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hai expert aircraft aerodynamic/avionic/aircraft engineer(s)..?
1:
do you think aircraft stability at medium-to-high AoA
(20 to 80 deg AoA) doesn’t have anything to do with the
aircraft’s underbody design ? or just leave it to FBW control to do the rest ?
2:
do you think aircrafts with many flat planes
at most of its underbody and
small number of (or doesn’t have any) vertical planes
(such as F-117, YF-23, B-2)
can be pulled to medium-to-high AoA (20 to 80 deg AoA)
(and stabilized it with/without the help of FBW) ?
3:
do you think thrust vectoring
is mandatory in question 1 & 2 ?
4:
do you think aircraft with complex medium/high
angle of anhedral+dihedral wing, such as phantom works’s “bird of prey”
can be pulled to
medium-to-high AoA (20 to 80 deg AoA)
(and stabilized it with/without the help of FBW)
?
thanks a lot 
Intro: I am no expert, any “expertise” is in avionics.
1) The stability depends on the vectors of aerodynamic center and center of gravity. So cant really say that the undebody design influences it to such extents.
FBW is just a transmission system, it doesnt have much role in the aircrafts inherent stability.
2) The MiG-29 has lots of flat planes and no FBW, but it is highly agile and capable very high AoA maneuvers, including the Cobra.
3) Desirable, but not mandatory. Once again the MiG-29 is the perfect example.
4) The Bird of Prey is a stable design, so the FBW is just a facilitator. And I doubt if there is a high AoA aircraft with significant anhedral/dihedral, it is not logical. Anhedral/dihedral configurations are for roll stability and roll stability inhibits maneuverability.
Midnight Confessions: Prey (1978)
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