Walter,
I was quoting the conclusions of the AAIB from their examination of the crash site and wreckage NOT from data extracted by Boeing.
"Groundspeed at initial impact was of the order of 150 kts, the track approximately 12 degrees True, and the aircraft was climbing with a flight path approximately 20 degrees above the horizontal. At initial impact the aircraft was erect, rolled slightly left and pitched approximately 30 degrees nose up, probably with little yaw angle."
Boeng found that, assuming the aircraft speed remained relatively constant over the period from the last steering command to the point of impact (a matter of approx 0.75 seconds), and taking account of aircraft tyre tracks and wind speed, an aircraft groundspeed of 162.8 kts is derived with an aircraft heading of 017 degrees True.