6023 King Edward II Project
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New part of website showing project by themes:
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The brake system of King Edward 2 follows GWR practice, with a vacuum braking system shared with the train. Vacuum is created by a three cone steam ejector, maintained (to save steam) when the locomotive is moving by a vacuum pump attached to the motion. When the brake is applied and air is let in to apply the brakes, the effect of the pump is maintained by a retaining valve, which diverts the sucking action of the pump to a reservoir, which can be seen as a large red cylinder between the engine frames when the boiler is off. A complication which has pushed costs up, is the enhanced signalling requirement of the modern railway. TPWS was rolled out across the rail network in the UK following the Cullen Inquiry into the Ladbroke Grove train crash. To travel out on the main railway, 6023 must be fitted with a TPWS system and data recorder. Interfacing these modern systems with eighty-year old GWR steam and vacuum controls has been a significant challenge. Here's how we did it. |
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