AN/SQS-35 and AN/SQR-18A

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SB AN-SQS-35 and AN-SQR-18A.png


History

AN/SQS-35 is a large towed array active sonar housed in a composite "fish". AN/SQR-18/18A/19 is a towed hydrophone array known as TACTAS.

Description of AN/SQS-35 here: [1]

Description of AN/SQR-18A here: [2]

Comments

This was a difficult project due to lack of online resources. Apparently the AN/SQS-35 "fish" is related to the AN/SQA-13 system, so I used the dimensions of that, which were available. Photographs of a Knox-class frigate seem to confirm the size. All TACTAS arrays, AN/SQR-18, 18A(V)2, 18A(V)3 and 19 should look similar in SB scale but I cannot confirm this. The cradle is drawn from photographs rather than diagrams and should be roughly correct when compared to real USN and JMSDF equipment. Use this part with caution.

Charguizard (20/09/2023)


Used on

AN/SQS-35

  • Knox-class


AN/SQR-18/18A/19

  • Knox-class
  • Oliver Hazard Perry-class
  • Spruance-class

Part description

The component is drawn partially wrapped around so it would fit in a template. Note that you can have only the SQS-35 "Fish" on a ship without the TACTAS, but I do not know how the TACTAS is deployed by itself without a "fish". The tether cable would be about 1600m long when fully deployed, which is impractical for an SB drawing, so I chose to represent it The distance between the "fish" and the hydrophone is accurate, and so is the hydrophone's length. The end is capped by a small drogue which is hard to represent in scale, and of which I have no good photographs.

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