Vdp Calculation On Airbus
Can someone help me in calculating the vertical descent angel for a non precision approach? I have heard several ways of doing this but I'm still confused.
The Jeppesen general flight supplement booklet has a table in the terminal section pages 3 and 4. However using the method I am familiar, still does not work out to the same figures.
E.g. FAF height 1900 AGL, distance from FAF to Runway Threshold 5.4 NM gives an angle of 3.2.
1. Is this angle the same as the descent gradient that you select on the A-320?
2. Is there a way to calculate the distance you should commence your descent to maintain a 3 deg gradient if you know the FAF height and the TCH or MDA?
Any help or comment?
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