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At random: Nautilus has long been a popular name for a submarine. Some of the more famous of these are Robert Fulton's NAUTILUS (1800), Jules Verne's fictional Nautilus, and the NAUTILUS of Sir Hubert Wilkins in which he attempted a voyage to the North Pole under the ice (1931). There have also been three U.S. submarines of that name, including the world's first nuclear powered submarine built by the Electric Boat Division.

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Pedro

Posted 2017-09-29 8:10 AM (#85226)

COMSUBBBS

Posts: 2974

Location: Liverpool, England

Subject: RN's Latest Boat Builds

Two of the RN's latest boat builds HMS Ambush and HMS Audacious. The claim that their sonar's can detect vessels leaving New York harbour from a submerged listening post in the English Channel is impressive. My first thought was it might be a bit of a stretch of the imagination. Second thought was, what do I know about today's technologies and their capability parameters? The answer to that was absolutely nothing.

https://www.youtube.com/watch?v=DQbbCk9HQaU

https://www.youtube.com/watch?v=cTPaBONKgkA

Pedro

Edited by Pedro 2017-09-29 8:13 AM

GaryKC

Posted 2017-09-29 8:37 AM (#85227 - in reply to #85226)

COMSUBBBS

Posts: 3666

Location: Kansas City Missouri

Subject: RE: RN's Latest Boat Builds

They are finally self aware, USS McCain and Fitzgerald took themselves offline after reading Tweets. They control our vehicles, our smart phones and appliances

rover177

Posted 2017-09-29 12:58 PM (#85229 - in reply to #85226)

Master and Commander

Posts: 1576

Location: Wollongong, NSW

Subject: RE: RN's Latest Boat Builds

Really depends on water conditions and depth of the sonar. Deep sound channel and noise travels 'forever.' In Onslow, 1981, we carried out the first tests of an RAN Oboat with a deployed chemical filled towed array sonar. At the bottom corner of Western Australia, as we entered the Indian Ocean, we were listening to traffic leaving the Gulf of Hormuz. This array was towed along, at own depth , a short distance behind the submarine. North Atlantic is a good listening platform as well.
Newer arrays cab be deployed to different depths and have steerable listening arcs.

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