South African type KT tender

South African type KT tender

Type KT tender no. 2041 on Class 15CA, 2009

Type and origin ♠ 12 long tons coal capacity ♥ 13 long tons coal capacity ♣ 14 long tons coal capacity Locomotive Class 15C, Class 15CA, Class 16D, Class 16DA Designer Baldwin Locomotive Works Builder American Locomotive Company Baldwin Locomotive Works Henschel and Son Hohenzollern Locomotive Works Società Italiana Ernesto Breda North British Locomotive Company In service 1925-1930 Rebuilt from Type HT Rebuilder South African Railways Rebuild date c. 1950

Specifications Configuration 2-axle bogies Gauge 3 ft 6 in (1,067 mm) Cape gauge Length 28 ft 8 1⁄4 in (8,744 mm) Wheel dia. 34 in (864 mm) Wheelbase 20 ft 5 in (6,223 mm)  • Bogie 6 ft 2 in (1,880 mm) Axle load ♠ 16 LT 11 cwt (16,820 kg) ♥ 16 LT 17 cwt 2 qtr (17,150 kg) ♣ 17 LT 15 cwt (18,030 kg)  • Front bogie ♠ 32 LT 18 cwt (33,430 kg) ♥ 33 LT 10 cwt (34,040 kg) ♣ 33 LT 18 cwt (34,440 kg)  • Rear bogie ♠ 33 LT 2 cwt (33,630 kg) ♥ 33 LT 15 cwt (34,290 kg) ♣ 35 LT 10 cwt (36,070 kg) Weight empty 68,888 lb (31,247 kg) Weight w/o ♠ 66 LT (67,060 kg) ♥ 67 LT 5 cwt (68,330 kg) ♣ 69 LT 8 cwt (70,510 kg) Fuel type Coal Fuel cap. ♠ 12 LT (12.2 t) ♥ 13 LT (13.2 t) ♣ 14 LT (14.2 t) Water cap. 6,000 imp gal (27,300 l) Stoking Manual Couplers Drawbar & Johnston link-and-pin Drawbar & AAR knuckle (1930s)

Career Operators South African Railways Numbers SAR 843-850, 860-866, 868-879, 2039–2077, 2801-2857 Ex Type HT 1360-1361

The South African type KT tender was a steam locomotive tender.

The Type KT tender first entered service in 1925, as tenders to the Class 15CB Big Bill 4-8-2 Mountain type and Class 16D Big Bertha 4-6-2 Pacific type steam locomotives which were acquired by the South African Railways in that year.

Type KT tenders were built between 1925 and 1930 by American Locomotive Company, Baldwin Locomotive Works, Henschel and Son, Hohenzollern Locomotive Works, Società Italiana Ernesto Breda and North British Locomotive Company.

The South African Railways (SAR) placed twelve Class 15C Mountain type locomotives (reclassified to Class 15CB in 1926) and seven Class 16D Pacific type locomotives in service in 1925 and 1926. The locomotives and tender were designed by Baldwin Locomotive Works of Philadelphia. The Classes 15C and 16D were acquired specifically for the long runs of the Union Limited (Johannesburg to Cape Town) and Union Express (Cape Town to Johannesburg) passenger trains. The Type KT first entered service as tenders to these two locomotive Classes.

The tenders were arranged with self-trimming type coal bunkers and had a maximum coal capacity of 14 long tons (14.2 tonnes) and a maximum water capacity of 6,000 imperial gallons (27,300 litres), which was considered sufficient for the engines to travel 100 miles (161 kilometres) without having to replenish water.

The water capacity of the tenders were described in official SAR diagrams as "nominal", while three coal capacities of 12, 13 and 14 long tons (12.2, 13.2 and 14.2 tonnes) were shown. This appears to have been limitations for working on lines laid with lighter rail after the respective engines were withdrawn from mainline working, since the tenders were apparently not modified to reduce their capacities. The instruction was that water capacity (water taken) was to be reduced where necessary to ensure that the respective maximum axle loads of 16 long tons 11 hundredweight (16,820 kilograms), 16 long tons 17 hundredweight 2 quarters (17,150 kilograms) and 17 long tons 15 hundredweight (18,030 kilograms), as shown in the diagrams with the three given coal loads, were not exceeded.