South African type HT tender

South African type HT tender

300px Type HT tender on Class 18, c. 1927

Type and origin Locomotive Class 18 Designer South African Railways (Col F.R. Collins DSO) Builder Henschel and Son In service 1927

Specifications Configuration 2-axle bogies Gauge 3 ft 6 in (1,067 mm) Cape gauge Length 28 ft 4 in (8,636 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  • Front bogie  • Rear bogie Weight empty 71,488 lb (32,426 kg) Weight w/o Fuel type Coal Fuel cap. 14 LT (14.2 t) Water cap. Stoking Mechanical Couplers Drawbar & AAR knuckle

Career Operators South African Railways Numbers SAR 1360-1361

Main article: South African steam locomotive tenders

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

Two Type HT tenders entered service in 1927 and 1928, as tenders to the two Class 18 2-10-2 Santa Fe type steam locomotives which were acquired by the South African Railways in those years.

Manufacturers

Type HT tenders were built in 1927 by Henschel and Son of Kassel in Germany.

The South African Railways (SAR) placed two Class 18 Santa Fe type locomotives in service in 1927 and 1928. The locomotives and tenders were built to the design of Col F.R. Collins DSO, Chief Mechanical Engineer of the SAR, and were placed in service on the line between Witbank and Germiston, where increasingly heavy coal trains were overtaxing the hauling capacity of the non-articulated locomotive fleet.

The Type HT tender was arranged with a Duplex D.4 type mechanical stoker, operated by a four-cylinder steam engine. It had a coal capacity of 14 long tons (14.2 tonnes) and a water capacity of .

Classification

Since many tender types are interchangeable between different locomotive classes and types, a tender classification system was adopted by the SAR and these tenders were designated Type HT.

Only the two Class 18 locomotives were delivered new with Type HT tenders, which were numbered for their engines. An oval number plate, bearing the engine number and tender type, was attached to the rear end of the tender.

Letter codes

The first letter of the tender type indicates the classes of engines to which it can be coupled. The "H_" tenders could only be used with the two Class 18 locomotives with which they were delivered.

The second letter indicates the tender's water capacity. The "_T" tenders had a capacity of between .

Modification and reclassification

After their locomotives were withdrawn from service in the early 1950s, the two Type HT tenders had their mechanical stokers removed and their drawgear modified for use with Class 15CA locomotives. These two tenders were then reclassified to Type KT. The "K_" tenders could be used with the following locomotive classes:

• Class 15CB.
• Class 15CA.
• Class 16D.
• Class 16DA of 1928 and 1930.