In this video a stall happens at 1:40 upon reaching the critical angle of attack. The air flow is now detached from the upper part of the wing, resulting in higher pressure above the upper part of the wing, thus eliminating the major factor of lift.
Let's imagine that we have extremely powerful engines and enough tail stabilizer authority to maintain horizontal flight with any speed.
Is it possible to maintain horizontal flight when:
- wings have high angle of incidence (let's assume some experimental design)*
- aircraft has zero pitch condition (straight and level flight)
- permanent state of high angle of attack (as the consequence of the 1 and 2)
*high angle of incidence is an angle between wing chord and longitudinal axis of the plane (fuselage)
I assume, the lift that we will get in this case, will be generated mostly by Newton's law by deflecting air ONLY by the LOWER side of the wing.