FlyerTalk Forums - View Single Post - CX considering [confirmed] having 10 seats per row?
Old Apr 24, 2018 | 10:36 pm
  #598  
percysmith
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Originally Posted by sxc
Some more photos of the new seats and how snug they are in the real world

https://www.businesstraveller.com/bu...ing-777-cabin/
Originally Posted by percysmith
I'm still getting a lot of differences between reported widths, so I'm going to work out seat width from cabin width directly.

Assumptions for all aircraft:
Aisles = 16in, regulatory minima
Armrests = 2in and are counted even on the sides (e.g. aisles or window also count)
Distance between window seat and cabin side wall = 1.5in

So for 77W in 10-abreast, cabin width = 231in, take away two side walls, two aisles and 13 armrests = 170, divide by 10 to get 17.0in

Remaining calculations



I don't think anyone actually has a 19.5" A350, 19.11" 77W@9 or 18.4" A330 seat width, because the aisles will be wider for everyones' convenience.

But that's the whole point of my exercise - start with cabin width and cabin width alone, and assume everything else is the same across different aircraft. Finally an apples vs apples comparison.
Oh OK. I realised what I had wrong - the armrests:



Recalculate to get 17.2" seats:



Again if A380s and 777 9-abreast were built with identical armrests and aisles, seat width increases from 19.5 to 19.69 and 19.11 to 19.29 respectively

Or put it this way - if a 777 10-abreast is 17.2 inches as marketed, then A380 will have 2.5 inches more and 777 9-abreast will have 2.1 inches more respectively.
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