Loss of Ship's Anchor

Discussion in 'The Okie Corral' started by Jade Falcon, Jan 9, 2017.

  1. Jade Falcon

    Jade Falcon WTF EREN?!

    Messages:
    11,661
    Likes Received:
    10,119
    Joined:
    Aug 2, 2004
    Location:
    Vancouver, WA.
    Some pretty wild stuff.



    Can any ship-knowledgable people here tell us what it is that they are cranking by hand? It looks like a brake of some sort....?

    And how do ship anchors work? I always assumed that they sat on the bottom of the sea-bed to effectively "mount" the ship in place.

    Here's another one. Far more spectacular.



    This one seems to have stopped at the end:



    Apparently, a 1st Lt was trying to show off but almost managed to lose the entire thing. According to the description:



    Taken in 2008 aboard the USS George Washington.

    I imagine that was worth an ass-chewing or two.
     
  2. Gunboat1

    Gunboat1 A.F.&A.M.

    Messages:
    3,453
    Likes Received:
    2,281
    Joined:
    Dec 28, 2002
    Location:
    The Old Dominion, Red Section
    The hand crank is for a friction brake on the chain wildcat. The name is self explanatory if you watch the video. Dangerous stuff.

    Anchors work by digging into the sea bed, but having a long length of chain out does most of the work- usually 5-7 times the water depth, more if weather or bottom composition are poor. That is called "scope." The chain and anchor hold the ship in a general location, but allow it to swing in a circle as tide and wind change.
     
    Last edited: Jan 9, 2017
    Fred Hansen likes this.

  3. Jade Falcon

    Jade Falcon WTF EREN?!

    Messages:
    11,661
    Likes Received:
    10,119
    Joined:
    Aug 2, 2004
    Location:
    Vancouver, WA.
    Thanks for that! Indeed, I've learned something today.

    ETA: So when the anchor is lost, does that mean the brake fails, or is the seabed deeper than the length of the chain?
     
  4. Gunboat1

    Gunboat1 A.F.&A.M.

    Messages:
    3,453
    Likes Received:
    2,281
    Joined:
    Dec 28, 2002
    Location:
    The Old Dominion, Red Section
    You're most welcome.
     
  5. aircarver

    aircarver Descent Terminated Silver Member

    Messages:
    32,842
    Likes Received:
    13,539
    Joined:
    May 26, 2002
    Location:
    Ft. Worth, Republic of Texas
    So with no nautical background, it appears to me that after a certain length of chain, the friction brake overheats, catches fire, and fails ! :wow:
    I assume a hydraulic motor hauls the chain up, why can't it be throttled to do the work of retarding it going out. The friction brake can then be redundant clamp up.
     
    Jade Falcon likes this.
  6. Wishoot

    Wishoot

    Messages:
    3,103
    Likes Received:
    4,300
    Joined:
    Aug 13, 2010
    Location:
    Milwaukee
    Many years of boating taught me that Ship Happens whenever you pull out of dock.
     
    Fred Hansen and SJ 40 like this.
  7. Sgt127

    Sgt127

    Messages:
    5,544
    Likes Received:
    8,171
    Joined:
    Nov 5, 2002
    Location:
    Texas
    I can't imagine the sound of that in a steel room.

    Like listening for problems in a Vulcan gun with a stethoscope.
     
    Fred Hansen likes this.
  8. J. Gambolputty

    J. Gambolputty

    Messages:
    924
    Likes Received:
    2,249
    Joined:
    Aug 27, 2015
    Location:
    Eastern NC
    They should tie a knot on the end of those things.;)
     
    Fred Hansen and Cubdriver like this.
  9. Jade Falcon

    Jade Falcon WTF EREN?!

    Messages:
    11,661
    Likes Received:
    10,119
    Joined:
    Aug 2, 2004
    Location:
    Vancouver, WA.
  10. kirgi08

    kirgi08 Watcher. Silver Member

    Messages:
    39,284
    Likes Received:
    8,601
    Joined:
    Jun 4, 2007
    Location:
    Acme proving grounds.
    Thought so.'08.
     
  11. Binge&Purge

    Binge&Purge Making B&P Great Again

    Messages:
    7,286
    Likes Received:
    13,348
    Joined:
    Oct 30, 2001
    Location:
    Kept Algore out of the White House
    I think that is a triple jambog. You jambogged a jambog.
     
    Bruce M, Jade Falcon and TScottW99 like this.
  12. Steel Head

    Steel Head Tactical Cat

    Messages:
    32,814
    Likes Received:
    85,244
    Joined:
    Jan 1, 2010
    Location:
    A cat box in WA
  13. kirgi08

    kirgi08 Watcher. Silver Member

    Messages:
    39,284
    Likes Received:
    8,601
    Joined:
    Jun 4, 2007
    Location:
    Acme proving grounds.
    No anime/soup for you.'08. :rant:
     
    Jade Falcon and Steel Head like this.
  14. Jade Falcon

    Jade Falcon WTF EREN?!

    Messages:
    11,661
    Likes Received:
    10,119
    Joined:
    Aug 2, 2004
    Location:
    Vancouver, WA.
    [​IMG]
     
    Fred Hansen likes this.
  15. kirgi08

    kirgi08 Watcher. Silver Member

    Messages:
    39,284
    Likes Received:
    8,601
    Joined:
    Jun 4, 2007
    Location:
    Acme proving grounds.
  16. Jade Falcon

    Jade Falcon WTF EREN?!

    Messages:
    11,661
    Likes Received:
    10,119
    Joined:
    Aug 2, 2004
    Location:
    Vancouver, WA.
    You can't drink your way out of this!
     
    Bruce M likes this.
  17. kirgi08

    kirgi08 Watcher. Silver Member

    Messages:
    39,284
    Likes Received:
    8,601
    Joined:
    Jun 4, 2007
    Location:
    Acme proving grounds.
    Youse bogged yerself into this,not I.'08.
     
    Jade Falcon likes this.
  18. cowboywannabe

    cowboywannabe you savvy?

    Messages:
    23,474
    Likes Received:
    8,349
    Joined:
    Jan 26, 2001
    in the best weather conditions you need at least three times the anchor chain as the water depth. this breaks down to equal parts of the lay, the rise, and the chafe.
     
    Fred Hansen and Jade Falcon like this.
  19. itisbruno

    itisbruno Devious Member CLM

    Messages:
    40,448
    Likes Received:
    42,793
    Joined:
    Mar 6, 2005
    Location:
    Raccoon City
    On a much smaller scale ... I hate it when my anchor gets fouled. I cannot holdmy breath as long as I could when I was a kid ... had to start carrying spare air on the boat.

    [​IMG]
     
    Fred Hansen likes this.