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The British Railways Standard Class 4 tank is a class of steam locomotive, one of the BR standard classes built during the 1950s. They were used primarily on commuter and outer suburban services. They were capable of reaching speeds of 75 mph (121 km/h). [1]
For example, to fit the new L1 universal loading gauge the cylinders were reduced in diameter, necessitating an increase in boiler pressure, etc. Aesthetically at least, the changes combined to produce a much more handsome locomotive than the relatively workaday appearance of the LMS engines.
- 225 lb/sq.in.
- 25,100 lb.
- 18in. x 28in.
- 2-6-4
- The 4-6-0s
- The 2-6-0s
- The 2-6-4S
- Decline and Withdrawal
- Preservation
The main purpose of the class was to be a fraction smaller version of the BR Standard Class 5s and other power classification engines under BR ownership. Being smaller in size allowed lower axle weight, increasing route availability to work over routes and lines where bigger engines couldn’t due to weight. By design, the Class 4 4-6-0 essentially B...
Doncaster Works’ drawing office had the task of designing the 2-6-0 Standard 4s, and also built 25 of the 115 total engines constructed. The designed followed closely to that of the LMS Ivatt Class 4s (More information on these can be found here) but sharing the same exterior appearance as and features of the other Standard Classes. Like the Ivatt ...
Like both tender types, the Standard 4 Tanks were influenced by existing LMS designs, such as the Fairburn 2-6-4 Tanks. The design of both the LMS and BR Tanks was very similar, with only a couple of noteworthy changes. These were reshaped cab and general lowering height to meet loading gauge requirements across BR and smaller cylinder diameter & i...
The BR Standard 4s survived right up until the last years on BR steam. Each of the three types played a vital role in the areas they work. This lead to a late start in withdrawal compared to other classes, 1964 seeing the first groups of engines being scrapped. Some engines were transferred to another region due to electrification, particularly in ...
4-6-0s
Six engines of the class have survived preservation, with five of these being restored to running order. 1. 75014 “Braveheart”– Restored to running order in 1994 a private group, 75014 has seen mainline action in the 90s and 00s, before being withdrawn for an extensive overhaul in 2004. Returning back to steam on the Dartmouth Steam Railway in late 2016 carrying BR Lined Black with Early Crest livery. Boiler ticket expires in 2026. 2. 75027– Purchased straight from BR, 75027 started hauling t...
2-6-0s
Only four of the 2-6-0s have survived into preservation, with three being restored so far. 1. 76017– Operational and based on the Mid Hants Railway, 76017 returned to traffic in 2016 following an overhaul. This was the first time the engine had run in two decades. BR Lined Black with Early Crest is the engine’s current livery. 2. 76077– Major components have moved this year to Loughborough based firm to under restoration. Was previously stored at the Gloucestershire and Warwickshire Steam Rai...
They had smaller cylinders and higher pressure boilers, were more economical in operation and were popular with footplate crews for their better running and improved cab facilities. Classified as 4MT on the Eastern, Midland, and Scottish Regions, their Southern classification was 4P/4F.
Standard Class 4MT 2-6-4T tank engine. These new two cylinder tank engines were based on the Fairburn 2-6-4T design of 1945 with modifications, which in turn had been based on the earlier LMS Stanier and Fowler 2-6-4T designs.
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The British Rail Standard Class 4 Tank is a class of 2-6-4T steam locomotive, one of the BR standard classes built during the 1950s. They were used primarily on commuter and outer suburban services. They were capable of reaching speeds of 75 mph.
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The British Railways Standard Class 4 tank is a class of steam locomotive, one of the BR standard classes built during the 1950s. They were used primarily on commuter and outer suburban services.
