Class 12R "Lady Mary " No.1505 - 4-8-2
Built 1914 by North
British Locomotive, works number 19690
Nos.1494-1519 built in 1912 and again 1913-1915 by
North British Locomotive
Nos.1859-1878 built in 1921-1922 by Beyer Peacock
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.jpg) Copyright
Leith Paxton 2008 |
Original numbering 1494-1519 and 1859-1878
Driving wheel 4ft 3ins.
Cylinders 2 x 22½ins.x 26ins.
Valve gear: Walschaerts
Bolier Pressure: 190 psi
Grate Size: 37 square feet
Tractive Force: 36,780 lbs.
Length: 69 ft. 1½ins.
Weight: 95 tons 1,400lbs.
Axle Load: 17 tons 900lbs.
Tender Weight: 66 tons
Coal Capacity: 12 tons
Water Capacity: 6,000 gallons
Tender Types: MP, MP1, MR, MS, MT, MT1
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The first design
to originate from the SAR after its formation was for a 4-8-2 goods engine, the Class 12, and
was used mainly for coal traffic on the Germiston-Witbank route.
They were, in effect, an enlargement of D. A. Hendrie's [Superintendant of the Natal Government
Railways (NGR)] already sucessful Class 3B and they retained the design of plate frames and
Walschaerts's valve gear from this class.
The initial order for 8 engines was delivered by North British Locomotove Co. in 1912 while
a further 18 were supplied by the same company between 1913 and 1915. The final engines of
this type were built by Beyer Peacock in 1921.
Besides the Germiston-Witbank line they were also used around Ladysmith, Natal.
As these engines
equired new boilers they were given the standard No.2 boiler and reclassified as Class 12R.
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In Pinetown yard - 27th January 2008
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Shunted at Pinetown yard by diesel 35-679 - 27th January 2008
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