You guys are funny. In 2-5-2 config, the middle seat is two seats away from an aisle, but you have a choice of both aisles and also there is only one seat in each row thus inconvenienced. In 3-3-3, the window seats are both two seats away from the aisle, but you only have one aisle to choose from, so not only is it more inconvenient, but twice as many pax have to suffer (A and J, instead of just E). Do the maths!
fly Saha Air 707s daily from Tehran's downtown Mehrabad to Mashhad, Kish Island and Ahwaz