The Ministry of Defence has placed a contract with Ultra Electronics for the provision of three Sonar 2170 ‘Surface Ship Torpedo Defence’ systems to be fitted to the Type 31 Frigate fleet.
Known as Sonar 270 in Royal Navy service, the United Kingdom Surface Ship Torpedo Defence (SSTD) system entered into service with the Royal Navy in 2004. The system is produced by Ultra Electronics and is known as Sea Sentor in the export market.
The system consists of
- an acoustic passive towed array
- a towed acoustic countermeasure (flexible)
- a single-drum winch
- a processing cabinet
- 2 display consoles
- 2 expendable acoustic device launchers (1 port, 1 starboard)
- 16 expendable acoustic devices (8 in each launcher)
The contract notice states:
“Ship Acquisition, which is part of the UK Ministry of Defence (MOD) proposes to place a contract with Ultra Electronics Limited for the provision of three Sonar 2170 SSTD Fit-to-Receive (FTR) kits. The SSTD kits are to be integrated onto the Type 31 Frigates.
The equipment to be supplied is Fit-to-Receive kits for the Sonar 2170 SSTD which the MoD owns and utilises across UK MOD Platforms.
Therefore, it is a key requirement that it is interoperable with the existing Sonar 1270 SSTD currently utilised. Ultra Electronics Limited has been identified as the only supplier capable of fulfilling this requirement as they are the sole manufacturer of the FTR kits and are the sole supplier holding specific technical data required for the performance of the contract.”
The contract is valued at £600,000.
The rendering at the top of the article shows Type 31 employing its Sonar 2170 towed-body equipment.