But then there's the descent rate as the CVR raises the possibility of a duck under during the last 100m, we are hearing the Navigator announcing 10m lower about every half second. There's 6.5 seconds between the Navigator's 100m and 20m announcements -- a descent rate of approx 740m/min or 2400'/min.
That's the RA readings, the ground was raising up!!! It's been said so many times and confirmed by MAK - they used the
radio altimeter.