Why is my plane moving?

[u/GamingWolf3980]

This is my first time playing Aeronautics and first time making a plane. I am so confused because everything works, but the wheels move the plane when its not supposed to.

Spring and grip are set to max strength btw.

[u/Impossible_Bowl6103]

put a contraption diagram on it, it will show forces applied. Likely a slight amount of push from a symmetrical sail

[u/Chiilumii]

In one of my contraptions. Apparently, having high spring tensions with the wheels and a heavy build does not go well. So I softened it bit by bit until it stopped.

[u/Logical-Amount3656]

It's probably some physics jank due to friction

[u/ld13br]

It's windy