Category Archives: Books

An Introduction to Large-Lap Valves

An Introduction to Large-Lap Valves & Their Use on the LMS Author Adrian Tester.  Published by Crimson Lake. For many years locomotive enthusiasts particularly those who favour the LMS have been led to believe the introduction of large-lap valves (long travel valves) represented the zenith of steam locomotive design. However this was a gross simplification […]

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5AT Feasibility Study

The “Feasibility Study regarding the formation of a Steam Locomotive Development Company to produce advanced technology Second Generation Steam (SGS) Locomotives” was issued in May 2010 some nine years after the establishment of the 5AT Project.  It it represented the final throw of the dice by the project team in its efforts to generate interest […]

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