South African type XM1 tender


The South African type XM1 tender was a steam locomotive tender.
Type XM1 tenders were Type TM tenders which were reclassified after their intermediate draw and buffing gear were altered to an "X_" tender configuration. They first entered service in 1912, as tenders to the SAR Class MC Denver type Mallet locomotive.

Origin

Type TM tenders were built between 1910 and 1912 by the North British Locomotive Company. The two Type XM1 tenders originally entered service on the South African Railways in 1912, as Type TM tenders to Class MC Denver type Mallet locomotives.

Rebuilding

At some stage before 1941, the intermediate draw and buffing gear of two of the tenders, numbers 1607 and 1615, were altered to an "X_" tender configuration. These two tenders were reclassified to Type XM1.

Characteristics

The tender had a coal capacity of and a water capacity of, with a maximum axle load of.

Classification letters

Since many tender types are interchangeable between different locomotive classes and types, a tender classification system was adopted by the SAR. The first letter of the tender type indicates the classes of engines to which it could be coupled. The "X_" tenders could be used with the following locomotive classes:
The second letter indicates the tender's water capacity. The "_M" tenders had a capacity of.
A number, when added after the letter code, indicates differences between similar tender types such as function, wheelbase or coal bunker capacity.