[Jeremiah H]

We just tested a prototype using the Banebot trannies, Kit sprockets, and kit AndyMark wheels. One CIM per gearbox.
<These figures are the best I have. These numbers were exchanged quite a lot tonight and they may very well be off a little>
My figures were as follows:
CIM-5370 rpm->tranny (12:1) ->sprockets (1.625:1)->AndyMark wheel
Gives you ~ 7.3 fps
When we timed it (free wheeling up off the ground) we came up with~6.75, which gives you about 92% efficiency, and from that we figured that the gearbox shaft was turning such that a directly mounted wheel would give you ~ 10.8 fps. That doesn't take into account loss in the chain and sprockets.
This was timed off of our slower motor, so others' figures may not line up. If anyone finds a big discrepancy, please let me know.
Hope this helps! Good luck!