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  • Technical
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    •         - Holistic Nature of Locomotives
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Porta Papers Vol 5 – Inrroduction

Porta Papers Vol 5 – Inrroduction

By Chris NewmanMay 12, 2025

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Vol 5 Front Cover

By Chris NewmanMay 12, 2025

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Porta Water Treatment SR 335

By Chris NewmanJul 17, 2017

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Porta Water Treatment SR 335

By Chris NewmanJul 17, 2017

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Porta Water Treatment SR 335

By Chris NewmanJul 3, 2017

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Notes on Porta Treatment from Discussion with Dave Wardale 23rd Oct 2003

By Chris NewmanJul 3, 2017

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Barcelona 1998 – Fundamental Principles of Steam Locomotive Modernization and Their Application to Museum and Tourist Railway Locomotives – L.D. Porta

By Chris NewmanJun 23, 2017

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FCGB 4-8-2 No 1802

By Chris NewmanJun 21, 2017

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McMahon and Newman at Rio Turbio

By Chris NewmanJun 21, 2017

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RFIRT Gradients

By Chris NewmanJun 21, 2017

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Coal Train – Pategonia

By Chris NewmanJun 21, 2017

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Fig.7.1

By Chris NewmanJun 21, 2017

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