"One might be led to think that at point A the blades are at their lowest flapping point they would also be at their lowest pitch. And that at point B where they are at their highest flapping, they would also be at their highest pitch. If only aerodynamic considerations were involved in this statement it could be considered to be true."
Lu; Where did you say this came from???
If a person believes this statement, then they will believe anything, such as the very next statement.
"A Rotor system however has the qualifications necessary to take on certain properties of the gyroscope."