The Class 6 A 4-6-0- and the class 6 J 4-6-0
|A Class 6 A No. 462||A Class 6 J|
designed by locomotive superintendent Michael Stephens for fast passenger
service on the Cape Government Railways, successive orders for the 6th class
were placed with both British and American builders between 1893 and
for use on the CGR and the OVGS For convenience, the following descriptions are
distinguished between the plate and bar-framed engines and are examined in
order, The first order for 40 engines was delivered from Dubs and Co in 1893 and
became the 6th class- They were an enlargement of the CGR class 5 with
Stephenson’s link motion but with “D” valves positioned above the now
horizontal cylinders. They were placed in service on the Western and Midlands
system. A further order was received from Dubs & Cc, and Sharp, Stewart and
Co between 1895 and I 897.Tbese engines had larger boilers then the first order
and were classified as GA on the SAP and distributed throughout the colony- The
most successful bar-framed 6th class were the 14 locomotives supplied in 1902
fly Nielso, Reid and Co. Used initially on the Cape main line, they became the
class 6J on the SAR. The last engine of this type was withdrawn from service in
Bethlehem in 1972- All in all a great little locomotive that has stood the test
of time, and proved to be a real asset to the SAR. The GA and the 6J statistics
are as follows.
6A has a cylinder bore and stroke of 17”x
26”, driving wheels dia. 4’ 6” boiler pressure l80lbs per sq inch,
Tractive effort @ 75% BP 18780, weight of engine 45t, 15c, weight of tender 30t
7c, total length over the couplers 51’, 3 5/8”, grate area 16.6sq
it, max axle load 11t 18c. She carries 7.5 tons of coal, and 2600 gallons of
6J has a cylinder bore stroke of 17’x 26”, driving wheels dia 4’ 6”,
boiler pressure 180 lbs per
sq inch, tractive 4effort at 74%, engine weight 48 tons 16cwt, tender weight
34tons 3cwt, total length over the buffers 53’ 0”, grate area 18.7 sq It,
max axle load l3t8cwt.
wonderful old engines, although primitive by today’s standards, certainly
stood the test of time, and were looked after by their drivers and firemen.
Although I have not seen one personally doing a run, I can only imagine that
they were a treat to see by all in sundry. Those were the days my friend, we
thought would never end, but simply goon forever, and a day.
in line are the magnificent class sevens, but that’s another story.
The Garden Route Steam train Society.