By Mikael Perron, 1 June 2026
According to a press release from Thales, the River class destroyers will be fitted with the CAPTAS 4 sonar system like the other Type 26 based ships. Previous RCN fact sheets mentioned the usage of a Towed Low Frequency Active & Passive Sonar from Ultra Electronics but Ultra Electronics is absent from the newly updated fact sheet on the RCN web site. While it is good news on the construction side of the project, removing the need to modify the ship’s stern for a different sonar system, it is also a departure from the tradition of developing indigenous sonar system for the RCN. See
https://www.canada.ca/content/dam/rcn-mrc/documents/ships/river-class-factsheet-2026.pdf
Image: A photo of a CAPTAS 4 towed sonar body is seen in this publicity photo provided by Thales. Credit: Thales.
