[wild03]

In this series I will attempt to prove that is better to be quiet and be thought a fool, than to speak and remove all dough.
It was 3am the other night and it hit me, I could actually calculate the expected speed of my ZZ if I did a simple calculation. I took a rough measurement of the wheel diameter with a Mitutoyo caliper rated at 1/1000 in. that yielded .550 ~ .545 in. Multiplied that times PI ~3.142 to get a Circumference of 1.703 in.
Now we know Motor RPM and gear ratio, by consulting the handy owners manual that comes with each of the cars.

Therefore: I used the following formula,

RPM / RATIO x CIRCUNFERENCE / 12 to get feet per minute.

Here are some numbers for the 12:1 gears and the different motors:

12:1 – 10,000 = 118.26 feet/min
12:1 – 16,000 = 189.22 feet/min
12:1 – 21,500 = 254.26 feet/min
12:1 – 23,500 = 277.92 feet/min

In part II I will be taking some average run times with the different setups to compare the distance traveled with each setup!

In part III I will be adding in friction and drap coefficients to get a speed value closer to the actual value! Yeah right! J