WSnook37025
Member
- Joined
- 13 Oct 2010
- Messages
- 43
National Wagon Preservation Group
Important Announcement
It is with the greatest pleasure that we announce the acquisition of TEA Bogie Tank 87867
Built by Chas Roberts in 1972, the wagon served its life admirably moving Crude Oil across the national network. The wagon was extant from the network for almost ten years inside the refinery and used to move various gases and fuels around the facility, before finally ending up as a Bitumen slurry tank.
This is the first 102 ton registered Bogie Tank wagon in preservation. The intention is to cosmetically restore the wagon to an excellent condition and, over time, get the tank purged. The wagon has a home in secure storage until a permanent home is confirmed. We will continue to fundraise in order to allow us to find a more permanent home and follow through with our promise to have the wagon professionally degassed.
In 1966 the prototype for a 90 ton frameless bogie tank appeared, in Shell BP Class A livery. This proved a success and the trials coincided with an increase in permitted axle loading to allow 100 ton GLW bogie tankers, by 1968 several firms were operating fleets of 100 ton bogie tanks including wagon hire firms such as BRT (who rented them out to oil companies, adding the oil company logo to the right hand end of the tank). The prototype bogie gas tanker was built in 1967 for Esso, by which time the livery was a white tank with the horizontal orange band, I believe BP subsequently also operated gas tanks of this type.
One advantage of the frameless bogie tank wagon is that the tank itself can be made larger in the centre, sagging downwards so as not to foul the loading gauge, these tanks are called 'oblate' tanks. There is a limit to how long a tank wagon can be, so as not to foul stock on adjacent tracks on curves, and of course the height and width of the tank are similarly constrained, so the oblate tanks are useful when carrying lighter liquids. As an example the standard bogie Liquid Petroleum Gas tanker on British Railways has a gross loaded weight of ninety tons, the same basic design when carrying oil has a GLW of 100 tons. By the early 1980's companies such as Procor had introduced frameless oblate tanks TOPS coded TEA these have a gross loaded weight of 102 tons and are able to carry close to 80 tons of cargo. Oblate tanks cost more to build so the standard cylindrical tanks remain the most common in service.
Tanks of this size had not appeared sooner due to the fact they were not originally popular with the oil companies as they had problems with the sharp curves in the refineries. This example and her sister builds revolutionised liquid movements by rail in the fact that the train lengths were the same length, but reduced the amount of wagons needed per train, meaning that the load weight of the train was substantially increased.
A photo of the wagon in 1985 in ex-works condition: http://paulbartlett.zenfolio.com/smbpbogieclassa/h1a335c3f#h1a335c3f
The same as above, by another photographer, slightly different angle: https://www.flickr.com/photos/hmillington/2035780394/in/photolist-46TUzY
Here is the wagon in its current disposition: https://bestieboy.smugmug.com/Trains/Miscellaneous-Wagons/i-GrRXhmw/A
Important Announcement
It is with the greatest pleasure that we announce the acquisition of TEA Bogie Tank 87867
Built by Chas Roberts in 1972, the wagon served its life admirably moving Crude Oil across the national network. The wagon was extant from the network for almost ten years inside the refinery and used to move various gases and fuels around the facility, before finally ending up as a Bitumen slurry tank.
This is the first 102 ton registered Bogie Tank wagon in preservation. The intention is to cosmetically restore the wagon to an excellent condition and, over time, get the tank purged. The wagon has a home in secure storage until a permanent home is confirmed. We will continue to fundraise in order to allow us to find a more permanent home and follow through with our promise to have the wagon professionally degassed.
In 1966 the prototype for a 90 ton frameless bogie tank appeared, in Shell BP Class A livery. This proved a success and the trials coincided with an increase in permitted axle loading to allow 100 ton GLW bogie tankers, by 1968 several firms were operating fleets of 100 ton bogie tanks including wagon hire firms such as BRT (who rented them out to oil companies, adding the oil company logo to the right hand end of the tank). The prototype bogie gas tanker was built in 1967 for Esso, by which time the livery was a white tank with the horizontal orange band, I believe BP subsequently also operated gas tanks of this type.
One advantage of the frameless bogie tank wagon is that the tank itself can be made larger in the centre, sagging downwards so as not to foul the loading gauge, these tanks are called 'oblate' tanks. There is a limit to how long a tank wagon can be, so as not to foul stock on adjacent tracks on curves, and of course the height and width of the tank are similarly constrained, so the oblate tanks are useful when carrying lighter liquids. As an example the standard bogie Liquid Petroleum Gas tanker on British Railways has a gross loaded weight of ninety tons, the same basic design when carrying oil has a GLW of 100 tons. By the early 1980's companies such as Procor had introduced frameless oblate tanks TOPS coded TEA these have a gross loaded weight of 102 tons and are able to carry close to 80 tons of cargo. Oblate tanks cost more to build so the standard cylindrical tanks remain the most common in service.
Tanks of this size had not appeared sooner due to the fact they were not originally popular with the oil companies as they had problems with the sharp curves in the refineries. This example and her sister builds revolutionised liquid movements by rail in the fact that the train lengths were the same length, but reduced the amount of wagons needed per train, meaning that the load weight of the train was substantially increased.
A photo of the wagon in 1985 in ex-works condition: http://paulbartlett.zenfolio.com/smbpbogieclassa/h1a335c3f#h1a335c3f
The same as above, by another photographer, slightly different angle: https://www.flickr.com/photos/hmillington/2035780394/in/photolist-46TUzY
Here is the wagon in its current disposition: https://bestieboy.smugmug.com/Trains/Miscellaneous-Wagons/i-GrRXhmw/A
