We do NOT depend soley on multiple long range nav guidance; we do it just like you...dead reckoning, pilotage, and stopwatch and compass is just as important in a B747 as in a Piper Cherokee...and when I'm flying a light airplane, I do it with map, plotter, and E6B in hand.
Blimey, just doing a rough diversion on your lap in a C152 while flying is tricky. I imagine using a whizzwheel and plotting accurate courses while flying a Cherokee is, um, 'interesting'
