Number 12 was good for 15 loaded hoppers down the mountain from Robertsdale. The steep climb is downhill between 2 - 2.5%, but there are some stretches of uphill (around 1%) at Jordan and McMullen’s summits. Nos. 14 and 15 could pull 18 loaded hoppers, while the big mikes could do 22.
I don’t know what the Accucraft mike will pull on a grade. I know mine does 10 cars without much trouble at all on the (relatively) flat stem track at the Colorado RR museum.
Randy, do you have the .pdf versions of the EBT right-of-way maps? They’re here:
http://www.railsandtrails.com/EBT/index.html
Definitely worth the download if you haven’t yet. That’ll help you with your track planning if you’re trying to replicate what was there on the prototype. (It looks like you’ve got Robertsdale oriented backwards. The wye is on the north end of town.)
Kimmel siding is 1357’ long, and Coles is 1201’. A 22-car train with locomotive would be on the order of 700’, so there was plenty of room to spare on those sidings. That scales out to 60 - 70’ per siding. If you limit things to just long enough to pass the trains, you’re still at 35’ for each siding.
What I’m not seeing is the capacity at Robertsdale for a 22-car train. I haven’t seen a drawing for your version of Mt. Union, but if you’re looking to run trains that long, you’ll need that capacity at both ends in addition to points along the middle to pass trains.
If it were me, I’d compress the train length a bit–maybe 10 - 12 cars plus a caboose. That lessens your need for long passing sidings to pass trains (about 25’ total, which is still plenty long), but the trains are still long enough to give you the “look” of a proper EBT coal drag. That, and you’re talking about a whole lot of hoppers if you want to have a meet betwen a loaded and empty hopper train. It’s a lot more reasonable to get a fleet of 20 - 30 hoppers than it is 50 - 60, especially given that the Accucraft cars are out of production.
The other thing to think about is in terms of how you want to operate the railroad. The coal drags are great, but rather boring from an operational standpoint. They travel in one long string from point A to point B, with no switching inbetween. I’d concentrate a bit less on that aspect in terms of being totally accurate with regard to train length, and instead focus on the non-coal revenue streams (timber, agricultural, etc) and the sidings along the way which supported those industries.
I’d suggest getting in touch with Pete Clarke, the FEBT membership guy. He models in HOn3, and has regular operating sessions on his EBT. I’ve been to his operating sessions, and they’re a pretty good blend of coal drags, switching, and passenger runs. If I were contemplating a railroad such as you’re contemplating, I’d look to that kind of operational scheme as a foundation.
Later,
K