Originally Posted by Brian Abraham
with a spare $1,350 you can purchase "Introduction to the Abrupt Wing Stall Program" which may make a believer of you
Thanks for these references. Are they other documents since 2003 ?
Thank you to Hazelnuts39 picture.
We know that low and high "stalls" are experienced by pilots as sudden modification of lift and pitch.
To simplify, could we remember that only pressure and pressure positions build the forces and the moments modifying lift and pitch.
These forces and moments are resulting from these pressure variations.
The low stall from vortices, the high stall from the pressure cliff Inside the wave shock. The wave shock is not a straight line as shematized in airline books, but a larger cliff.
Both vortices and wave shock pressures modifications are resulting from fractal structure of lift (Liebchaber) in cavitations and some resonances around speed of sound. Both allow 'continuity' in the équations of air density around the whole aircraft until steady air distance.
Critical reading is welcome