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CR Grampian corridor stock , part 1

Dave John


Over the last couple of years I have made a fair number of wagons, still not enough but I can now run fairly representative goods services. However folk may have noticed that the passengers are poorly served by just two rakes of coaches, and both of those are a bit shorter than they ought to be. So time for a bit of coachbuilding.


The Grampian Corridor Stock, built 1905 was really the CRs finest. Large proportions, very comfortable with great attention to ride and insulation, electrically lit and with corridor connections. A successful design, and as more were built their use was extended to other parts of the CR network. I think that allows me to run a rake of them, and anyway I fancy a go at building some.


Caley coaches do kits for several diagrams. I bought these a few years back, so now is the time to get on with it.


Ok, so bogies first. These are in four sections folded up and fitted with some very nice brass castings.






The three parts of the frames sit on tabs on a sub frame assembly like so. The tabs fold back in line when it is painted and the wheels are in. You could solder it all up solid, but the idea is to allow compensation with the two halves rocking on the longitudinal axis, and the other part rocking laterally .







The assembly looks like this from above. Press studs for bogie mounting are provided in the kit, but I’m probably going for a more conventional nut and bolt arrangement.







Here is the first assembled with a coat of paint. It runs very smoothly and the compensation seems to work a treat.







Not the best of photos, but it gives an idea. Right, so off to build the rest.

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Looks like a clever yet manageable rocking arrangement. I haven't seen brass castings for bogie sides before, but then I'm not experienced with such things. I suppose they must add some nice weight that improves running?

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Hi Mikkel, Caley coaches kits are always brass castings. I don't think they are any heavier than whitemetal ones, but they are a lot stronger and allow the use of 60/40 solder so the whole thing is much more solid as an assembly. 

Downside is that they do need more time to fettle. 

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Hi Dave


I will be embarking on one of these before too long too.  


However, I decided to decline the use of the compensated bogies provided in the kit.  I have never been a fan of the split bogies that Alistair Wright designed.  Instead I have designed a sprung bogie based on my standard Fox bogie.  You can see some pictures of the artwork in my 8 June post on the Scalefour Society forum https://www.scalefour.org/forum/viewtopic.php?f=91&t=1345&start=275#p76129


It will be interesting to see how the two solutions compare!




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Agreed PT , I'm not entirely sure about them myself, though the first two seem to ride well enough. A flick with the finger and they run all the way round the layout, but I think I might make up a dummy coach chassis and try them with that. It is certainly true that they are a lot of work. and I am a bit concerned about lateral stability. Nae wobblyness allowed, I can't have folk spilling their tea. 


The eighth is on the bench atm, so hopefully some running tests at the weekend. 

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