Jmc1975/By188b, as I said the seating converts so that it is offered as 2x3. The seats condense/expand to make them wider. Seat pitch is also slighter bigger than in the all economy sections. A moveable divider with curtains separates the seats being used as Club Europe from those sold as Euro Traveller. Thus at first glance it looks like 3x3, but is sold as 2x3 and the seat width is wider (Not the seat cushion, but rather space is put between the seats by moving them).
As I said, they vary the size of the Club Europe cabin according to demand, hence the fact that I've sat in 4A in Euro Traveller flying LGW
. On the return flight the furthest forward I could get was 12A, due to the fact that the front 11 rows were Club Europe. On your 757 flight Jmc1975, one or possibly two whole cabin sections might have been exclusively Club Europe.
The below links for BA
's website show seating plans for the 757-200, A320 and 737-400. The first one is Club Europe, the second is Euro Traveller. Note an A320 can be configured entirely in Club Europe layout!
And just for comparison below is the link for UK domestic seating on those three aircraft - all economy.
, and other European carriers, can tailor the layout to demand very quickly, so a 757 operating AB
) (FRA / FRF / EDDF), Germany">FRA-LHR
might have a very high number of Club Europe seats. If its next flight was LHR
the demand might be less, so more Euro Traveller seats can be offered by altering the seat widths.