cannot answer that as i joined BMA in 1977 and the 1-11's and 707-321's were long gone...
we were going all Douglas jet by then with G-BFIH and Finnair's YB
dovedale and darleydale (later Merseyside)
ulster came later on with AB
i seem to recall the new LPL DC-9 service we started in 1979 was at first
5 rotations like the MME but i maybe mistaken...
best hot breakfast ever was on the BD331 out of MME
which back then was supplied by the hotel St George near Middleton St George airport MME...
big sausages, mushrooms, smoked bacon and KIDNEYS yum it was delicious
we started Med and Canaries holiday charters on the 3 x 707-320C's with 212 seats in 1982 for 3 or 4 summers plus long haul to LAX, YYZ, YVR also.
G-BMAZ
G-BFLD and LE
no IFE, really tight seating but the pax drank the bars dry, bought all the duty free, fell asleep and never complained!!!
very early one morning we at LHR had a 707 divert into us from Alicante due fog at EMA, when we opened the door on B4 stand the jetty filled with the aroma of Ambre Solaire and the hat racks jammed full of donkeys and sombreros LOL (did we really buy all that tourist tatt back then )