VOR X 13, the suffix X means it is a circling approach (it can be any suffix: A, B, C,....)
I have to confess, I never knew that, about the suffixes I mean. I thought I had been around a long time too. rather embarrassing
1120 at 4.5 DME is a 3.2 degree slope, that is no problem.
I agree it is not as steep as I first thought as I was using 4.5 D =2.8nm to threshold but I see now it is 3.1 as first stated by BOAC,apologies.
These discussions are without doubt an example of the huge benefits of sites like these.