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LMS Fowler 2-6-2T
70 examples of the class were built. They were intended as a smaller version of the successful 2-6-4t already in use, but they were underpowerded and not popular. Some were fitted with condensing apparatus for use in london tunnels, and others were fitted for pushpull duties.
After WW2 external steam pipes were fitted to improve steaming, and new Stanier type chimney, but this did not improve things, as main problem was the undepowered boiler.