North Cento Route
Was it so long ago?
Central Treaty Organisation, originally Bagdad Pact, something else before that-was between Iraq, Iran, Turkey, Pakistan and UK. The route was the airway just south of the USSR (at the time) border, from Ankara, Elazig, Tatvan, Van, Zanjan, turn off at Rudeshur? for dirty dart into Tehran. Herc would carry on over Isfahan and Shiraz, Sharjah to Bahrain.
The route is most probably just a std airway now, but then was quite intersting in an Argosy. I recollect that Elazig was the only VOR, the NDBs had a very short range and the Russians meaconed with some. The performance? of the Argosy led to an intimate knowledge of the mountains. Climbing out of Teheran in the summer, trying to get above the inversion was by extravagent use of water meth and more than often, emergency power.