Info from www.atlanticrail.co.za/class24.php
The locomotive in use at Atlantic Rail is No. 3655 (Builder's Number: NBL 26367) and was originally used in the then South West Africa (now Namibia). After being withdrawn from service there, she was used at the Paarden Eiland / Belville. Later, 3655 was moved to Touws River in the Karoo for use on the Ladismith branch line until that was shut down. 3655 was then left idle and unused in Touws River until she was donated to Cape Western Vintage Railways who restored her. 3655 has now been leased by Atlantic Rail from Cape Western Vintage Railways and Atlantic Rail has taken over responsibility for maintaining her.
The tender is of the 'Vanderbilt' type, carried on two six wheel 'Buckeye' bogies.
Tractive Effort (75%) :123 kN (27600 lb)
Weight in Working Order :73 t (Loco) 56 t (Tender)
Cylinders :(2) 483 X 660 mm (19" X 26")
Tender Capacity :Coal 9 t Water 20500 l (4500 gal)
Coupled Wheels :1290 mm (4'3")
Boiler Pressure :1379 kPa (200 psi)