SAS;
If you found the Decca 27 approach into Sumburgh interesting you should have tried the Decca app into Beccles! It was wierd watching the needle travel around a fish hook shape while you flew a steady heading and descended at the right rate.
I flew S61s in the South China Sea and they had Omega. First rain of the day used to unlock the lot, then you were on heading and time and hope the rig appeared on the radar after an hour or so. (Oh and HF to "communicate" with radio op at base and the rigs for the return loads.)
Odd thing was with half the kit we seemed to have a lot less incidents, and those we did have stemmed either from mechanical failure, or mis-handling resulting in either over-torques or hitting bits of structure.
I recently compared a NS operator Ops Manual from CAP360 days with a JAR manual. I was amazed at how good SOP's and practises we learned the hard way were gone.
SND