would prefer something that is not a permanent fixture in the aircraft.
I had a student who was due for solo navex but really was not very good and needed decent weather conditions, this guy had his own aircraft (which will be relevant as the story goes on), after some time we finally got a day when many students were being sent on solo navs and of course this man wanted to do his, after some argument I finally told him that the only way I would agree was if he took a club Pa28 and I would be in his aircraft (Beechcraft with retracts - this way round so he could not leave me behind), but he would not even see I was there, to my surprise he agreed and we set off, with me having given him a discrete frequency to set if I pulled up alongside. All went well initially - the interesting thing was, tucked up under his tail in line astern, I could tell
EXACTLY when he got lost! He was actually still on track at this point but started to fly erratically, I pulled up alongside just before he went into controlled airspace.
So you CAN monitor with something not in the aircraft - but not one I would use often!
The daft thing was (and he had been briefed to do this if unsure of position) all he needed to do was turn due West and he would have safely reached the coast and been able to follow the coast back to home.
