Tonight I had a wee play around with my 737 side wall and linings to try and figure out whether the ‘side wall cut’ was above or below the bottom of the interior linings. Finding this out is important so that I can figure out how I will eventually mount the side wall structure to the floor.
After a small experiment it appears that the cut line is almost *exactly* at the bottom of the liners, and importantly, is level. This makes my life much easier when I come to designing the mountings as I have a nice flat base to start from.