Drew has a question for readers:

“Does someone know the aspect ratio of OO gauge? Is it compatible with HO gauge (i.e.: HO’s aspect ratio is 87:1)? Thanks very much in advance.”

Amy writes…

Drew, the answer to this question is clearly explained in Roberts Model Train Help ebook, however I’m sure one of our readers will happily explain the difference through this blog. I think it has also been covered before on this blog so so might want to do a quick search using the blog search box. Signed Amy (on behalf of Robert)