BCAL used to do mail flights with BAC 1-11s, they removed some of the rear seat rows and built pens for the mail bags and put covers over the forward seats that then had mail bags on them.
I just looked at the "Night Mail 2" video. That aircraft seems to have all the seats removed. Maybe there were different routes that had different configs. I remember the bags going up the aft airstairs.
Last edited by dixi188; 8th Aug 2023 at 18:29.
Reason: Might Mail 2 seen.