Am I correct in understanding that the GPS satellites can be moved around to suit the requirements of the people who own them i.e. the US military? So if they have operations somewhere they may move the satellites to improve coverage there and potentially leave other areas uncovered?
I remember many years ago when the RAF attack squadrons first got Tornado one of the navigators saying he still carried a map because you'd feel a fool without one when all the kit failed. With that attitude in mind I flew a one hour VFR nav' in Southern England last week using VOR, DME, NDB, looking outside with the map and with the GPS on just in case. Then again, I'm not a sky god so like the reassurance
