Ken , Rat , 'n Smudge I too remember that the Omega was not so good on North / South legs , just where it was most needed . And the Barlu wx radar trick . Mind you when got on 732s it was heaven . With DME , NDB , Radar , and HF ; thought we could go anywhere . Radar down to min range , leave the Bilbao breakwater just on the right side ; lined you up nicely on the c/l even if ignoring the NDB .
Iceland on a UK 3 engine a/c , long range nav aid was Doppler and no HF . Leave Stornoway on hdg and time , just one turn point 100nm or so off the Faroes [ they had no radar or DME ] , left hand down a bit until wx radar picked up shape of Iceland , and NDB kicked in . Mind you used same technique on a '76 into Grand Cayman .
rgds condor .