SSTD

In today's article we are going to delve into SSTD, a topic that has captured the attention of many people in recent times. Whether for its relevance in today's society, its impact on everyday life or its historical importance, SSTD has been the subject of debate, interest and study by experts and fans alike. From its origins to its current situation, through its influence in different areas and its evolution over time, SSTD is a topic that deserves to be explored in detail and exhaustively. In this article, we will delve into its different facets, analyze its implications and discover its true meaning in the current context.

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 S2170 or Sonar 1270 by the Royal Navy and 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 system is a footprint compatible replacement for the AN/SLQ-25 Nixie system previously installed on RN warships.

The passive acoustic towed array is specifically designed to detect torpedoes (unlike traditional ASW sonars) and has additional in-built non-acoustic as well as acoustic intercept sensors. Through advanced AI processing it is able to generically identify torpedoes as well as classify specific weapon types and modes and undertake threat evaluation and posturing analysis. The system provides tactical advice dependent upon the specific threat weapon, mode and posture to maximise vessel survivability, which typically involves vessel manoeuvres and also includes the deployment of countermeasures. The countermeasures - both towed and expendable variants - lure the threat away from the vessel in a soft-kill manner.

Ultra Electronics also produces a hard-kill variant known as the TRAPR DCL system currently under development for the US Navy.

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