Having never flown a heavy, i'm probably not best qualified to post on this subject, but one thing does strike me as odd.. .. .Wouldn't control surface problems prevent this from happening? if i remember correctly, don't you need an all flying elevator to overcome instability and loss of control at transsonic speeds? Don't 738 ( and most other heavies ) have standard elevators?. .. .Like i said, i'm not an authority, so please feel free to set me straight if i'm wrong. .. .WO