Thanks your reply was very helpful wow M 0.94 with no tuck and no need for YDs (747 series too) wonder how boeing tamed the properties of sweep
Btw, not really in need of precisely technical " Mr. Boeing-only-knows type of answers, a subjective impression will do;. I know the g limits with flaps are protected from thye stall to 40 deg. bank. I am still curious about the spiral qualities especially before directional and lateral trim at takeoff (i know this can vary, but overall)
no tuck at .94 M is a clue to very good longitudinal stability in the high altitude high speed regimes.
Just for discussion sake I am curious about everybodies plane Airbus, Boeing Douglass Lockheed I am a real nerd with these things. but I specifically asked about the 757 becuase I actually hope the fly it one day
Thanks again rhov