Was it over rotated? Is over-rotation even a possibility with take-off slat on the YAK- 42 ?
Most likely it was not over rotated, but instead was rotated so late that ground collisions doomed the aircraft. One of the last images I saw before the aircraft hit the camera included what I believe was the starboard main gear strut torque link and it appeared to show that there was still substantial compression of the main gear strut. The wing had not yet begun to bear the weight of the aircraft.