However did we fly "A" Model Chinooks with no Nav Dudes, no GPS, no INS, no Decca, no Loran, no TACAN....just a couple of young fellas sat up front with a map, compass, clock, and a FM Radio to call Arty for a Flare near a location at night.
I do wonder how I got old enough to retire thinking back on it.....but at least it made for lots of flying hours considering the meandering routes we must have flown looking for something on the ground that matched up with the big print on the map.