Glossary
What is the critical angle of attack?
The angle of attack past which the wing stops flying. It is a fixed property of the wing and does not move with airspeed, weight, bank or power, which is the reason a wing can be stalled at any speed and in any attitude.
Also called Stalling angle
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.