Derby Talk

We had an interesting time at district this year. We finished 1st in pack on a plywood/formica track with a center rail in fairly good condition and a fairly gradual slope, but with a strong tendency for the winners to all come from the same lane. We ran a rail rider with COM about 0.65 inches in fr...

HangMan - I have an old can of 3in1 around, so I'll add that to my list. It may be a while before I get time to do any tests though. Stan - Again, interesting points. I need to find some time to think more about the forces on an actual PWD car wheel and axle before I can comment intelligently on how...

Stan, Thanks for the comments, and especially for designing the wheel testing rig in the first place. I agree that a longer period is helpful - maybe this could also be achieved by adding a circular protrusion with a smaller radius to wrap the string around in order to reduce the torque exerted by t...

Hello! this is my first post to the forum. My son is a Tiger this year and won first place at pack and 10th at district this year. Now we are starting to plan for next year's race. I am a chemist, and I thought I might be able to teach a little chemistry if we studied different axle lubricants, so I...