Continued to work on the boot lower frame rail, cutting out for the side rod joints. As with the NS frame rail it takes a lot of trial fitting before it lines up with everything, but it was very close by the end of the afternoon today.
Replacement OS perimeter rail for the boot
I started work on the OS boot lower frame rail today, as part of the plan to complete restoration of the boot area before moving onwards.
The holes drilled in the cross bearer yesterday I used as a guide to mark the holes in the new flitch plates. I then drilled and deburred them and gave them a coat of etch primer.