I wonder if someone with experience of flying in France (or anywhere else in Europe) can explain how they calculate their safety altitude (not how the RAF calculate their safety altitude in French or European Airspace).
I am involved in a military project trying to define a SALT corridor within an FMS. The french civilian FTE reckons the French do not have a stepped margin eg RAF rules 0-3000ft, add 1000ft, 3001+ add 2000ft but rather they just have one value. In true French-British fashion I don't believe him
as it seems weird that the UK, US and Canadians have stepped values and they don't.
Can anyone shed any light on this matter or point me in the direction of somewhere I can find the EASA (or national) regs for this?
Regards