Originally Posted by 2StgTurbine

I'm not disagreeing with you, but look what others have said. 744ButtonPusher says it was 12 fps, you say 16.6. The only way those can be true is if the descent rate was steeper than 3 degrees, but sailing has years of LSO experience and he has called it at 3 degrees. Obviously sailing doesn't know what he is talking about, but even you and 744 have different vertical velocities. And yet the last ADS-B data point was just as the video started and the aircraft descended at 475 fpm. To go from 475 to 1,000 fpm is a large change to the flight path. As I said before, we don't have enough data to make a USEFUL conclusion. The NTSB has access to the actual data that matters. Too many people on this thread have been wrong that even agreeing with your math muddies the water and makes it hard to get any useful information out of this thread.