Update 4.
I needed to make this new ACF dome structure proportional to my semi-scale aluminum shell while at the same time filling up the 6.5” opening. I couldn’t put the brass windows all the way to the front or rear openings because then the new dome structure would be way too long for the 18” shell.
Small patches had to be created to fill in the extra roof space. To fill in the opening I liberated a few aluminum roof sections from a 15” K-Line donor car that had the same roof curvature. The plan is to place a smaller roof patch in front of the forward brass window assembly. This will move it slightly forward when compared to the Budd dome to better match the Union Pacific plans. I will put a normal size patch at the rear brass window assembly. This will keep the rear at the same location as the original Budd dome so it will look proportionally correct. So far everything is coming together.
Stay tuned for the next step…
