767 Question
Today I flew in a BA767 FCO-LHR - in seat 24A right at the trailing edge of the wing. I noticed that throughout flight the port inboard aileron was deflected up so its trailing edge was about 50-75mm above the faired position with the trailing edge of the retracted flaps and the rest of the wing. The starboard inboard aileron was deflected a similar amount down.
If this had been a one off, I would have put it down to a 'bent airframe', although it does, on its face, seem quite a large deflection to keep the A/C in trim.
But in January this year, I had occasion to fly in a similar seat from NRT to AKL on an ANZ 767 - approximately 11 hours. The inboard ailerons were deflected exactly as on today's BA flight.
So the questions:
Is this normal for the 767? If it is it seems a huge amount of fuel must be being used worldwide to facilitate flying in trim like this.
What is the trimming technique on the 767? I have not flown it but on the 737(200) which I have, the technique was to take any 'bent airframe' or turning tendency out with rudder trim so the ailerons were faired with the wing.