Glossary
What is pilot induced oscillation?
Over-controlling in pitch or roll, where each correction arrives late and too large, so the aircraft oscillates instead of settling. It is a distinct problem from a power push over or mast bumping: a piloting-technique issue, not an aerodynamic or structural one, and it is one of the more common struggles in early gyroplane training.
Also called PIO
That is the whole entry for now. The longer version, with the mechanics and worked examples, is still to be written. See autorotation for how those read once they exist.
