Turning with 4WD / Pneumatic Tires / Wide Config

[Ether]

Originally Posted by Nemo

Our team is running a wide configuration 4WD with 8" AndyMark pneumatic wheels. Its wheel base is 32" wide and 15" long.

Did you mean to say its trackwidth is 32" wide?

Wheelbase is the distance from the front to the back wheels. Trackwidth is the distance from the left to the right wheels.

should we have seen this coming? I had assumed that it would turn well with a wheel base that was twice as wide as it is long.

Pneumatic wheels, because of their higher strain/stress ratio compared to solid wheels, exhibit much more stick/slip friction behavior than solid wheels do. That is a major contributor to the hopping behavior of skid steer.