The other day I was having lunch with a friend. We are both aviation enthusiasts so were wondering how we would fare (geddit!!) with the 16.9" wide Traveller seats available on BA's 787s.

We discovered that while she was 15" across at the widest point and could well fit in the seat I am 20" across at the widest point. Which is not only far in excess of the 787 seat's width but also an inch and a half wider than even a 777s seat!