About the Study Guide

You are looking at a preview of what’s in the timed Illinois Snowmobile Ed Course. Feel free to look around, but you’ll need to register to begin progress toward getting your Snowmobile Safety Education Certificate of Competency.

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  • Stopping distance is calculated as:
    • Stopping Distance = Reaction Time Distance + Braking Distance
  • Braking distance is the distance traveled after you apply the brakes. It depends on two factors: speed and drag.
  • Drag factors
    • The drag factor is a measure of the friction between the snowmobile’s track and the surface it travels over.
    • Deep, powdery snow stops snowmobiles more quickly because it creates more drag than shallower snow.
    • Glare ice has less drag than deep snow, so snowmobiles travel much farther after braking.
  • The graph gives stopping distances at various speeds. Note, however, that your stopping distance could be different depending on your speed, the surface conditions, the weather, and the snowmobile track’s length and paddle depth, and on whether or not your track is studded. Remember that snowmobile brakes are designed to slow or stop the track of a snowmobile.
Chart illustrating Stopping Distances for Snowmobiles: Reaction and Braking Distances