If anyone is interested in knowing, I was forced to make a significant change in my locomotive's design. I knew the back end swung out an increcible amount in curves, but after the Galveston Railroad Museum train show I discovered is swung out enough to hit a train on an adjacent track. This posed a problem twofold - first, obviously, it would cause derailments if on an interior curve.
But second, and more importantly, if place on an outer curve, it might be a risk to the public, especially children, who usually get right up against the table at shows. I couldn't have that at all.
So I was faced with a choice of making the train a simple show piece, which hurts my pride as a builder, or making a serious, drastic design change that I feared I might have to make.
I decided to go with the latter. My pride as a LEGO builder prevents me from simply accepting a locomotive as a show piece - I consider any train of mine that cannot negotiate standard LEGO track as a complete failure. Much like my T1, the Daylight could not fall into this category.
Changes included:
Raising the entire boiler/cab/firebox assembly one plate to allow the drivers to clear the skirting.
Attaching the rear truck to the firebox via a bogie plate.
Removing the driver and pony truck assembly from the rest of the locomotive.
Reattaching the driver assembly to the locomotive via a bogie plate, articulating the locomotive.
Redesigning the front of the locomotive to be one plate taller, including changing the way the forward orange slope is built.
Removing the 1x1 round tile from the piston design (one of my favorite bits) because the pistons wouldn't clear the forward orange slope otherwise.
She's gone from swinging out some 9-10 studs in curves down to just about 5 studs. This should allow her to completely clear any normal track issues. Unfortunately I have not been able to test her yet, so time will tell if what I've done here will mean anything.
--Tony