No it's not true. The centre of rotation is different from the centre of mass. You usually measure torque from the centre of mass in order to simplify the calculations involving the centre of mass (as you are defining those distances as zero).
The centre of mass is usually pretty close for aircraft, however, so it's easy to teach that the two are the same, with out the confusion of teaching year 12 physics to those with a *ahem* imperfect understanding.
