Andaluces Beyer-Garratt Locomotives in Spain

Class 062-0401 (Locobase 3538)

The last du Bousquet-Meyer engines built for any railroad, these resembled those originally delivered to the Nord Railway in France in 1905. Although on a larger gauge, the Andaluces engines were smaller and lighter and had a different boiler layout and a Belpaire firebox. They handled traffic on the steep (3%) grades climbing out of the valley of the Guadalquivir at Cordoba northwest toward Belmez (the CB railway before it was absorbed).

Justo Arenillas, in "Las locomotoras belgas de Andaluces", Lineas Del Tren (reproduced on [], viewed 28 April 2003) offers more details, including the fact that in the Bousquet-Meyer, the rear bogie was fixed while the leading bogie had a central pivot. (In Mallets, the front engine traversed around a pivot at the rear of the assembly.) The cylinders faced each other under the center of the boiler (i.e., the front set were at the back of the front bogie, the rear set at the front of the trailing engine). Arenillas notes that this had the advantage of shortening the distance between the exhausting the HP cylinders (in the rear) and the larger, LP cylinders ahead.

[] (28 April 2003) has the diagrama with all dimensions and weights. The heating surface area given in the diagram included the inside area of the tubes (the fire side). The exterior diameter was 50 mm, which calculates to a total EHS of 2,220 sq ft (206.25 sq m).

The photo shows that the relatively small water tanks were quite shallow and rode the running board from the buffer beam to the first set of cylinders. Arenillas says that weight limitations meant that these tanks had to be kept small and that a separate tank car full of water always accompanied one of these locomotives.