Inauguration of the First Section of the Langbian Cog Railway, 1927

A passenger train on the Langbian Cog Railway

This article was published previously in Saigoneer

The Langbian Cog Railway was opened in stages between 1919 and 1932. The first 40km of the line from Tourcham (Tháp Chàm) to Krông Pha travelled through relatively flat terrain and required only conventional adhesion rail technology, but the remaining 44km from Krông Pha to Đà Lạt rose from 186m to 1,550m above sea level, demanding the use of state-of-the-art Swiss crémaillère (cog railway) technology. This short article, published in L’Éveil économique de l’Indochine on 20 February 1927, describes the inauguration of the first and most challenging 10km section from Krông Pha to Bellevue (Eo Gió, km 50) on 10 February 1927.

Henri Lartilleux’s map of the Krông Pha-Đà Lạt section of the Langbian Cog Railway

At 10.15am our train moves off and travels at a brisk pace along the 1,500m of almost flat rail track which separate us from the start of the rack section.

Suddenly the speed decreases; the pinion wheels of the locomotive engage with the rack and we attack an incline of 80mm/m, which soon becomes the 100mm/m and then 120mm/m. It’s like climbing a staircase, but effortlessly and at the steady speed of 10kph.

The first rack section on the Langbian Cog Railway

We feel as though we’re hanging on a vine at the edge of a precipice!

To reach the top, the locomotive makes use of full power, and no obstacles stand in our way.

We cut through sloped trenches in the granite. A great bulge of volcanic rock seems to block our way, but we pass through it easily via a 160m tunnel which leads us out onto a precipice, flanked by piles of rocks.

The train continues, and we soon arrive at another granite outcrop, which dwarfs us with its mass.

We cross torrents over bold bridges, and then we arrive at a train station on a bridge, set between the two great walls of a gorge… it’s Kabeu.

There’s just time to water the engine before the climb begins again, taking us over another section of rack rail, up through the rocks and peaks towards a sky which becomes steadily deeper and bluer as the air gets fresher and livelier.

A train arriving at Bellevue Station

Everything now reminds us strangely of France; the illusion is almost complete when, after crossing the last slopes and passing the most recently built structures, the train leads us onto the Dran plateau, where we see carnations and roses amidst the pine forest.

We are told that it will take several more months to achieve the final sections through the mountains of Annam, but the hardest and most costly part of this line has already been achieved. The laying of track between Bellevue and Dran is now nearing completion. Beyond it, the earthworks for another rack section from Dran up to l’Arbre Broyé are almost finished. If sufficient manpower is available, track laying will commence as soon as the next rainy season is over.

Soon, thanks to our skilled engineers, Dalat too will be much easier to access from Saigon.

A works train in the Bellevue Pass in early 1927

A train descends the first rack section on the Langbian Cog Railway

Kabeu Station

One of the line’s initial nine rack-and-pinion locomotives, Schweizerische Lokomotiv- und Maschinenfabrik (SLM) of Winterthur’s superheated 35.7-tonne HG4/4 0-8-0T number 701

Tim Doling is the author of The Railways and Tramways of Việt Nam (White Lotus Press, Bangkok, 2012) and also conducts 16-day and 13-day Việt Nam Rail Tours.

A full index of all Tim’s blog articles since November 2013 is now available here.

Join the Facebook group Rail Thing – Railways and Tramways of Việt Nam for more information about Việt Nam’s railway and tramway history and all the latest news from Vietnam Railways.

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