RC Veicle Speed Calculator

Jlolley

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Arrma RC's
  1. Nero
Found this speed calculator. Link below. The site will have boxes to enter values. If you don't know u can get them easily laid out on vehicle comparison tab of Arrma site. Also has info boxes to guide. Was spot on to the gps I had on my truck.

Might be helpful selecting gears.

http://www.scriptasylum.com/rc_speed/top_speed.html


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R/C Vehicle Speed Calculator

This calculator is used to find the approximate maximum speed of your brushless-powered R/C vehicle. Many factors have been taken into consideration to make this calculator as accurate as possible, but certain variables like vehicle weight, battery quality, drivetrain drag, etc can have an effect on the actual speed. Also, at speeds at or over 45mph, wind resistance, drivetrain drag, etc becomes a serious factor and may reduce the accuracy of the calculations further. Just keep in mind that the result is the maximum theoretical speed based on ideal conditions. Most likely, the actual speed will be a little less.

Fill in each of the required values (denoted by *) and press the "Calculate Speed" button to display the results. Some fields can be automatically filled with pre-determined values by selecting from the associated drop-down list. Fields beginning with †† are not required but will provide a more accurate speed calculation. If you do not know these values, leave them at their default value.



* Enter Front/Rear Differential Gear Ratio (?):
> Select Differential

* Enter Transmission Gear Ratio (?):
> Select Transmission

†† Enter Additional Gear Ratio (?):
* Enter Spur Gear tooth count (?):
> Select Spur

* Enter Pinion Gear tooth count (?):
* Enter total battery voltage (?):
> Cell Voltage

> Cell Count

* Enter kv rating of brushless motor (?):
> Select Motor

* Enter tire diameter in inches (?):
> Select Tire

†† Enter the added radius of tire
"ballooning" in inches (?):
†† Enter Current draw in amps (?):
†† Enter motor resistance in Ω (?):
 

Jlolley

Well-Known Member
Messages
203
Reaction score
100
Arrma RC's
  1. Nero
I agree, I went there first.I thought more people would see it here. But your right
 
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