When setting up your servos with the Quad Servo DCC Decoder (see https://model-railroad-hobbyist.com/node/42087 for details), if the servo stalls against an endstop for an appreciable time then you may notice that the heatsink attached to the voltage regulator gets rather hot and, in extreme cases, this can cause the regulator and the QSDD to shut down.

I have a 37+ year old SD40-2 and would like to install a new DCC motor.  What all do I need to do this? I also need a new rear worm drive assembly for the rear.  What is a good source for old parts?  Any help is greatly appreciated.

https://newatlas.com/transport/world-first-battery-electric-locomotive-fuel-consumption-wabtec/

Rail technology company Wabtec has demonstrated an electric locomotive that could help lessen the environmental footprint of heavy-haul freight services. The company's battery-powered FLXdrive locomotive was used as part of a hybrid system over a three-month trial, where it reduced the fuel consumption of the entire vehicle by 11 percent.

For me when starting a new railroad (this will be my 14th) I like to start with the bench work. What will fit in the space, how big are the aisleways, setting minimum mainline radius for the layout. As I model the prototype i then work to fit that into the space I have set. The nice think about a large layout is moving a inch or two here or there I can do as long as I keep my minimums. so with that thought here are two idea I have for the new space one with the thought less is more.