There are some really interesting things on this thread, thank you.
A few points/questions please:
1.
rog747 I was intrigued by your mention of flights operating via Burma in your earlier post. It didn't strike me as an obvious calling point for an en-route stop as I thought they were a very isolationist country at the time, and I seem to recall that Rangoon had a short runway. I know I once looked into travelling there at around that time and the visa terms were very restrictive. Do you have any more detail please?
2. Also in the 70s I flew from Heathrow to Malta on an Air Malta Boeing 720B. I'm sure the flight was in excess of 3 hours, so would this put it as mid-haul at the time? I last flew there on a FR 737 from Leeds a couple of years ago, similar timings, but would now certainly put it in the short haul range.
3. Having mentioned it, could someone tell me why the 720B was regarded as being sufficiently different from the 707 so as to have its own designation?
Cheers.