end grunt - no quick starts. And, how wide that power band is. So, it depends on where and when you want that power to the rear wheels. That's why transmissions have different gear ratios to be able to shift into. In other words, 400 watts in first gear is gonna deliver more power to the rear wheels at startup than 400 watts in 4th gear at startup. On the other hand, 400 watts in 4th gear at cruise is a much better power transfer than 400 watts at cruise in 1st gear. Mark ------------------------------------------------------------------------------ Get a FREE DOWNLOAD! and learn more about uberSVN rich system, user administration capabilities and model configuration. Take the hassle out of deploying and managing Subversion and the tools developers use with it. http://p.sf.net/sfu/wandisco-dev2dev _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
