Originally Posted by
sudden twang
It doesn’t matter where it is the principle is the same ( except perhaps local variations).
in this case the IAF altitude in ISA is above the glide presumably for terrain.
The Q is outside of ie. before the FAF can you follow the GS if your indicated altitude is below that on the chart when it has a black not below line on the chart because it’s hot?
If you’re on the GS and within the parameters it is deemed to be reliable then it should be fine? GS is a physical projected beam at a height above the ground. If you’re on the glide and you’re happy with the reliability of its identification then all should be good.
BARO corrections work both ways hot/cold to MOCA, MFRA, MSA, Platforms. Of course cold the more significant one
had an interesting TCAS event in to a US Airfield whilst on the glide. Hot temps ISA +15 territory. Airfield under the ILS has traffic departing to maintain an altitude below the ILS. We saw a -700ft Sep on the ND, ATC claimed it was more.
throws up the question that in warm altitudes an aircraft on the GS (fixed height above the ground) may not have separation to an aircraft maintaining an altitude below (in hot conditions).