WK said:
the one thing helo pilots tend to trust above all other references is a DME system of some sort located locally, a good example being a TACAN on a heli-deck
Walter, How did you come to this conclusion; where did you hear this from? It's not true, certainly not in the low level, VFR, SH environment.
I was RAF trained (initially jet fixed wing) and have been flying helicopters since 1979, 15 of them in RAF SH, quite a lot of it as instructor, some of it in that theatre. I later flew Search and Rescue, then Police, now corporate. In none of those roles do we rely on a DME system "above all other", in the VFR environment.
P.S. can we PLEASE get the photo above re-sized to suit the forum, so we don't have to keep scrolling across the pages?