Originally Posted by
WHBM
I used to think it would be a substantial task to reconfigure, but it was apparently it just required a few hours, two engineers, and one box of spanners.
In the days before IFE, seatback screens, etc, fitting and removing seats could be done very rapidly (without requiring any tools).
If it was just a case of reversing the way they were facing (i.e. swapping the seats on the LH side for those on the RHS and turning them round) and keeping the same pitch, then the PSUs would still be more-or-less in the right place and the rubber strips that cover the rails would still fit.
I don't know the 1-11 that well (we rarely saw them in the hangar at LHR) but I'm assuming that the rails are symmetrical about the fuselage centreline, notwithstanding the 2+3 configuration.