The fkavour of War Department railways: a 16mm model of a Wrightscale WD Baldwin 4-6-0 pulls two WD covered goods wagons, built by Jim Hawkesworth on Wrightscale bogies |
Here, as an author in the same field, I confess a bit of
envy. When I approached the Imperial
War Museum
their rates for reproduction were very pricey. For my own book, Tracks To
The Trenches, I calculated that I could have spent at least £10,000 for the
rights to reproduce the required illustrations. A self-respecting history of
this kind would need at least double that number of illustrations thus an up-front investment of anything up to £20,000 before thinking of paying a printer or distribution costs. These high charges might explain why there was never
a reprint of the excellent Light Railways of the First World War by WJK
Davies.
At this point, once again, thanks to those who shared with
me their archives and charged far more modestly. Without them, the book ‘Colonel Péchot: Tracks
To The Trenches’ would not have been possible and the English language
story of Colonel Péchot and the birth of
French, German and British military narrow gauge would not have been told.
Prosper Péchot 1907 with Légion d'Honneur. Photo courtesy Raymond Péchot |
In a few words, Colonel Péchot: Tracks To The Trenches
explains how Prosper Péchot made trench transport possible.
Without his ideas, portable narrow gauge railways would have remained light
devices, suitable for agriculture or quarries.
It could be argued that the basic ideas already existed. The
point is – they were in existence but never used together. It took the genius of
Péchot to put together ideas from various sources. The 2’ gauge Festiniog
railway, the portable railways of the Decauville Company, Fowler agricultural
machines, the Darjeeling-Himalaya railway and the timber extraction railways of
the USA were already in operation, but totally independently.
Péchot was the first to create a prefabricated 60cm gauge
railway system which could be quickly set out in the field and then reliably
transport a vast tonnage of freight. From Decauville he took the concept of
portable-prefabricated rail and at the Decauville factory he devised valuable improvements.
The Festiniog Railway showed that vast tonnages could be transported by narrow
gauge. The Fowler company, among others, demonstrated tough little steam
engines which could work in the field.
Péchot added his own ideas. Using his mathematical skills
garnered as a graduate of the top Ecole Polytechnique and his experience as an
Artillery officer, he calculated the merits of 60cm gauge. He needed a sweet
spot. The broader the gauge, the smoother and more reliable running became; the
narrower, the more expeditiously the railway could be laid. 60cm provided the
best compromise. Between 1882 and 1888, he put his life and career on hold
trying to persuade the French Army to lay in a stock of portable railways. He
met with partial success in 1888 and more than 500 km (300 miles) of artillerie
88/ Péchot system railways were installed around the frontier fortresses of France.
Péchot-Bourdon locomotive on the military narrow gauge network serving the Belfort frontier defences. Picture courtesy Raymond Duton |
Before Péchot, the Prussian army had been experimenting with
70 and 75cm gauge. Very soon after reports of French experiments appeared in
French newspapers, the Prussians and soon the whole German Army went over to their
version of 60cm gauge, known as Heeresfelbahn. Paul Decauville, mentioned
above, recalled a letter from the German ambassador expressing great interest
in the new portable railways. Ironically, they grasped Péchot’s ideas better
than the French generals. By 1914, they had a thousand kilometres of track in
readiness for attack.
The British, until they saw French field railways, had been
using 2’6” (75cm.) Although they - and the USA - used Imperial measurements as
a rule, they, too in their own good time, adopted the French metric standard of
60cm.
16mm Wrightscale model of a Péchot bogie wagon |
The same applies to the rolling stock. Until then, whether
Decauville or Welsh, narrow gauge wagons were sturdy little four-wheelers.
Péchot insisted on bogie wagons. The body could be longer and thus have
superior capacity. The bogies enabled them to take narrow gauge, roughly laid
track far better. Braking for every wagon came as standard. They could even be
operated by brake-wheel – or by a key at track level.
The Péchot system of compensated springing was a world
leader. Unfortunately, between 1888 and 1914, the French army lost its early
technological lead. In 1914, what material that was left was ageing; Péchot
bogie wagons were still going strong but there were very few of them.
In 1914, the Péchot system acquired a powerful advocate. As
the German Army thrust westwards, General Gallieni was charged with the defence
of Paris. The
capital of France
was ringed by fortifications, but there was no way to roll supplies up from the
railway stations. He realised the potential of a light railway system that
could rapidly deliver military supplies.
Though retired, Péchot returned to make a contribution to the defence of Paris and, once more, the
value of artillerie 88 was demonstrated.
General Gallieni, remembered as the hero of 1914 as his efforts stopped the German advance. Photo copyright MD Wright |
Paris
was soon out of danger to be replaced by the realities of trench warfare. New
rail, rolling stock and locomotives were needed, in great volume. The
Decauville company produced a relatively light design which could be rolled out
by the thousand, the 'Decauville 15'.
For all its merits, the WDLR Companion provides a
blinkered view. The enormous contribution that French design made to the
British War Department Light Railways is only mentioned briefly in the text. A
railway stores depot in Andruiq (page 9) included projects such as ‘manufacture
of standard gauge, metre gauge and 60 cm’ in 1915. In early 1916, the
British took over a French sector (also page 9). ‘The takeover included a 60cm French
military railway.’ The book admits that
orders for 60cm gauge material flowed home from February 1916 onwards. (pp
9-10)
So far, the push towards 60cm field railways came from
relatively junior officers.
General Haig, fairly recently appointed British CinC, was open to suggestions; the Battle of the Somme was not going well. Photo copyright MD Wright |
It was not until the battle of the Somme
was under way that ‘Top Brass’ got involved. On September 11th (WDLR
Companion pp 13-14) Haig recorded a meeting which included L-G (Lloyd George),
M. Robert (the French Minister for Muitions) and Sir Eric Geddes. ‘The
necessity for 60 centimetre railways was quickly shown’
Here, hey, a revolution in British thinking has happened!
The compilers of WDLR Companion are well aware of the French
influence. They had access to the Imperial War Museum Archive where there are
various photos of French field railways, for example Q 4111 (Decauville wagons
on the ex French system)
In 1916, Sir Eric Geddes was apointed Director of Light Railways and was in at the formation of the WDLR. Photo copyright MD Wright |
I feel particularly disappointed. Roy Link and the Wrights
have been friends for many years. He knows about the huge contributions that
Péchot made to military narrow gauge railways.
In the drawings section of WDLR Companion, there are two or three plans featuring
Decauville-15 bogies and a Péchot bogie. For these drawings, we can thank Peter
Foley. He has clearly examined surviving
examples, checking to see where they have been modified during their long
service life.
They are attractive drawings, and we hope that they will inspire
interest in French military narrow gauge. The reader can see from pp 166-7 the
differences between the heavily engineered Péchot bogies and the relatively
light Decauville 15 equivalent. We should like to comment on an outstanding
feature. This was one of the innovations that made the Péchot design
revolutionary.
A Péchot bogie which retains some original features. Photo courtesy Jacques Pradayrol |
The chequer plate shown (page 166) without comment on the top
surface of the Péchot bogie was one of the world-leading introductions produced
by the Péchot team. Remember – the original designs date from the 1880s.The original drawings housed at Chatellereult and a bogie in its original state indicate this early use of non-slip surfacing. As can
be seen from the drawings of WD wagons and the Decauville ones, their top
surfaces did not have this thoughtful safety material.
In this enlargement of the photo shown above, you can just see the non-slip surfacing. |
It may be a little pernickety, but we’d like to suggest that
the simple diamond pattern shown in the drawing is slightly misleading. Because of the technology, the
diamond pattern would have been heavily ridged. This could have been indicated on the drawing if traced in double lines. It would have been a simple
matter for Peter Foley to haveindicated the way that they would have
appeared in the 19th century.
This is a small quibble. We just wish that, In all, given Mr Foley’s work, it would have been simple for
the text to have pointed out more of the history of the War Department Light Railways.