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  2. AN/UQQ-2 Surveillance Towed Array Sensor System - Wikipedia

    en.wikipedia.org/wiki/AN/UQQ-2_Surveillance...

    The array length is 1,500 m (4,900 ft) with an operational depth of 150 to 460 m (500 to 1,500 ft). The SURTASS LFA ship must maintain a minimum speed of approximately 6 kilometres per hour (3.2 knots) through the water in order to tow the hydrophone array in the horizontal plane.

  3. Ehime Maru and USS Greeneville collision - Wikipedia

    en.wikipedia.org/wiki/Ehime_Maru_and_USS...

    The submarine maneuvered towards Ehime Maru 's survivors to attempt a rescue. Weather conditions were unhelpful: 15- to 20-knot winds, which, in turn, were producing waves of 8 to 12 feet. Due to these rough seas, the submarine's main deck hatches could not be opened; the only outside access was through the top of the sail through its access trunk.

  4. SOFAR channel - Wikipedia

    en.wikipedia.org/wiki/SOFAR_channel

    The SOFAR channel (short for sound fixing and ranging channel), or deep sound channel (DSC), [1] is a horizontal layer of water in the ocean at which depth the speed of sound is at its minimum. The SOFAR channel acts as a waveguide for sound, and low frequency sound waves within the channel may travel thousands of miles before dissipating.

  5. Towed array sonar - Wikipedia

    en.wikipedia.org/wiki/Towed_array_sonar

    The DUBV 43C towed array sonar of La Motte-Picquet.. A towed array sonar is a system of hydrophones towed behind a submarine or a surface ship on a cable. [1] Trailing the hydrophones behind the vessel, on a cable that can be kilometers long, keeps the array's sensors away from the ship's own noise sources, greatly improving its signal-to-noise ratio, and hence the effectiveness of detecting ...

  6. CAPTAS-4 - Wikipedia

    en.wikipedia.org/wiki/CAPTAS-4

    The CAPTAS-4 is a towed array sonar developed by Thales Underwater Systems to equip first-rank surface combatants.Manufactured in Brest, France, it represents the high-end and most powerful system of the company's CAPTAS (Combined Active and Passive Towed Array Sonar) line of products [1] and equips several first-rank warships of the French Navy as well as those of various export customers.

  7. Titanic OceanGate submarine missing with five onboard only ...

    www.aol.com/titanic-tourist-submarine-goes...

    The 5 person crew submerged Sunday morning, and the crew of the Polar Prince lost contact with them approximately 1 hour and 45 minutes into the vessel’s dive. — USCGNortheast (@USCGNortheast ...

  8. Submarine detection system - Wikipedia

    en.wikipedia.org/wiki/Submarine_detection_system

    Submarine detection systems are an aspect of antisubmarine warfare. They are of particular importance in nuclear deterrence , as they directly undermine one of the three arms of the nuclear triad by making counter-force attacks on submarines possible.

  9. ‘Tapping sounds’ detected by sonar in search for missing ...

    www.aol.com/canadian-rescuers-heard-banging-area...

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