How did the Herc crews navigate to the DZ before GPS?
My jumps were all done in the days before GPS and I have since always wondered how the crews managed to take off from the UK and find a DZ (sometimes several DZs on the same trip) in the depths of the Danish or German countryside in the middle of the night. Presumably they used TACANs to get close - but how was the final run onto the DZ navigated?