Originally Posted by
jcjeant
Hi,
Seem's the "know datas" about AF447 put the flight very near "coffin corner" and the margins for speed or altitude were very thin .. at least.
Coffin corner theory was de-bunked extensively on the 447 thread.
Margins may have been insufficient when you add in flying through a large CB... but that isn't "coffin corner".
Wy emphasize on FBW ?
Cause FBW is know for keep the plane flying (more easy than a full manual flying plane) on the limits or to not go of the limits
In transport jets it will be autopilot that flys it in cruise - whether the jet is FBW or manual. Current autopilots are not sentient and do not have the concept of the plane being "easier" to fly, so FBW or manual makes no difference.
U2 flies far far closer to coffin corner than commercial jets, and it is not FBW (I think - obviously I do not have U2 design documents...).