Quote from Mr Optimistic:
Given that at some time near 2:10 the aircraft was trimmed and at an appropriate speed and altitude, and that at some time around about 2:15 the a/c was in 'line of flight' with low forward speed and high ROD but more or less level and engines at idle, is there any plausible configuration of the aircraft with limited roll excursion and plausible constant pitch angle (say less than 25 degrees) which if held which would execute the dynamics ?
I'm inclined to think that a considerable turn or turns must have been involved, particularly in view of the alleged proximity of the debris field to the LKP. Don't follow why you stipulate a constant pitch angle, though.