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South African class NG G16
South Africa | 1937 | 34 produced
NG G16 No. 115 on a Beyer, Peacock & Co company photo
NG G16 No. 115 on a Beyer, Peacock & Co company photo
flickr/Historical Railway Images

The NG G16 was a direct development of the NG G13. The biggest differences were that the carrying axles now ran in roller bearings and the inner carrying axles were no longer just laterally adjustable, but radially adjustable. The first four locos came from Cockerill in Belgium and only series 2 to 4 came from Beyer, Peacock. The seven series 4 engines had larger supplies as they were originally intended for the Tsumeb Copper Corporation and then delivered to the SAR. The last eight locomotives came from Hunslet-Taylor in South Africa in 1967 and 1968 because Beyer, Peacock had stopped building steam locomotives. They were the last new steam locomotives that the SAR received. From 1989, two locomotives were modernized with knowledge that was also used on the “Red Devil”.

Variantseries 1-3 and 5series 4
General
Built1937-1956, 1967-19681958
ManufacturerCockerill, Beyer, Peacock & Co., Hunslet-Taylor
Axle config2-6-2+2-6-2T (Double Prairie (Garratt)) 
Gauge2 ft 0 in (Two feet)
Dimensions and Weights
Length48 ft 5 1/4 in
Wheelbase13 ft 10 1/2 in
Fixed wheelbase6 ft 3 in
Total wheelbase43 ft 3 in
Service weight132,384 lbs139,328 lbs
Adhesive weight87,696 lbs90,692 lbs
Axle load15,546 lbs15,456 lbs
Water capacity2,192 us gal2,240 us gal
Fuel capacity8,960 lbs (coal)13,888 lbs (coal)
Power
Power sourcesteam
Estimated power700 hp (522 kW)
Optimal speed21 mph
Starting effort21,364 lbf
Power Plant
Driver diameter33 in
Boiler pressure180 psi
Expansion typesimple
Cylindersfour, 12 x 16 in
Boiler
Grate area19.5 sq ft
Firebox area82.1 sq ft
Tube heating area838.9 sq ft
Evaporative heating area921 sq ft
Superheater area149 sq ft
Total heating area1,070 sq ft
Calculated Values
steam locomotive
passenger
freight
narrow gauge
Garratt
last changed: 03/2023
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