BR Standard Class 2, 2-6-2 tank

Dave Holt
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Joined: Thu May 28, 2009 9:44 pm

BR Standard Class 2, 2-6-2 tank

Postby Dave Holt » Fri Jan 04, 2019 9:20 pm

As part of my layout project, based on the terminus station at Delph, I had a need for locos to pull and push the two coach motor trains which operated the passenger service. In my approximate period [somewhere in the 1950's], these trains were almost exclusively powered by 2-6-2 tank engines. In order of usage, they were of the ex-LMS, Fowler Class 3 [Breadvan], BR Standard Class 2 and, finally, the ex-LMS Ivatt Class 2 [Mickey Mouse] types.

The first type to be started was the BR version, using a DJH kit. The DJH body is their typical mix of etched brass and cast white metal parts and can be built as either the BR or Ivatt design by use of the appropriate alternative parts. Unusually, I started with the body and got on fairly well with the basic construction to reach the state illustrated, plus the boiler unit [used in the later effort], which creates the strength of the body assembly at the front.

IMG_1730.JPG


This is more or less exactly as DJH intended although I did create a recess in the LH side tank top to accommodate the BR brake ejector steam valve, which is not provided for in the kit.

At about this time, I bought a Bachmann Ivatt tank together with a Comet chassis kit for a future build. Naturally, I compared the Bachmann loco with the part built DJH and realised that the DJH body was 2 mm shorter overall and it was apparent that the kit was wrong and that the error appeared to be wholly in the length of the cab. By this time, I had also decided to use a Comet chassis for the Standard and this also was 2 mm longer than the DJH body. As I recall, this was all enough to put me off and the loco was put aside and other projects started, including the Ivatt tank, seen here with the later BR Standard effort.

IMG_1674.JPG


Eventually, I resolved to have another go at the Standard and purchased a new DJH kit. The fold-up etch for the tanks/cab/bunker was cut at the cab opening and a 2 mm wide filler strip fitted such that the overall length was made correct. Strictly, this still isn't right as the error was distributed throughout the cab length, not just at the opening, but it was a result I could live with. Of course, this lengthening meant that parts such as the cab roof, doors and floor no longer fitted, but these could be addressed later, I felt.

The DJH kit is designed with a short chassis, just comprising the coupled wheels and cylinders, with the remainder of the frames at front and back being part of the body assembly. I decided to retain this arrangement in my model and so the Comet frames were cut down to suit. This did result in some issues due to the pony trucks being pivoted on the short chassis but bear against pintles mounted under the body.

The stretched cab was fitted with scratch made doors and floor and a custom etched roof from Rumney Models, who also etched various detailing parts, including sand pipe brackets, tank restraining bars, lubricator drives, lamp irons and fire iron rests. The push-pull gear was a fascinating exercise in blending bits from various sources and lots of bent bits of wire, hopefully looking far more like the real thing than the misshapen offerings in the kit. The following photos show parts under construction or stripped down prior to final assembly and painting.

First, the chassis and keeper arrangements.

IMG_1617.JPG
bare chassis u/s, no keeper


IMG_1619.JPG
keeper


IMG_1610.JPG
chassis u/s, with keeper


IMG_1607.JPG
chassis lhs


Next, we have the valve gear assembly [also showing the two pony trucks]

IMG_1613.JPG
valve gear and trucks


The front and rear trucks look quite different, due to using different types of side control. This also applies to the Ivatt locos, but on them, the swing link truck [seen on the right] was always at the front, whereas, on the BR locos it was always at the back. The trucks were both made from the Brassmasters Ivatt item, the spring control version just being the kit and the swing link item a modified version.

IMG_1614.JPG
trucks


Moving on to the body components, we have the tank/cab/bunker unit which was stretched, as mentioned above.

IMG_1611.JPG
tanks lhs


The boiler unit was kept separate till final assembly but was then permanently fixed to the tank unit.

IMG_1616.JPG
boiler lhs


IMG_1615.JPG
boiler, top/rhs


The various details were built up, including a fairly detailed representation of the vacuum operated push-pull apparatus.

IMG_1638.JPG
raw, lh rear, no roof


IMG_1639.JPG
raw, rh front, no roof


IMG_1666.JPG
raw, lh front


Once the custom etched roof was obtained and curved to shape, it was clipped into place and the loco looked quite complete. The roof is still loose but will be fixed after fitting the loco crew.

IMG_1665.JPG
raw, lhs


IMG_1667.JPG
raw, lh rear


IMG_1669.JPG
raw rhs


The loco was then passed to David Clarke for painting, lining and weathering. The degree of weathering, and in particular, the near obliteration of the lining near the front of the side tanks, is based on the typical state of these locos during their stay at Lees Shed, in Oldham, in the mid 1950's.

Std2T_008.JPG
weathered lhs


Std2T_006.JPG
weathered rhs


Since these last shots were taken [by David Clarke], I have fitted cab window glazing and put coal in the bunker. Crew to paint and fit, cab roof to attach and DCC chip to wire up and it's ready to haul the ex-LNWR coaches which formed the passenger stock on the branch.

Dave.

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Le Corbusier
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Joined: Wed Feb 11, 2015 3:39 pm

Re: BR Standard Class 2, 2-6-2 tank

Postby Le Corbusier » Fri Jan 04, 2019 10:39 pm

Wow :shock: .... just Wow.

I think that's wonderful modelling. Can't comment on any of the specifics .... but I think it looks marvellous. :thumb

Any chance of a video of it running?
Tim Lee

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Tim V
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Joined: Tue Jul 29, 2008 4:40 pm

Re: BR Standard Class 2, 2-6-2 tank

Postby Tim V » Fri Jan 04, 2019 11:45 pm

Dave

Basis of an article for the Snooze there ...
Tim V

Pannier Tank
Posts: 38
Joined: Sun May 02, 2010 1:11 pm

Re: BR Standard Class 2, 2-6-2 tank

Postby Pannier Tank » Sat Jan 05, 2019 6:10 pm

Very nice, reminds me of my Spottings days at Bletchley in the early 60s. We had 84002 & 84004 which used to work the Wolverton to Newport Pagnell (Newport Nobby), Bletchley to Banbury and Bletchley to Bedford Push/Pull Services.
Regards

David

dal-t
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Joined: Mon Jan 11, 2010 8:06 pm

Re: BR Standard Class 2, 2-6-2 tank

Postby dal-t » Sat Jan 05, 2019 6:50 pm

Pannier Tank wrote:Very nice, reminds me of my Spottings days at Bletchley in the early 60s. We had 84002 & 84004 which used to work the Wolverton to Newport Pagnell (Newport Nobby), Bletchley to Banbury and Bletchley to Bedford Push/Pull Services.


Yes, 84004 was the usual stand-in for 41222 on Nobby when the latter was unavailable. She seemed to have a little trouble running down the reverse curve into NP, 84002 even more so, and they never rode quite as sweetly as Ivatt's original. I've often wondered where the stiffness came from, since I assumed the 'chassis' was pretty much identical.
David L-T

Pannier Tank
Posts: 38
Joined: Sun May 02, 2010 1:11 pm

Re: BR Standard Class 2, 2-6-2 tank

Postby Pannier Tank » Sat Jan 05, 2019 7:38 pm

dal-t wrote:Yes, 84004 was the usual stand-in for 41222 on Nobby when the latter was unavailable. She seemed to have a little trouble running down the reverse curve into NP, 84002 even more so, and they never rode quite as sweetly as Ivatt's original. I've often wondered where the stiffness came from, since I assumed the 'chassis' was pretty much identical.
I travelled on the Newport Nobby on the final day hauled by 41222 and then a few weeks later went down the Newport Branch on a Railtour hauled by 42105.
Regards

David

Dave Holt
Posts: 29
Joined: Thu May 28, 2009 9:44 pm

Re: BR Standard Class 2, 2-6-2 tank

Postby Dave Holt » Sun Jan 06, 2019 2:16 pm

Le Corbusier wrote:Wow :shock: .... just Wow.

I think that's wonderful modelling. Can't comment on any of the specifics .... but I think it looks marvellous. :thumb

Any chance of a video of it running?



Tim,
Thanks for your kind comments. I don't have any video but it had a run out at the NLG pre-Christmas meeting, on their circular test track. Hauling/pushing a typical Delph two coach motor train, it circulated satisfactorily for some time. I must say, though, it has one of the noisiest Portescap drives in my entire collection. A sort of whining cement mixer sound! Funnily enough, the Ivatt tank, with the exact same drive arrangement, is far quieter and not at all intrusive. Perhaps it will quieten down with use.
Dave.

tmcsean
Posts: 21
Joined: Fri Jul 25, 2008 3:34 pm

Re: BR Standard Class 2, 2-6-2 tank

Postby tmcsean » Tue Jan 08, 2019 11:43 am

A wonderful evocation of an interesting and largely ignored class of ocomotives. Hard to se how it could be improved - congratulations.

Tony

PeteT
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Joined: Tue Jan 11, 2011 9:53 pm

Re: BR Standard Class 2, 2-6-2 tank

Postby PeteT » Thu Jan 10, 2019 4:08 pm

Hi Dave,

Thanks for taking the time to post about this and the Caprotti 5 - both looking amazing!

Interesting to see that you have replaced the chassis with the Comet option - at first glance an obvious choice, but in my opinion the Comet chassis is let down by the crosshead - and looking at the DJH one it looks pretty good! Did you consider using the DJH one and find it difficult to match with the Comet cylinders/slidebars?


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