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Submarines

Discussion in 'Hunting, Fishing, Boating, HIking, Trapping' started by searcher, Sep 10, 2016.



  1. searcher

    searcher Mother Lode Found Site Supporter ++ Mother Lode

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    HMS Vigilant officers threatened to resign over affairs
    News Media



    Published on Oct 8, 2017
    HMS Vigilant officers threatened to resign over affairs on board nuclear-armed Royal Navy submarine by captain and his second-in-command.
    Five officers on board a British nuclear-armed submarine have threatened to resign amid reports of a love scandal involving the captain and his second-in-command.

    HMS Vigilant was submerged below the North Atlantic when reports of the high-ranking submarine officials having sexual relations with two different women emerged - something which is forbidden between two serving personnel on the same vessel.

    The incident came to light after a member of the crew alerted senior officials at the vessel's base in Faslane, near Glasgow.
     
  2. searcher

    searcher Mother Lode Found Site Supporter ++ Mother Lode

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    Female officer removed from nuclear submarine HMS Vigilant
    Headline News



    Published on Oct 15, 2017
    Female officer removed from nuclear submarine HMS Vigilant
     
  3. searcher

    searcher Mother Lode Found Site Supporter ++ Mother Lode

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  4. Thecrensh

    Thecrensh Gold Member Gold Chaser

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    That was pretty interesting. At least to me...
     
  5. searcher

    searcher Mother Lode Found Site Supporter ++ Mother Lode

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    A RUSSIAN GHOST SUBMARINE, ITS U.S. PURSUERS AND A NEW COLD WAR || WARTHOG 2017
    Warthog Defense



    Published on Nov 3, 2017
    The Krasnodar, a Russian attack submarine, left the coast of Libya in late May, headed east across the Mediterranean, then slipped undersea, quiet as a mouse. Then, it fired a volley of cruise missiles into Syria.

    In the days that followed, the diesel-electric sub was pursued by the aircraft carrier USS George H.W. Bush, its five accompanying warships, MH-60R Seahawk helicopters and P-8 Poseidon anti-sub jets flying out of Italy.
     
  6. searcher

    searcher Mother Lode Found Site Supporter ++ Mother Lode

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    Argentina detects seven failed satellite calls from missing submarine raising hopes that 44 crew members may still be alive
    • Seven failed 'satellite calls' from ARA San Juan detected Saturday in Argentina
    • Submarine last contacted on Wednesday, 250 miles off the coast of Patagonia
    • Massive search effort underway as high winds and waves lash the South Atlantic
    • Sub was travelling from naval base at Ushuaia to another south of Buenos Aires
    • The US Navy has sent one of its high-tech surveillance aircraft to scan the area


    Read more: http://www.dailymail.co.uk/news/article-5096909/Argentina-detects-satellite-signals-missing-submarine.html#ixzz4yspUBlXZ
    Follow us: @MailOnline on Twitter | DailyMail on Facebook
     
  7. searcher

    searcher Mother Lode Found Site Supporter ++ Mother Lode

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    U.S.S Razorback, The Life of a Ship's Cook!
    Neil Bullock



    Published on Mar 21, 2017
    Welcome to the fifth video of a series of videos I filmed in March of 2016 on the U.S.S. Razorback!

    The men of the Razorback are some of the greatest guys you could meet and they spent three days showing me around their old home.
     
  8. searcher

    searcher Mother Lode Found Site Supporter ++ Mother Lode

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    TRAINING TO BE A MACHINIST MATE ON A SUBMARINE!
    NICKY MGTV



    Published on Nov 19, 2017
    This video we are doing a podcast on training to be machinist mate and what Nate Towler experienced during his training. While not much can be shared on specifics he is able to shine a spotlight on challenges with A school, C school, and picking orders to Hawaii.

    Part 1: https://youtu.be/guu7ZA4Jz6k

    Social Media
    Instagram: NickyMGTV
    Snapchat: Emseagray
     
  9. searcher

    searcher Mother Lode Found Site Supporter ++ Mother Lode

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    Search for Missing Argentine Submarine Races As Crew’s Oxygen Dwindles
    By: Ben Werner
    November 21, 2017 12:02 PM • Updated: November 21, 2017 12:24 PM



    The Navy deployed unmanned underwater vehicles Tuesday in the search for the missing Argentine submarine as officials worry about the crew’s remaining oxygen.

    Under the worst-case scenario, the ARA San Juan—missing since Wednesday – could be running out of oxygen if the sub hasn’t been able to surface, Argentine Navy officials said Tuesday, according to news reports.

    The search is focused on an area off the coast of Argentina, which for the past few days has been hammered by rough weather, including reports of 20-foot seas. Tuesday’s forecast called for calmer conditions to assist the search.

    “This phase of search and rescue is critical,” Argentine Armada spokesman Enrique Balbi said.
    “This is why we are deploying all resources with high-tech sensors. We welcome the help we have received to find them.”

    The U.S. Navy is providing four unmanned vehicles to search underwater for clues to missing sub’s location, according to a Navy statement. The recently established Unmanned Undersea Vehicle Squadron 1, based in Pearl Harbor, Hawaii, brought to Argentina one Bluefin-12D (Deep) unmanned undersea vehicle (UUV) and three Iver 580 UUVs.

    The Bluefin-12D can conduct search operations at 3 knots and down to a depth of nearly 5,000 feet, for 30 hours, according to a Navy statement. This is a smaller version of the UUV used by the Navy in 2014 to search for missing Malaysia Airlines Flight 370, thought to have crashed into the Indian Ocean.

    The Iver 580s can operate at a depth of 325 feet, traveling at 2.5 knots, for up to 14 hours, according to a Navy statement. These UUVs cans search wide areas of the ocean using side scan sonar, which creates images of large areas of the seafloor, according to a Navy statement.

    Also assisting the search is a Navy P-8A Poseidon aircraft and a NASA P-3 research aircraft. If a rescue is to be attempted, the Navy’s specialized undersea rescue team, based in San Diego, is already staged in Argentina if asked to help.


    https://news.usni.org/2017/11/21/se...ubmarine-races-feared-dwindling-oxygen-supply
     
    Last edited: Nov 22, 2017
  10. searcher

    searcher Mother Lode Found Site Supporter ++ Mother Lode

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    Missing Argentine submarine 'is located by US Navy and a new sonar signal heard' as rescuers race to the spot with oxygen due to run out imminently
    • Search for missing Argentine submarine intensifies as the crew said to run out of oxygen today
    • US Navy aircraft reportedly detected a 'heat stain from a metallic object' at a depth of about 230ft
    • Separately, a rescue vessel allegedly reported hearing an infrasound sonar signal late Tuesday night
    • Sub with 44 crew went missing last Wednesday while sailing from Ushuaia to naval base in Mar del Plata
    • They sailed on Monday, communication was lost on Wednesday, and search is now involving several nations
    • An Argentine Navy spokesman warned yesterday that the crew only have oxygen until Wednesday morning


    Read more: http://www.dailymail.co.uk/news/article-5106689/Missing-Argentine-submarine-located-Navy.html#ixzz4zAQJxIPS
    Follow us: @MailOnline on Twitter | DailyMail on Facebook
     
  11. searcher

    searcher Mother Lode Found Site Supporter ++ Mother Lode

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    LIFE ON A SUBMARINE AS A MACHINIST MATE?!: Nicky MGTV Podcast
    NICKY MGTV



    Published on Nov 20, 2017
    This video I discuss working hours, quality of life, and what to expect with normal day to day living on a naval submarine. Please realize he may not be able to disclose much information but he can give you some good insight on comforts of home and what to expect. Enjoy!

    Social Media
    Instagram: NickyMGTV
    Snapchat: Emseagray
     
  12. searcher

    searcher Mother Lode Found Site Supporter ++ Mother Lode

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  13. Professur

    Professur Midas Member Midas Member Site Supporter ++

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    They've picked up an underwater explosion in the area being searched. An area that just happens to be right on the continental shelf. Why, if you're in peace time and in a damaged sub heading for a repair bay, would you take a course away from land? And what are the odds you'd just happen to have a catastrophic failure at the single point of that cruise where the water is deepest?

    Something smells.
     
    GOLDBRIX and searcher like this.
  14. searcher

    searcher Mother Lode Found Site Supporter ++ Mother Lode

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    Families of missing submarine crew have been told their loved ones are DEAD: Relatives react with fury as Argentine Navy confirms an explosion was recorded last week when it vanished
    • Family members of the submarine's crew have reacted with fury to navy's news
    • Spokesman said an explosion was recorded last week after the vessel vanished
    • 'Hydroacoustic anomaly' picked up less than three hours after last transmission
    • Russia thrown its weight behind search party by sending a ship on Putin's orders


    Read more: http://www.dailymail.co.uk/news/article-5111129/Has-missing-submarine-located-Navy-spots-object.html#ixzz4zHnfHAY7
    Follow us: @MailOnline on Twitter | DailyMail on Facebook
     
  15. searcher

    searcher Mother Lode Found Site Supporter ++ Mother Lode

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  16. Professur

    Professur Midas Member Midas Member Site Supporter ++

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    And guess who's paying for that ...
     
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  17. searcher

    searcher Mother Lode Found Site Supporter ++ Mother Lode

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    U.S. Fast-Attack Submarine Makes It Home For The Holidays
    Gung Ho Vids



    Published on Nov 24, 2017
    The U.S. Navy submarine USS Illinois (SSN-786) arrives at Pearl Harbor Naval Base, HI on November 22, 2017, following a change of homeport from Groton, CT. USS Illinois is a Virginia-Class nuclear powered fast-attack submarine with 134 Navy personnel aboard, commissioned on October 29, 2016.

    Film Credits: U.S. Navy Video by PO1 Daniel Hinton
     
  18. searcher

    searcher Mother Lode Found Site Supporter ++ Mother Lode

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    Putin's 'Prince Vladimir' revealed: 'World's deadliest sub' can launch 20 nuclear warheads and destroy cities 6,000 miles away
    • The Borei II-class sub was launched at the Sevmash Shipyards in Severodvinsk in front of hundreds of workers
    • The Knyaz Vladimir, or Prince Vladimir, can launch 20 warheads at a time
    • It can dive to depths of 400 metres making it virtually undetectable to radar
    • A total of eight of the Borei class subs will be built by 2025 according to Russian military sources


    Read more: http://www.dailymail.co.uk/sciencetech/article-5114651/Russian-sub-hit-cities-5-778-miles-away-nukes.html#ixzz4zSEy9Vj7
    Follow us: @MailOnline on Twitter | DailyMail on Facebook
     
  19. searcher

    searcher Mother Lode Found Site Supporter ++ Mother Lode

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    Argentine Navy: Water Entered Missing Sub’s Snorkel

    November 27, 2017 by Reuters

    [​IMG]
    ARA San Juan seen at its home base of Naval Base Mar del Plata. Photo:

    By Hugh Bronstein BUENOS AIRES, Nov 27 (Reuters) – Water entered the snorkel of the Argentine submarine ARA San Juan, causing its battery to short-circuit before it went missing on Nov. 15, a navy spokesman said on Monday as hope dwindled among some families of the 44-member crew.

    The San Juan had only a seven-day oxygen supply when it lost contact, and a sudden noise was detected that the navy says could have been the implosion of the vessel. Ships with rescue equipment from countries including the United States and Russia were nonetheless rushing to join the search.

    Before its disappearance, the submarine had been ordered back to its Mar del Plata base after it reported water had entered the vessel through its snorkel, causing a battery short circuit, navy spokesman Enrique Balbi told a news conference.

    “They had to isolate the battery and continue to sail underwater toward Mar del Plata, using another battery,” Balbi said.

    After contact with the San Juan was lost, the Vienna-based Comprehensive Nuclear Test-Ban Treaty Organization, an international body that runs a global network of listening posts designed to check for secret atomic blasts, detected a noise the navy said could have been the submarine’s implosion.

    The search for the 65-meter (213-foot) diesel-electric submarine is concentrated in an area some 430 km (267 miles) off Argentina’s southern coast. The effort includes ships and planes manned by 4,000 personnel from 13 countries, including Brazil, Chile and Great Britain.

    Among the crew’s family members, fissures started appearing on Monday between those who refuse to give up hope and those who say it is time to accept that their loved ones will not come back alive.

    Some relatives have said they are focusing on the lack of physical evidence of an implosion and the possibility that the submarine might have risen close enough to the ocean surface to replenish its oxygen supply after it went missing.

    But Itati Leguizamon said she believed her husband, crew member German Suarez, had died.

    “There is no way they are alive,” she told reporters, her voice shaking and eyes welling with tears. “It is not that I want this. I love him. I adore him. He left his mother and sister behind, but there is no sense in being stubborn.

    “The other families are attacking me for what I am saying,” she said, “but why have they not found it yet? Why don’t they tell us the truth?” (Additional reporting by Eliana Raszewski; Editing by Lisa Von Ahn)

    (c) Copyright Thomson Reuters 2017.

    http://gcaptain.com/argentine-navy-water-entered-missing-subs-snorkel/
     
  20. searcher

    searcher Mother Lode Found Site Supporter ++ Mother Lode

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  21. searcher

    searcher Mother Lode Found Site Supporter ++ Mother Lode

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    USS Wyoming (SSBN 742) on Patrol in the Atlantic (4K)
    okrajoe



    Published on Dec 16, 2017
    USS Wyoming SSBN 4k B-roll. HD Video by Austin Rooney | Defense Media Activity, Navy Production | 04.17.2017 -- 170417-N-RT381-001 (ATLANTIC OCEAN) - USS Wyoming (SSBN 742) takes part in a regularly-scheduled patrol in the Atlantic Ocean. B-roll shots include exteriors, interior shots, and general life onboard footage. (U.S. Navy video by Austin Rooney / Released.)

    More aviation videos at http://www.youtube.com/user/okrajoe

    Please visit our channel to subscribe.
     
  22. searcher

    searcher Mother Lode Found Site Supporter ++ Mother Lode

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    Stealth Submarines of Iran ( مخفیکاری زیردریایی ایران )
    jmantime



    Published on Dec 19, 2017
    Iranian Stealth Submarines
    Shahid Chamran Midget Submarine -
    Ghadir Class Submarine - https://defence.pk/pdf/threads/irania...
    Nahang Class - https://defence.pk/pdf/threads/irania...
    Besat Class Submarine - https://defence.pk/pdf/threads/irania...
    Tariq Class Submarine - http://www.hollilla.com/reader.php?ac...
    Al-Sabehat 15 SDV - https://www.globalsecurity.org/milita...
    https://defence.pk/pdf/threads/irania...
    https://shushpanzer-ru.livejournal.co...
     
  23. searcher

    searcher Mother Lode Found Site Supporter ++ Mother Lode

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    Saving Submariners Trapped Under The Sea | Forces TV
    Forces TV



    Published on Dec 23, 2017
    What happens when a submarine gets into trouble under the sea?
    Forces News has gained exclusive access to Exercise Northern Sun 17, one of the biggest tests the NATO Submarine Rescue System has ever faced.

    Watch Forces Stories every Wednesday at 18:00 (BST) exclusively on Forces TV (Freeview 96, Sky 264, Freesat 165 and Virgin 277).

    Read more: http://www.forces.net/news/navy/exclu...
    Subscribe to Forces TV: http://bit.ly/1OraazC
    Check out our website: http://forces.net
    Facebook: https://www.facebook.com/ForcesTV
    Twitter: https://twitter.com/ForcesNews
     
  24. searcher

    searcher Mother Lode Found Site Supporter ++ Mother Lode

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    WHAT HAPPENED TO ARGENTINIAN SUB, AND WHY ARE STEALTH SUBMARINES SO HARD TO FIND? || WARTHOG 2018
    Warthog Defense



    Published on Jan 3, 2018
    Ships, planes and underwater robots have been searching for the lost Argentinian submarine ARA San Juan for over a week. But modern stealth technology may be making the search even more difficult.

    http://www.dw.com/en/why-are-stealth-...
     
  25. searcher

    searcher Mother Lode Found Site Supporter ++ Mother Lode

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    SALVAGE OF A SUNKEN SUBMARINE U.S. NAVY TRAINING FILM 21174
    PeriscopeFilm



    Published on Jan 3, 2018
    The short U.S. Navy training film Submarine Salvage shows the process Navy salvage crews use to retrieve sunken submarines. USS Hoist ARS-40 is shown in operation in the film. The submarine shown being salvaged appears to be a WWII boat; the techniques shown probably would not work with a modern submarine due to the size of these vessels.

    The film begins with a submarine sinking and the rescue of the ship’s survivors. Rescuing survivors is the only goal immediately following the sinking of a submarine. Once all survivors are rescued, the Navy’s next objective is salvaging the ship (02:23). Specialized equipment is used by salvage forces (02:45); however, depending on the operation, different equipment and methods are required for a successful salvage operation. Regardless of the various factors, three basic principles or steps are consistent for salvaging submarines: prepare a salvage plan, rig for lift, and execute lift. The first, prepare a salvage plan, includes evaluating the environment, choosing an appropriate lifting method, and determining the required lifting force. Officers gather information they need to formulate their salvage plan, operating out of the shipyard where the sunken submarine was built (03:41), giving them access to the engineering plans and other details of the ship. The ocean bottom is taken into account as the ocean environment is examined. Depth plays a role as to what divers can accomplish, and weather is also a factor that must be considered. Planners must also know the state of submarine, which comes from interviews with survivors and communication records from the ship. Shipyard managers assist the planners in what needs to be done to make the sub airtight, if possible. A diver is then sent down (06:24) to survey the ship and gather on-the-spot information, most importantly whether the hull is partially buried or not. This allows for planners to determine the lifting method. The different lifting methods are: patch and pump (07:41), pontooning (08:30), self-lift, and lift ship (08:55). Patch and pump is the most common, but it requires the most diver time. Pontooning is the only practical way to lift in deep waters (up to max depths of 300 feet). Lift ship is usually only performed in shallow water. Depth and time requirements determine which method should be used. Lifting force (09:57) involves taking into account displacement and mud suction to calculate the lifting force required to raise the sub. The salvage ship moves out to prepare to raise the sub (11:06). The second step is to rig the sub for lift by placing wires under the hull. Sometimes tunneling is required to accomplish this. Divers can also set wires via lancing. A chain sling (13:38) is used to cradle the sub during lift. Prior to the lift, the sub is made to accommodate as much self-lift as possible. Divers prepare by rehearsing each step and conducting every test necessary on a sister ship (15:40) so they will know exactly what to look for and do. The third step is executing the lift (16:56), which can be done by raising with pontoons, by liftship (stern lift or bellylift), or by self-lift. Pontoons are moved into the water in preparation for lift (17:08). The submarine is gradually lifted over several stages of lifting to shallower depths. Lifting ships, such as YHLCs (19:16), the Navy’s heavy lift ships, can be used to pick up a sub. This must be done in pairs, and can lift via a bellylift or a stern lift. The submarine is lifted to the surface (28:06) during the salvage operation using a pontoon lift. Though the Navy’s increase in submarines comes with an increase in accidental sinking, well-planned salvage operations make it possible to retrieve sunken submarines and minimize Navy losses.

    USS Hoist (ARS-40) was a Bolster-class rescue and salvage ship acquired by the United States Navy during World War II. Its task was to come to the aid of stricken vessels. Hoist was launched 31 March 1945 by the Basalt Rock Company shipyard near Napa, California; sponsored by Mrs. William E. Howard; and commissioned 21 July 1945, Lt. Cmdr. R. M. Brunner in command.

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    This film is part of the Periscope Film LLC archive, one of the largest historic military, transportation, and aviation stock footage collections in the USA. Entirely film backed, this material is available for licensing in 24p HD, 2k and 4k. For more information visit http://www.PeriscopeFilm.com
     
  26. searcher

    searcher Mother Lode Found Site Supporter ++ Mother Lode

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    Amateur Built Submarine "Euronaut" - First Aid Training
    Deep Blue Sea



    Published on Jan 11, 2018
    Despite every car driver and most of the recreational divers in Germany visited a first aid course at least once in their lives, drills are necessary to make life saving in case of an accident more efficient. But no of these courses teaches how to handle and to transport an unconscious person in a very cramped space such as a submarine with narrow passages and hatches. The crew of Euronaut has to figure best rescue methods first. That most probable scenario is a diving accident. Valuable information has been gathered during this training, that lead to the overworked safety concept and a new equipped rescue case.

    Shot in August 2016

    "Euronaut" is a private project of a research and diver support submarine around Carsten Standfuss - a German naval architect. It has been designed between 1988 and 2000. Then it took another 12 years to build it on holidays, weekends and after work. Most systems on board are second hand and homebuilt.

    The sub has overall length of 16 m (52 ft), surface displacement of 57 tons and is capable of diving up to 250 m (820 ft).
    Transit speed is up to 6 knots with a 190 hp diesel engine. Electric drive measures 40 kW.
    The life support system provides air for the crew of six persons for a week. The diving chamber allows saturation dives to the depths similar to the operational depth of the submarine.

    https://www.facebook.com/euronaut.org/
    http://www.euronaut.org
     
  27. searcher

    searcher Mother Lode Found Site Supporter ++ Mother Lode

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    AMERICA'S NEW NUCLEAR MISSILE SUBMARINES MIGHT HAVE A PROBLEM || WARTHOG 2017
    Warthog Defense



    Published on Jan 11, 2018
    The Government Accountability Office is raising concerns about the technological maturity of the Columbia-class ballistic missile submarine.

    The new boomer, which must become operational by 2031, will feature a host of new technologies that are supposed to increase the vessels’ survivability into the foreseeable future. However, as the GAO notes, many of those features are unproven and no prototypes have been built or tested.

    By: Dave Majumdar

    http://nationalinterest.org/blog/the-...
     
  28. searcher

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    NEXT BIG SPENDING PROJECT for the US Military Columbia-class submarine the F-35 of the sea
    ArmedForcesUpdate



    Published on Jan 13, 2018
    The Columbia-class submarine, formerly known as the Ohio Replacement Submarine and SSBN-X Future Follow-on Submarine, is a future United States Navy nuclear submarine class designed to replace the Trident missile-armed Ohio-class ballistic missile submarines.[3] The first submarine is scheduled to begin construction in 2021 and enter service in 2031 (some 50 years after its immediate predecessor, the Ohio class, entered service).[4][5] From there, the submarine class will serve through 2085.[6]

    General characteristics[edit]

    Graphic artist concept (2012)

    Cutaway image
    Although still evolving, the following are some of the ship characteristics for the SSBN(X) design:[4][25]

    Expected 42-year service life (it is planned that each submarine will carry out 124 deterrent patrols during its service life)[26]
    Life-of-the-ship nuclear fuel core that is sufficient to power the ship for its entire expected service life, unlike the Ohio-class submarines, which require a mid-life nuclear refueling[13]
    Missile launch tubes that are the same size as those of the Ohio class, with a diameter of 87 inches (2,200 mm) and a length sufficient to accommodate a D-5 Trident II missile
    Ship beam at least as great as the 42-foot (13 m) beam of the Ohio-class submarines
    16 missile launch tubes[2] instead of 24 missile launch tubes on Ohio-class submarines. A recent report (as of November 2012) suggested that the boats will have 12 submarine-launched ballistic missile (SLBM) silos/tubes.[27] However, other sources do not support this.[28][29]
    Although the SSBN(X) is to have fewer launch tubes than the Ohio-class submarine, SSBN(X) is expected to have a submerged displacement about the same as that of Ohio-class submarines
    Also, the US Navy has stated that "owing to the unique demands of strategic relevance, [SSBN(X)s] must be fitted with the most up-to-date capabilities and stealth to ensure they are survivable throughout their full 40-year life span."[30]

    In November 2012, the U.S. Naval Institute revealed, citing Naval Sea Systems Command, additional design information:[29]

    X-shaped stern control surfaces (hydroplanes)
    Sail-mounted dive planes
    Electric drive
    Off-the-shelf equipment developed for previous submarine designs (Virginia-class SSNs), including a pump-jet propulsor, anechoic coating and a Large Aperture Bow (LAB) sonar system.
    The boats may also be equipped with a Submarine Warfare Federated Tactical System (SWFTS), a cluster of systems that integrate sonar, optical imaging, weapons control etc.[31][32][33]

    Electric drive[edit]
    Main article: Integrated electric propulsion
    Electric drive is a propulsion system that uses an electric motor that turns the propeller of a ship/submarine. It is part of a wider (Integrated electric power) concept whose aim is to create an "all electric ship".[34][35] Electric drive should reduce the life cycle cost of submarines while at the same time reducing acoustic signature.[36][37]

    Turbo-electric drive had been used on US capital ships (battleships and aircraft carriers) in the first half of the twentieth century.[38] Later on, two nuclear-powered submarines, USS Tullibee and USS Glenard P. Lipscomb, were equipped with turboelectric drive but experienced reliability issues during their service life and deemed underpowered and maintenance heavy.[39][40][41] Currently (as of 2013), only the French Navy uses turboelectric drive on its nuclear-powered Triomphant-class submarines.[42]

    Conceptually, electric drive is only a segment of the propulsion system (it does not replace the nuclear reactor or the steam turbines). Instead it replaces reduction gearing (mechanical drive) used on earlier nuclear-powered submarines.[34] In 1998, the Defence Science Board envisaged a nuclear-powered submarine that would utilise an advanced electric drive eliminating the need for both reduction gearing (mechanical drive) as well as steam turbines.[43]

    In 2014, Northrop Grumman was chosen as the prime designer and manufacturer of the turbine generator units.[44] Turbine generators convert mechanical energy from the steam turbines into electrical energy.[45] The electrical energy is then used for powering onboard systems as well as for propulsion via electric motor.[44][46]

    Various electric motors are being or have been developed for both military and non-military vessels.[47] Those being considered for application on future U.S. Navy submarines include: permanent magnet motors (being developed by General Dynamics and Newport News Shipbuilding) and a high-temperature superconducting (HTS) synchronous motors (being developed by American Superconductors as well as General Atomics).[47][48][49]

    More recent data shows that the US Navy appears to be focusing on permanent-magnet, radial-gap electric propulsion motors (e.g. Zumwalt-class destroyers use an advanced induction motor).[50] Permanent magnet motors are being tested on the Large Scale
     
  29. searcher

    searcher Mother Lode Found Site Supporter ++ Mother Lode

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    Art Bell interview with a former submarine radio communications officer
    Curt Rowlett



    Published on Jan 13, 2018
    Art Bell is a licensed ham radio operator, call sign W60BB. Here is an excerpt from an October 22, 1997 interview that Art conducted with a former nuclear submarine radio communications officer ("Officer X") who tells the frightening story of how a chain of radio communication failures and accidents almost caused the unthinkable.
     

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