South African type MR tender
Type MR on SAR Class 12R, 1979
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| Type and origin | |
|---|---|
| Locomotive | Class 12, Class 12A, Class 12B, Class 14A, Class 14B, Class 15, Class 15A, Class 16, Class 16A, Class 16B, Class 16C |
| Designer | South African Railways |
| Builder | South African Railways |
| In service | c. 1930 |
| Rebuilt from | Type MP1 |
| Specifications | |
|---|---|
| Configuration | 2-axle bogies |
| Gauge | 3 ft 6 in (1,067 mm) Cape gauge |
| Length | 25 ft 10 3⁄8 in (7,884 mm) no. 1494-1519, 1746-1760 25 ft 10 3⁄4 in (7,893 mm) all others |
| Wheel dia. | 34 in (864 mm) |
| Wheelbase | 16 ft 9 in (5,105 mm) |
| • Bogie | 4 ft 7 in (1,397 mm) |
| Axle load | 13 LT 14 cwt (13,920 kg) |
| • Front bogie | 24 LT 19 cwt (25,350 kg) |
| • Rear bogie | 27 LT 8 cwt (27,840 kg) |
| Weight empty | 48,864 lb (22,164 kg) |
| Weight w/o | 52 LT 7 cwt (53,190 kg) |
| Fuel type | Coal |
| Fuel cap. | 10 LT (10.2 t) |
| Water cap. | 4,600 imp gal (20,900 l) |
| Stoking | Manual |
| Couplers | Drawbar & AAR knuckle |
| Career | |
|---|---|
| Operators | South African Railways |
| Numbers | SAR 790-841, 851-852, 1494-1550, 1561-1595, 1746-1760, 1781-1828, 1839-1878, 1901-1921, 1931-1970, 2011-2025, 2080-2100, 2103-2138 |
The South African type MR tender was a steam locomotive tender.
Type MR tenders were rebuilt from Type MP1 tenders, which had entered service between 1912 and 1920. The rebuilding resulted in a tender with a larger water tank, but the same coal capacity.
The Type MP1 tender first entered service in 1912, as tenders to the Class 12 4-8-2 Mountain type steam locomotives which were acquired by the South African Railways (SAR) in that year. They were built by North British Locomotive Company and Beyer, Peacock and Company.
More Type MP1 tenders, from which the Type MR would later be rebuilt, entered service from 1913 to 1920 as tenders to the Classes 12A, 12B, 14A, 14B, 15, 15A, 16, 16A, 16B and 16C. These locomotives and tenders were built by Baldwin Locomotive Works, Beyer, Peacock and Company, Henschel and Son, J.A. Maffei and North British Locomotive Company.
Other locomotives which were delivered new with Type MP1 tenders were the Classes 14, MC1, MH and MJ.
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