How do you run 15+ locos on your layout Bill?
My current loco roster is around 25, so I will end up with around 43 when all the ones pending are received.
Like A6ET said (above), it is not my intention to have all locos running at the same time.......although my NCE system should have the grunt to do so if I wanted to AND if I could physically manage the workload involved with running that many locos.
My shed is 40' x 25' (12m x 7.5m for the youngsters on here) and covers 2 levels plus another lower-level branch terminus. I think there's about 800 feet of track from memory. I like to run several triple headers at a time. I love watching the layout updates of David Head.....his layout is what I would like mine to be like, but mine is nowhere near as large from I can tell from his videos.
I "need" a shunter in each yard....the only branch line locos I currently have are 2x 47 and 1x 49. The 48s will be used for both branch line work (possibly in quad format) as well as shunting duties.
I don't have any mates to assist me operate my layout, so I usually end up having one train running slowly in one direction semi-continuously (ie: I will monitor it and occasionally alter what it is doing), whilst I faff-about shunting and forming-up/breaking-up trains on some particular part of the layout.
However, what generally happens is that I will find some "urgent" per-way work that needs doing and will suspend all train operations whilst this job is attended to. Sometimes this results in a major re-build of a section of the layout when my brain twigs to the fact that there is a better way of achieving a desired result. Even today, thinking about the pending arrival of the 48s, I've worked out that I need to install a short siding near my wheat terminus, where I can store a 48 for shunting these sidings.....otherwise I'd have to bring one down from a neighbouring yard area.
I have a couple of loco areas, the larger of which has a 90 foot turntable with 17 roads radiating (plus the 4 approach/departure roads). Some of these roads are long enough to store 2 locos and 3 of them are available for my 3 Garratts.....which have to go straight across the t/table as they are too long to be turned on it. The other t/table is only 60 foot long and is at a branch terminus. There are 2 "reverse loops", one of which is a triangle....so if I need to turn a Garratt I can do that without needing a turntable.
I have a vivid imagination....necessary as there is no scenery except for a scratchbuilt goods shed and a plastic suburban station building.....neither of which is fixed in a position.
Anyway, I've run-off at the mouth again just trying to answer your question about why I need so many locos.