1.   And there are no middle seats.

2.   As those lines sell more seats, chances rise that a vacationer will get a middle seat or one that does not lean back.

3.   Because planes are now no bigger than they need to be on any particular route, that middle seat that was once often empty is now regularly taken.

4.   Access to the rear is afforded by a split middle seat that neatly and easily folds forward, clearing a fairly typical narrow passage.

5.   Airplanes must be ordered years in advance, and when demand exceeds capacity, the airlines can charge top dollar and many people have to fit into middle seats.

6.   But it is more than being stuck in the middle seat that has passengers up in arms.

7.   But the middle three seats did not have armrests and passage to the two-part rear bench was very tight.

8.   But the middle seat?

9.   Good legroom and headroom up front, generous space in the middle seat.

10.   Government reports show that fewer planes are arriving on time, more middle seats are occupied and more bags are arriving late or damaged.