Hi, Your layout looks great. It's fantastic that you can get such a long run in a relatively small room. Great design ideas. The reference for the turntable was just to point out that you had a 9" in the plan, and were talking about a 22" and that I thought it would be too large for your plan and using the squares concept you could see the problems with it. Your 484 will be fine on the layout because of the long run you have planned, maybe a thru freight while you do switching with smaller engines.