Hello All,
On my 4’x8’ pike, I use Atlas 15-inch sectional track and PECO #2 turnouts. Both readily available.
I also use 18- and 22-inch sectional track and Atlas Snap Switches.
The “mainline” curves are asymmetrical. One-quarter of the curve is 15-inch sectional and the other quarter is 18-inch.
On the curved 3% grade, I used 22-inch and 18-inch sectional track for another asymmetrical curve.
I rearranged the track plan to add an easement at the base of the curved grade to eliminate derailments.
A spiral trestle (helix) is comprised of 15-inch sectional track too.
The #2 turnouts are used for the wye and the coal unloading and loading sidings.
I DIY-ed straight sectional track to flex track and modified a PECO curved turnout to bypass an unintended “S” curve.
GP40s make up a 4-unit consist that has no problem negotiating the asymmetrical mainline.
A 3-unit consist of 2 GP30s and a GP30-B successfully pulls 8 loaded Tyco 34-foot operating hoppers up the 3% grade.
An “Olde Tyme” excursion train pulled by a USRA 0-6-0 negotiates the same grade with a 0-4-0 Side Tank Porter as a helper for the 42-foot RPO, 3 passenger cars, and a converted gondola for passenger use, followed by a bobber caboose. None with blind drivers.
At the unloading shed- -at the top of the 3% grade- -a Plymouth ML-8 critter pulls the empty 34-foot hoppers out of the unloading shed for the shuttle, lead by a single GP30, down the spiral trestle back to the mainline.
For switching duties, GE 44- and 70-tonners are used.
A single GP38-2 pulls four 34-foot operating hopp