User blog comment:WolfgangBSC/Wolfgang's Random Chat Room/@comment-24787182-20150325145918/@comment-13740085-20150325153726

I actually think the the cut-off for turning is closer to 900 meters, as I have an 810 meter ship that is still capable of turning.

I do know that around 700 meters is when you start hitting the phantom glitch on the far ends of the ship in question. I believe that once a ship reaches 1km (the exact length of Colorado), is when it becomes next to invisible in the dock.