I deleted the individual pics of the ships and combined them here with other ships I drew.
UPDATE! I inserted the Imperial Star Destroyer since the original post.
YES. they are vectored. When you reduce them, the proportions stay the same. What I do not like about Corel are the lines. Even if you use fine line...when you reduce it very small, the lines remain the same thickness, and they lines merge. If you enlarge it to a massive size, the lines are nearly invisible. I wish there was a line you could use that would maintain proportion no matter what size you make it. If I want to do that, I actually create the line...long and thin rectangles or curves. But that's not always applicable. Is there something I am missing?