Very new to both the Cruiser RV "make" and this forum. I've noticed that most folks reference their TTs by a 3 digit number followed by 3 letters (i.e. 210 UDS, 189 FBR, etc.) I believe that the number refers to the TT's length and I suspect that the 3 letter code refers to a particular configuration for a given sized TT. Is there a glossary or "legend" within the site that gives a definition for the abbreviations? It just might be important for someone reading a particular post, if an issue applied to their TT (or a similar one). It also seems that not all Cruiser RV TTs have this suffix. The info placard on my TT makes no mention of any 3 letter code, only X-210. After a more than 30 yr association with the U.S. Army, where acronyms are a major part of both written and spoken communication, I'm driven to know what acronyms stand for. Any info will be appreciated. Thanks. RipVan