This locomotive of 2-6-0 T type (one leading pony truck axle, 3 driving axles) was built in 1920/21 by the Haine Saint Pierre works in Belgium, following a post-WW I order for replacement engines. It was put into service in 1922 on the Voies ferries d’Intérêt Local (VFIL) network in the Oise département. Identical locomotives ran on the Somme system, including on lines around the Somme Bay.

Assigned first to the Noyon-Guiscard and Noyon-Lassigny lines, it was then transferred to the St Just en Chaussée to Crèvecoeur le Grand line. It was withdrawn from service on 30^th April 1961.

Like two other locomotives now on by the CFBS, N° 15 was preserved from being scrapped with a view to creating a secondary railway museum in Verneuil (Marne). When this project failed, the engine was moved to the CFBS in 1971.

After spending some 20 years in limbo, the growth of the heritage railway enabled restoration work on N° 15 to be launched in the early 1990s. She was the first of our engines to be fitted with a newly-built boiler. The locomotive was officially put into service at the 1998 Steam Gala.

Since then, this engine – one of the two most powerful on the railway – is one of the mainstays of steam haulage on the CFBS. In 2015, it beat the seasonal mileage record previously held by Corpet-Louvet 2-6-0 T N° 1, having travelled no less than 9986km (6241 miles)!
 

Listed as a Technical Heritage Item

Some technical data:
- Empty weight: 24.850 t.
- Diameter of driving wheels: 1.025 m.
- Diameter of pony truck wheels: 0.730 m.
- Working pressure: 12.6 kg/cm2
- Surface of the grate: 1 m2
- Diameter of the cylinders: 0.360 m.
- Piston stroke: 0.460 m.
- Length: 8.610 m.
- Width: 2.450 m.
- Height: 3.300 m.