Over the years, London Underground has acquired various types of engineering stock to help with the construction of new lines and maintenance of existing lines. Some of these wagons were inherited from its predecessors, many were built new and some were acquired second-hand from the main-line railways. Several types of specialist wagons have been used.

Rail Grinders

With track works everywhere are facing continued challenges of maintaining track in shortened work blocks and with limited resources. 

An effective rail grinding program is a key component for the london tube  maintenance plan.   rail grinding, extended rail life, Fuel savings, reduced surfacing cycles, extended track component life, increased axle loads, Increased train speeds and Improved ride quality and passenger comfort

 

 Here’s my first  version of a Plasser and Theurer Tamper machine used by London Underground.
This tamper machine is very different to the normal size used by Network Rail as this one has to work in tunnels.
A Tamper is a very clever bit of kit. It’s used to sort out the track by straightening, putting in cants, adjusting the height, pretty much anything to ensure a nice smooth ride for trains.