Just had a cheeky look at UA's B772 business class...10 abreast vs 5 abreast on EI A333 to EWR, I must be making some mistake here right?
They are using 3 class B772, 8 F, 40 J, 221 Y. The J class is 2-4-2.
The 2 class B772 is 50 J, 217 Y. The J class is 2-2-2 with 2 rows just 2-2.
The B764 is 2-1-2