Welcome to the

Anatole Mallet     "Archeology is honored in every domain, except for building processes and arts; We know more details about the Egyptian and Babylonian civilizations that about the origins of our industries. Universities chairs exists for each History segment except for History of technical applications of sciences."

Anatole Mallet, introduction of his book "L'évolution pratique de la machine à vapeur" published in 1908.

April 11, 2021, back again

No?! Yes...

Last news

The site had been hacked a few times in the last years and was completely unuseable since a while or at least very painfull to visit

I'm thus currently checking/updating/correcting each file and link in these pages.


I sincerely hope you'll enjoy and have a great time visiting this site

Compound locomotives, How & why

Brief historical information on the multiple expansion in general

Condensed technical history of French and foreign pre-Chapelon compound locomotive designers whose work led to the "du Bousquet-de Glehn" French standard arrangement for compound locomotives


Gaston du Bousquet

André Chapelon

Anatole Mallet

Featured locomotives

Illustrated index of the French locomotives introduced - acces to galleries, technical data, historcal notices, ...

Technical data index

Index of technical drawings and graphs, indicator diagrams, ...

Builders of locomotives and related industries




Short history and description of railroad companies in France

Typically French accessories visible on pics, for those who are curious

Audio files

Downloadable documents

Images of depots, sheds, crews, workshops...

A few words about French numbering systems

Glossary of french acronyms used

Live steam models of french locomotives


Steam locomotive basics for beginners and children


Favourites links about steam:



Other links of interest to me...

along  a 
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All written material copyright © Thierry Stora 1997 - 2011. All rights reserved. Reproduction, translation, total or partial on any media absolutely forbidden without preliminary permission and agreement.

First creation: July 1st., 1998
Last revision: January th., 2011

All the pictures, drawings and sound recordings contained on this site are believed to belong to the public domain (mainly from the archives of involved railroad companies), or to History of sciences and technologies. But if I stole anything unintentionally, I will remove the concerned material from these pages as soon as I am informed about it.

This site is and will be under construction for a long time, this is the kind of work than you never can complete...
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All participation, contribution , comments, criticism or help to keep this site alive most welcome! ...I know I am a dreamer

Visitors since 07/24/98

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