Roger Allen completed his engineering apprenticeship with General Electric Co. and spent the next 10 years involved with turbine design. A further 15 years was spent as mechanical project engineer involved with rotating machinery design and project supervision for major international power & process contractors. This involved both vibration analysis and tribological studies of high speed machinery. Until 1997, Roger worked for a division of Thames Water involved in the failure analysis and subsequent re-design of mechanical components and systems.
Roger has undertaken work for Neale Consulting Engineers as an expert witness investigating failure of gears, pumps and cables.
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