Originally Posted by
percysmith
Not mathematically:
77W = 231 inches
= 9 x 18.5 inch seats + 12 x 2 inch armrests + two 18 inch aisles + two 2.25 inch seat to wall
779 = 235 inches
= 10 x 17.4 inch seats + 13 x 2 inch armrests + two 16 inch aisles + two 1.5 inch seat to wall
17.4 will be more than 77W 10-abreast and 737 but less than what a 74K was
Agree with percysmith's math, but want to add that some airlines play with their seat width and armrest measurements so they are not always a like for like comparison.
For example, SQ, on seatguru, lists the seat measurement at 19 inches for their 777WR/N product (the new one), but, from flying with them, I can tell you the armrest is slimmer in order to make the 19 inch number. Armrest might have been 1.5 or 1.75 inches. I didn't get a tape measure to confirm but I've put in a lot of butt in seat miles across different carriers so the difference was definitely noticeable.