As promised, here's the attic layout as of today.
Although not strictly to scale, the drawing details the use of easements and curves. If there's a curve in the drawing, even the slightest one, then it's on the actual layout. only the chimney and stairs ( at center ) interferes with the floor space. Although one reverse loop is obvious, a second is incorporated so that trains can switch directions continuously. I currently use the second one ( single track over curved bridge ) as a staging track, holding 3 or 4 trains off the mainline. I tucked an old oak desk under the triple track section that will eventually become Harrisburg. The desk houses my transformers inside a compartment once used for typewriters. The spur coming off the track below the curved bridge will eventually connect to a programing track on top of the desk, roughly at the same level as hidden track A. To the left of the chimney is where my sound system and record storage reside. When the sound of trains become monotonous I crank up the tunes. Track B disappears to a staging yard ( not shown ) that I plan to redesign in the future. For now, it holds the overflow of an out of control spending addiction in engines and rolling stock. the spur behind the chimney will become the lead track into the engine facility, pretty much covering the entire reverse loop beneath. That section of reverse loop that bisects the room will be hinged to drop down when access to the track deeper underneath is needed. That's it in a nutshell.
Bruce
