Originally Posted by
Asturias56
as I understand it cruise Missiles like the BGM 109G were able to navigate using TERCOM
This required a radar altimeter - wasn't this a trackable source when they were in flight?
That would depend upon what kinds of sensors were being used, and where those sensors were. Given that those missiles are still in service, I doubt very much anyone is interested in elaborating on that. Why are you asking?