when i joined at LHR in 1977 the dc-9-15 had 85 seats,
some years later we put 90 in...i think yes when gla/edi/bfs started.
i think later after i left in 1985 it reverted to 85y ?
diamond service and all that lol
we often had 87 or 92 on board on the bd332 or 338/340
one on flight deck j/s and one on the little extra j/s in front of tail cone door exit...
the pilots loved someone on the flt deck j/s,
had to be pretty with big t***!