Now, my question is :
1. Any limitations for GP angle？ as you know ILS is 2.5-3.25.
2. If in radar vector ,can i fly directly some waypoint after FAF,and if able,how and when does the RNP change into 0.3?
3. How to disengage IAN'S APP mode ? the same as ILS ?
4. Do i need go-around,if lost raw data in IAN app?
5. Can IAN do G/A with A/P? what's the differrent of IAN's manually G/A and autopilot G/A ? such as FMA's change.
Does your FCOM not have the information?
For the 747-8:
1. 2.75-3.77 deg.
2. No.
3. Yes.
4. What raw data? Look at the approach plate. If a VOR or LOC approach, or DME required, then yes if not visual. If an RNAV approach, then no.
5. Yes. AP/FD FMA will be LAND 3 or LAND 2 or NO AUTOLAND or CMD or FD, as appropriate.