Court Line did use registrations except for a short period in I think 1970 ( not sure why) - remember Court Line 373 being G-AWBL (recognisable by no "beep" at the end of the transmission unlike the -500s). Dan- Air were registrations (not sure when they changed- 1974 ish) and Britannia used Registrations until around 1973- they changed for some reason during a series of French ATC strikes - nothing changes!). Channel were always registrations- Midland were using registrations in 1970 and I guess they also changed in the early 70s. In 1968 Air France and BEA were using reg callsigns (Still Bealine Papa India at the sad time of the Staines crash). Pan Am used reg callsigns for charters (remember Clipper 766?) A lot of supplemental US reg callsigns I think (Saturn, Capitol etc.). BAF were reg.callsigns until T D Keegan took them over in 1972.
Pretty certain Condor 727s came in on Sunday with reg call signs as did TAROM IL-18s. The real problem for us spotters were those that didn't - did you ever find yourself at LTN in the middle of the night to "bag" an ATI DC9?
Last edited by 22/04; 7th Oct 2016 at 08:41.