There is TACAN which can be used for navigation and approach, but AFAIK once you're on approach you need to bring it down manually. Also, if there is a need to maintain radio silence, the ability to use this sort of system goes straight out the window. It's is a radio beacon which tells both friendly aircraft and unfriendly missiles exactly where they want to go.
There is TACAN which can be used for navigation and approach, but AFAIK once you're on approach you need to bring it down manually. Also, if there is a need to maintain radio silence, the ability to use this sort of system goes straight out the window. It's is a radio beacon which tells both friendly aircraft and unfriendly missiles exactly where they want to go.