<<like what (may have) happened with the jet downing out of jfk in 10/01>> well like you have these back of plane lift off turbulences that if you are the next plane lifting-off and it is too close to this turbulence it surrounds the plane like a tornado and the plane then nose dives into the water below at full speed but that is only if there is something wrong with your rudder and it happens to fall off. o that one was a clear explanation, like clear as mud.(vbg) Do you know that show called Monk? I think Detective Monk should review that 10/01 mishap.