PPRuNe Forums - View Single Post - Glide slope vs Glidepath (EASA)
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Old 11th Oct 2020, 14:54
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capngrog
 
Join Date: Nov 2015
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Originally Posted by PEI_3721
Slope is that required, normally ground referenced; e.g.ILS GP is three deg.

Path is that being flown (or required) by the aircraft; aircraft referenced; e.g. flightpath is 4 deg, descending.

But PAPI = path indicator, whereas previously VASI = slope indicator !!!

Why the 'legal' tag ? Actions may be legal, but not necessarily safe.
This is the explanation that made sense to me, but I have not flown a precision approach in decades. My limited knowledge base was acquired "long ago and far away".

Cheers,
Grog
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