Using a back-to-back gauge for your model railway ensures that the wheels on your rolling stock are spaced correctly...
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How do I use a back to back gauge?Read more -
What is a poly-cap?Read moreA poly-cap is a type of plastic cap often used in model-making kits, especially for assembling figurines or model...
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What is Graham Farish?Read moreGraham Farish is a name you’re likely to come across if you're interested in British model railways, especially in...
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When did semaphore signals stop being used in the UK?Read moreSemaphore signals, those distinctive mechanical arms that once graced railway lines across the UK, were largely...
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What is Kato track?Read moreKato track is a popular choice in the world of model railways, known for its quality, ease of use and versatility. If...
What is TPWS grid?
A TPWS (Train Protection & Warning System) grid is an apparatus used on the railway as part of the ATP (Automatic Train Protection) system. Specifically, it is a transmitter placed on the track adjacent to a signal and is activated when the signal shows danger. Should a train pass over the grid at an unsatisfactory speed, the brakes will be automatically applied.
Additional grids are sometimes placed further away from the signal on faster running lines to ensure trains have enough distance to come to a halt should a safe approach speed be breeched.
Models of TPWS grids are available for 00 gauge track and can be found at all good model shops.
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TPWS Grids - pack of 12
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