Radar: Surface search I-band SAS Manthatisi (S101) is a Heroine-class submarine currently in service with the South African Navy.

The Executive Mayor of Naledi Local Municipality and the godmother of the S101, Dr. Ruth Segomotso Mompati, announced the name of the submarine in 2006 at a ceremony in Simon's Town.

[3][disputed – discuss] Manthatisi arrived in Simon's Town on 8 April 2006, accompanied by the Valour-class frigate SAS Amatola (F145).

The NATO ships included the USS Normandy, German tanker Spessart, HNLMS Evertsen, HMCS Toronto, HDMS Olfert Fischer and NRP Álvares Cabral.

[8] On 20 September 2023, Manthatisi was involved in a fatal accident en route to Table Bay from Simon's Town for the South African Navy Festival.