Originally Posted by
Back Seat Driver
Paddleboat.
possibly consider that after 800ft. AGL, the 737 was above acceleration altitude and accelerating, retracting flap etc. while the 330 was doing the noise abatement climb with an acceleration alt somewhat higher than the 737.
Indeed! Certainly a possibility.
It was put to me that the reason a breakdown in separation was inevitable regardless of the 737's lateral track was due to the A330's lack of climb performance, at least relative to the 737. Your reasoning I believe supports my position. If the 737 had turned at the correct time and followed the path in my quick and dirty diagram, then there would have been more than sufficient time, given the A330 is back at 180kts until established on the radial, and the 737 is accelerating, for their to be vertical separation as provided by the respective procedures by the time their tracks intersected, if they would at all.