decurion, thanks for the link. Looks like FDR can sample 4,8 or 16 times/sek. However not much information about ACMS which in fact airlines use. The data I got is in 1sek steps so not much to see. RA even sampled every two seconds. Crazy.
VGMX, VGMN as far as I know are the max and min from the whole flight not just landing. By the way where can I find ALPHA codes?