Re: Self-positioned ILS approach
Radar vectoring charts are not designed to allow pilots to navigtate safely below MSA in IMC. They are for information only. Therefore whilst they can aid situational awareness during the approach, without some sort of ground-based position fix (specifically, radar) they are of little use.
Unless, of course, your company SOPs allow use of FMC position below MSA to be an acceptable way of determining your position - ours do not (FMC subject to large drift errors). In which case you might as well be allowed to do an FMC approach anyway which is kind of off the point of this thread (are they allowed anywhere in Europe?).
Descent below MSA is only allowable:
1) when visual
2) on an approved instrument approach
3) when under radar control (including radar-monitored 'self-positioned' approaches)
Using the Radar vectoring chart doesn't help us achieve any of the above.