Your worst nightmare--here!!

Discussion in 'All Things Boats & Boating' started by Frosty, Dec 2, 2009.

  1. Frosty

    Frosty Previous Member

  2. boat fan
    Joined: Sep 2008
    Posts: 717
    Likes: 17, Points: 18, Legacy Rep: 435
    Location: Australia

    boat fan Senior Member

    OOOh I hope.
  3. WestVanHan
    Joined: Aug 2009
    Posts: 1,374
    Likes: 56, Points: 0, Legacy Rep: 746
    Location: Vancouver

    WestVanHan Not a Senior Member

    Theres that famous pic of a Marquis that blew a front strap,and you see the bow cleaving the water with a guy on the stern

    I saw a movie online a couple years ago, a yacht is being lifted on the slings.

    You see the engines and drives falling through the hull,and the whole boat literally breaks into pieces and disintegrates.
    Methinks it was a balsa cored yacht and quite saturated.

    After the splashes and drama, all there is left is a whack of tiny pieces of boat,pieces of wood,clothes,and pillows floating around.

    Not on youtube.
  4. alan white
    Joined: Mar 2007
    Posts: 3,731
    Likes: 122, Points: 0, Legacy Rep: 1404
    Location: maine

    alan white Senior Member

    It really is reassuring that sailboats have keels between those slings.
    On the bright side, if the boat survived the drop intact, it might do well dropping off a wave too. Maybe all boats should be drop tested?
  5. boat fan
    Joined: Sep 2008
    Posts: 717
    Likes: 17, Points: 18, Legacy Rep: 435
    Location: Australia

    boat fan Senior Member

    Maybe BEFORE being sold to customers .......:D
  6. Frosty

    Frosty Previous Member

    I have heard from those that know that lifting with 2 cranes is not correct.

    The clip shows that one driver lowered the sling on his crane only, causing the sling to slide. You can hear some one shouting.

    I have a friend who lost his yacht in exactly the same way, using 2 cranes. One crane followed him into the sea falling on top of his yacht.

    I am not a crane driver but I can't see why it should be so iffy. But it would seem common sense to keep both cranes synchronized.

    If the cranes were not big enough and 2 was necessary a spreader frame arrangement should have been used.
  7. Luckless
    Joined: Mar 2009
    Posts: 158
    Likes: 7, Points: 18, Legacy Rep: 105
    Location: PEI, Canada

    Luckless Senior Member

    This isn't a video about why you don't use two cranes. This is a video about why you don't use two cranes with poor communication and control.

    At least it is one way to test if your new boat self rights.

  8. dskira

    dskira Previous Member

    And obviously this one don't :p
Forum posts represent the experience, opinion, and view of individual users. Boat Design Net does not necessarily endorse nor share the view of each individual post.
When making potentially dangerous or financial decisions, always employ and consult appropriate professionals. Your circumstances or experience may be different.