7mm The Derby Line - Rolling Stock

dibateg

Western Thunderer
So, yes - the backhead - Ragstone to the rescue again. I can never quite find all the backhead bits I need, so the steam brake is a modified Stanier one. The regulator guide is a segment of axle washer. Regulator filed up from scratch etch. I made a handle for the top left valve - a section of 1mm square brass files up and a 1mm hole drilled in the remaining square bit for the shaft. The firebox door lloks high, but the drawings confirm it's position. I didn't quite get to making the 'glass' in the boiler gauges... next time. It's rather cruelly enlarged to twice it's actual size...

All I need is some good weather to spray the body... I think I'm too late for that.
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dibateg

Western Thunderer
I needed a tank loco to replace the Stanier tank, something suitable for the milk train, so an A5 would do.

There used to be an MSC kit and one by Northampton Models? Against my better judgment an Ace A5 kit arrived in the post. It met expectations... Roughly packed, bent, inaccurate fingerprinted etchings.
As in the 4mm scale Craftsman kit, it perpetuates the 8' wide bunker from the crap Skinley drawing. Did no one ever look at a photo of the prototype after test building the kit and notice something wrong?
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I'm in half a mind to send it back.
 

Ian@StEnochs

Western Thunderer
That is one very big assumption I fear Tony!!

Good luck with this - I am looking forward to hearing how you get through it. Sometimes is is just quicker and easier to fire up the CAD and get your own etches done and at least you could do them in nickel-silver!

Best Wishes,
Howard

Or just fret them out of virgin nickel silver and you can use the correct thickness for each individual part!

Ian,
who is just taking a lunch break after having cut the frames and a fair number of body parts for one of the 12 Apostles this morning.
 

Ian@StEnochs

Western Thunderer
"12 Apostles"
Please enlighten ignorant Englishman living in Wales

Sorry. Hugh Smellie’s first passenger locomotive when he returned to the G&SWR from the M&C. A 2-4-0 to fit the turntables at Stranraer and Girvan, there were 12 so the class got the nickname ‘Apostles’. All built in house at Kilmarnock and the last one went for scrap in 1923.

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dibateg

Western Thunderer
I put in the layout thread - lets try again...

So why do some A5's have a rivetted panel in the bunker back and others not? I thopught it might be to do with oil burning, but the numbers don't correspond to the list in the green book.
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Dave Holt

Western Thunderer
Perhaps the rivets were attaching internal stiffening ribs inside the bunker? Is it possible that the other locos had flush. countersunk rivets that didn't show compared with the snap-head type seen in the photo? It wasn't that uncommon for different works or different batches of the same design to have different rivet types.
Dave.
 

Yorkshire Dave

Western Thunderer
So why do some A5's have a rivetted panel in the bunker back and others not? I thopught it might be to do with oil burning, but the numbers don't correspond to the list in the green book.

Given they were built in five batches. 1911, 1912, 1917, 1923 and 1925-6, I first thought this might be a batch difference. Alas not so after trawling t'interweb for the few photos of GCR N9 (LNER A5) running bunker first as this patch appears across the batches.

As @Dave Holt suggests these are repair patches. I came across this photo of 69804 at Aylesbury posted by @david bigcheeseplant on another forum. Not only does it show the rear bunker repair but also a repair patch on the top half of the bunker side.

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