bmi
As I only ever travel economy I'm not sure whether bmi still offer wider business class seating but I do remember noticing on some of the aircraft travelling between BHD and LHR rows with just two seats and what appeared to be one squashed up in the middle. I also remember seeing a cabin crew member with some kind of winding mechanism which seemed to transform this seating arrangement from two to three. Am I correct or had I been just a little too long in the bar before boarding?