Hi Adam,
I will try to keep my answers as simple as possible.
1. No, both are displayed on the PFD (ILS), ND (VORs/ADF) and RMI (VORs/ADF).
- VOR/ADF 1 is a thin needle - VOR/ADF 2 a thick needle. Only VOR 1 *or* ADF 1 can be selected at any given time, and same for VOR2/ADF2)
2. VOR/LOC will capture the radial selected on "master" side. the FD you selected first / or the side of which the AP is engaged.
- (HINT!) Selecting the same freq and course (ILS or VOR) on both sides (Nav 1 + Nav 2) will make life much easier.
3. Refer to Q1. It is possible to get 2 VORs (VOR1 + VOR2) or 2 ADFs (ADF1 + ADF2 ~if installed) to show up on the ND and RMI.
4. The ADFs will display similar to the VORs (Thin needle and thick needle, that is if you have 2 ADFs installed. 1 is more common). ADF needles are BLUE, VOR needles are GREEN
- (HINT!) Remember to verify the IDENT, every time you tune a new FREQ whether is be an ILS(PFD), VOR/ADF(ND)
4a. The Course, only affects the VOR. Remember that the ADF is a direction finder so changing the course will not affect your instrumentation.
- (HINT!) For reference, you should set the bearing you want to intercept on the course selector.
Hope this help.