If you’ve ever tried to build a landspeeder and tried to set a landspeed record at Kerbin’s poles, you may have run across a strange bug. For whatever reason, you simply cannot get your craft to go above a certain velocity. It just sinks into the ground and explodes as if the terrain colliders simply ceased to exist.
Even stranger, it appears that the speed at which the bug occurs is related to the acceleration of the craft. The land speeder above can reach 1808 m/s at