Here’s a little demonstration of the Dzhanibekov effect using our rotation-under-time-warp physics. In this case, we are using full Newtonian physics to do the rotation but running the analytic solver in parallel to compare the solutions. The long dim RGB arrows are full physics, the short bright RGB arrows are the analytic solver. Watch the blue Z axis (“down” to the pilots) flip between two directions: towards and away from the angular momentum vector (in yellow).