I've been working for quite a while to finalize plans for a gearbox for this year's bot. I've done much research, and gone through many calculations, but now I seem to be stuck on one factor on the JVN calc sheets. It seems that no matter how much I search for the solution I can't seem to find what "Fractional Weight on A/B Driven Wheels" means. That and the Drivetrain Efficiency (for which I've been assuming 0.65 will work, though I may be wrong) seem to be the only things keeping me from designing a transmission that won't draw too much current.
I was hoping someone could explain these factors to me. I'd really like to get these plans done soon!

If I've missed a previous thread applying to this in my search, please tell me.
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Mentor to Teams 555, 1929, and 2070!
Currently working in hardware design at Cisco.
Cornell University DARPA Urban Challenge -
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Co-Captain Team 555 - 2003,2004,2005
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