Hello Rich. Welcome to the Branson Forum.
This is mostly a German forum, so most of what you see here, will be European models.
The F36Hn is the equivalent of the 3515H, with some changes for the European market. Even within Europe, there also some minor changes between countries. For instance, the “N”, means narrow, since this tractor can also be setup as a vineyard and orchard tractor and a tractor too wide, is often a problem.