Improving the Oxford Rail North British Jubilee Wagon
As I mentioned in my previous post the Oxford Rail Jubilee wagon is a pretty good rendition of the original but it does have a few small issues and is fundamentally the wrong colour! Actually, these proved very simple to fix and the conversion to P4 was relatively painless; so within a couple of hours you can have a good rendition of this typically Scottish wagon.
First off was the conversion to P4 which is not possible to do with the existing underframe as it is too narrow. In an approach that I have not seen before, Oxford Models have created an underframe that slips between the solebars. Even better, this is not secured with glue and merely popping out the buffer shanks from their housings allows this to drop out. Neither the buffers nor the brake gear are secured with glue either and I elected to temporarily detach these from the model throughout to prevent any damage to them. Bill Bedford pre 1907 RCH sprung W irons were then used but it was necessary to scrape back about ½mm of the inside of each solebar to get these in. Checking the ride height against the buffer height gauge I found that the right height was achieved without the need for any packing.
Although the axleboxes that are provided as part of the model are a bit crude, I did not have any better ones available (although 51L do provide them) so sought to retain these. There is a fair amount of cutting required to remove the remains of the plastic W iron and open up the rear of the axle box to take even a waisted pin-point bearing. Definitely do this with a finger drill and not a powered one as you need to remove as much plastic as you can short of actually going through it. Cutting these rebates was the slowest part of the whole task.
The end stanchions were separate pieces and popped off without bother but the planking joints did not run behind them continuously. Therefore, whilst it was easy to reattach the stanchions with glue, I had to score the missing plank joints in first. The buffer shanks are a tad too long, more appropriate for NBR fitted wagons than unfitted but these were easy to deal with. The metal heads pop out easily and then a few strokes with a file takes off about ½mm to reduce the length. The fixing hole needs to be deepened slightly and then the head can be resecured with a dab of glue.
The missing ironwork to the solebar was from a left over etch; Mainly Trains do alternatives. I found that the bolt heads to the straps either side of the door had some of its bolts in impossible locations (in the joint between planks) and I therefore shaved these off prior to applying replacements with Archer transfer rivets. This is the first time I have actually used these and they are really easy to use; much quicker than any other method. The strapping to the inside of the wagon was missing, so this was added with microstrip and more Archer’s rivets. The hinge rings to the end door should be almost a full circle so these were replaced with pieces of bent wire to conclude the physical modifications.
The model comes fitted with scotch fulcrum brakes to both sides which is correct for some vehicles but I cut away one side as I wished to represent the more common variant that had these only to one side. The actual fulcrum and brake block detach from the underframe without difficulty and I found that I could reuse it, after first mounting them on a piece of plasticard secured to the underside of the floor. I did, however, change the brake lever which I thought to be a bit clunky with an etched replacement and added a fair amount of lead as the model is very light. I also attached a piece of scrap brass to the underside – as seen below – as a temporary means to hold the wagon whilst it is painted.
I chose to lightly abrade the surface of the existing lettering with a fine wet & dry paper as I was concerned that they might leave an impression through the new paint. Thereafter I painted them all over with Tamiya Paints, German Grey, picking out the ironwork to the solebar and below with black. The lettering was from PC Transfers sheet 20 but it will be partially lost below weathering; when I get it to this stage!
Here we can see the benefit of the brass strip to hold the model with during painting and weathering.
Posted on December 18, 2016, in Workbench (stock) and tagged 4mm, Model Railway, NBR, North British Railway, Oxford Rail, p4. Bookmark the permalink. 7 Comments.
I’ve just been cutting slashing and milling away without success, trying to do exactly the same thing; trust me to try and do it the hard way! 😂
Trying to cut into the chassis block?
If so, then I agree – you are doing i the hard way. Pop the buffers out, throw the chassis away, it is much much easier!
I have. And you are correct! 😂
I think a little time assessing the breakdown of a new model might prove more wise in future! Anyway, lesson learned and what you end up with is akin to what you find with the Caley Association’s True Line range of models. Your model has been transformed though it’s a pity they didn’t liaise with the NBRSG when researching the grey livery. Printing is very nice mind!
It is very challenging to understand how the manufacturer intended the model to come together and abundantly clear once you know!
If they got the grey right, few of us would change the model – myself included.
But for the colour point, this is a top notch offering; so my hope is with a tad of development this unmatchable product.
Really. Can any one else spot a useable Pre-group rtr model for the scottish centric market that is even close???
Never mind the “impossible” rivets (nuts surely?) either side of the doors; what about the columns of nuts nearest the corners at the fixed end of the wagon, on both sides and fixed end faces?! What are these meant to be? Coach screws driven into end grain? And since they are in line with each other horizontally on side and end, passing through each other too?! A combination of flat pack furniture assembly techniques and (if the “screws” were all of the same diameter) physical impossibility.
I think it was MRJ that featured a superb series of articles many years ago on how prototype wagons were constructed but even if the designer of this model hadn’t read those it is quite obvious just by looking at the diagrams in Peter Tatlow’s LNER wagons book, let alone a full size G.A. drawing, that these nuts should be inboard of the thickness of the adjacent boards; i.e. the raised pips represent bolts passing through the entire thickness of the side or end as appropriate, with both ends exposed.
I think as a consequence the width of the faces of these corner plates has also turned out a bit short.
Obviously this could all be fixed with further application of your technique for remedying the alignment of the doorside nuts and the lack of interior strapping; but it all adds up to more butchery and wondering whether at the end one will have saved much time over building from scratch in plasticard. Also nearly crying with frustration that a manufacturer should not check these things (pre production samples to line societies, perhaps?) and introduce an error which is not just a minor dimensional one but is at variance with the basic structure of the prototype. A bit like someone putting a domestic doorknob on the side of a locomotive smokebox door opposite the hinges instead of the correct centre handles.
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