Globe gear box

[Pat Roche]

I have been trying to develop a drivetrain for my team for the past few months. Right now we move about 5fps and have incredible torque. I am looking to gain some speed with a minimal amount of torque lose and with power constraints (can't use too much). I have resolved to coupling the globe motor and CIM together. I have matched the rpm of the 2 to within 3%(about 186rpm) I am looking to utilize the two speed on the go shifter. The problem I am running into is how to find my velocity based on a 3.5 inch wheel for a track. Could someone verify how to do this, I would great appreciate it. I'm sure there is another thread for this I just couldn't find one.

I haven't heard of anyone using a globe in their tranny but if someone has please send me some input via pm or thread.

Thanks

-Pat