Could you please advise how the MSA  incorporated in the PLOG is arrived at. Can the parameters be changed. The Horizontal and Vertical Warnings dont seem to have any effect and I cant seem to find any reference in the documentation.

Could I ask why you chose those parameters for the safety altitude?

The legal minimum for IFR flight being 1000ft above the highest point within 5 miles of track and for VFR I was taught to use 1000ft within 10 miles as a safety altitude.





neutron