Thanks for the input on the layout. Carl, can you elaborate on the kill switch you are talking about? He has a Lionel transformer that operates up to 4 different circuits. I have been trying to figure out how to do the switch thing between loops and cant seem to put my head around it. We will need to have the loops operate separately, which is easy enough, but operating with the loops connected with a smooth transition between loops seems to be more complicated.
Adriatic, I like the idea of the pneumatics, I'l have to explore that further.
Ok, transformer channel 1 operates the outside loop. Transformer channel 2 operates the inside loop. Channel 3 is trolley. Channel 4 is Accessory power fixed voltage.
The two loops are isolated by cutting a small piece of track, say 3", to place between the switches for the crossover. A Plastic O27 pin is used in one end of the small straight, on the inside loop side.
Now the power does not pass between the two loops, permitting two train operation with separate handles.
A simple toggle switch (On/Off) is used. A wire from Transformer Channel 1 is connected to one pole and the other pole is connected to loop 2 center rail.
For Transformer channel 1 to operate 1 train on both loops, Channel 2 is moved to zero and the switch is placed in the On position. Now Channel 1 controls the entire layout.
It would also be helpful to have kill switches for the passing siding and the two spur sidings to provide a place to park a train and engines and not have them run.
I could create some diagrams if that would be helpful.