Aviation fuel TTA tank wagons

[Pillar]

Hi All,
 

I'm looking for as many details as I can find regarding the green TTA tank wagons used by BP for aviation fuel traffic; the same ones which were the subject of a Model Rail limited edition a few years ago.
 

After several years away from modelling I've decided to try my hand at building something in P4. I hope these wagons will make a good conversion and detailing project, based on the Bachmann RTR model with etched walkways and brake details etc. I have some Brunninghaus springs and etched replacements for the molded Bachmann brake levers, but there seem to be quite a few prototype differences which these parts don't capture.
 

For example, the vehicle here looks more or less similar to what Bachmann have depicted, apart from the springs: https://ukrailwaypics.smugmug.com/UKRailRollingstock/T/TTA-2-axle-tank-wagons/i-8gh5Wb7
 

Whereas the example here seems to have a different arrangement with V hangers: https://ukrailwaypics.smugmug.com/UKRailRollingstock/T/TTA-2-axle-tank-wagons/i-3dtTGvj
 

Does anyone have any more detail shots or info regarding these wagons, or know whether any other detailing products are available? The terminology surrounding brake gear etc. still goes mostly over my head at this point which doesn’t help!

 

Many thanks

 

Liam

Edited September 23, 2018 by Pillar

[Ian Smeeton]

Paul Bartlett's site has plenty of TTAs like this one: https://goo.gl/S3tTvU

 

or Flickr, eg https://www.flickr.com/photos/73574431@N06/33854032951/in/photolist-TzyLxi-8MsjAW-bWUVTd-bWVoFw-QKPGzK-QHk6bC-RZNtj8-bWSNQ5-4GDgtA-bWTo6j-7wedKJ-7pxeae-eLWnD6-JVNjiT-bWUxqJ-iQn8Rk-dcMLdS-594CPn-6KjZtH-26pCot3-21bWHs3-bWTTWy-bWX2eE-Tx7ET7-232JEpA-6VPn4Q-bWUGbN-rx2QGR-7NGdFs-7PLTpW-5q5E8W-VAyy8j-26cQp4k-bWUmqL-uS6vjQ-saFsHA-bSzmgZ-bhG9qB-28mARQV-7NCcsR-76dxZT-7wapvt-bWXoDq-54vgdG-LnmMp-bWTuuE-bWV3E7-7weer1-bWV169-bWTgpm

 

Regards

 

Ian

[hmrspaul]

Hi All,

 

 

Does anyone have any more detail shots or info regarding these wagons, or know whether any other detailing products are available? The terminology surrounding brake gear etc. still goes mostly over my head at this point which doesn’t help!

 

Many thanks

 

Liam

 

Very complex. The earlier 45ton GLW were vacuum braked. These were either scrapped or converted to air brake in the early 1980s. Builds after c1966 were always air braked. Usually they had a conventional leaf spring suspension, but some had independent pedestal suspensions of various types. Separate to the conversion to air brake many had new suspension from the early 1980s - looks like a thin leaf spring by Bruninghaus.

 

There were several builders, although the basic length and position of the filler were the same - so they could all use the same loading facilities - the brake rigging varied between each manufacturer, and each tended to change the arrangements. Similarly ladders and walkway arrangements varied. Of course they carried different commodities so they had different barrel diameters and discharge arrangements. And then there is lagging, and means of heating up some commodities to discharge. And so it goes. https://paulbartlett.zenfolio.com/?q=tta

 

Bartlett, Paul W & Fidczuk, Peter (1992) Tank wagons, part 6. SMBP 45ton GLW tank wagons,       Model Railways vol. 9 (part 4) pp 182 - 188.

Drawing SMBP 45t Class A tank wagon vacuum brake diag. TT026H/J/N  and Airbrake TT088F . 

 

http://www.barrowmoremrg.co.uk/BRBDocuments/BRPOWagons3Issue.pdf

 

DEMU may have published on them, I'm not sure.

 

Paul

Edited September 23, 2018 by hmrspaul