Yes all ready

Some pilots have made their own escape routes planning charts, it also depends on the operator. However, if there is an official EASA document, please be so kind to share it with the group. Many thanks in advance.

Hi Martin,
I do not think there are any GM from EASA on this (probably the same for FAA but I'm going to check). It's all about drift down performance which is different for each aeroplane. This maybe of some help to you https://skybrary.aero/articles/mountainous-terrain-escape-routes and https://skybrary.aero/articles/emergency-descent-guidance-flight-crews
Best wishes
Nigel Johnstone
Operations Director
Jetcentric Ltd
njohnstone@jetcentric.co.uk

Martin
Your OM Part A sec 8 or maybe OM Part C will have guidance on this. Here is a useful article from the FSF https://flightsafety.org/asw/dec07/asw_dec07_p30-35.pdf
Best wishes
Nigel Johnstone
Operations Director
Jetcentric Ltd
njohnstone@jetcentric.co.uk