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Thread: Best way to flip a hull?

  1. #1
    Join Date
    Mar 2010
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    Default Best way to flip a hull?

    This is the hull..

    IMG_3070 by Fredrik Ekström, on Flickr

    She will be transported outside, flipped and draged back into the shop. I prefer to work with a small crew (one or two assistans).

    Looking at youtube, there seems to be a couple of alternatives that all work. I've acquired a couple of sheets of OSB (scrap ply) and plan to build two semicircles around the hull. Is that a wise way forward?

    Appreciate comments and suggestions!

    /Fredrik

  2. #2
    Join Date
    Aug 2013
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    Default Re: Best way to flip a hull?

    It worked for Gannon & Benjamin, on Martha's Vinyard. Story & photos in Ruhlman's "Wooden Boats"

    Last edited by sharpiefan; 08-08-2017 at 03:07 PM.

    Hope the voyage is a long one.
    May there be many a summer morning when,
    with what pleasure, what joy,
    you come into harbors seen for the first time...

    Ithaka, by Cavafy
    (Keeley - Sherrard translation)

  3. #3
    Join Date
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    Default Re: Best way to flip a hull?

    Not a bad way to go.You could also seek out John Guzzwell's book which includes very similar information,as well as much other stuff.

  4. #4
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    Default Re: Best way to flip a hull?

    That's how I would approach it -- but I'd be cautious enough to include provision for intermediate stops in the event the flip got away from me.
    "The future is already here — it's just not very evenly distributed." William Gibson

  5. #5

    Default Re: Best way to flip a hull?

    I don't profess to know the "best" way but here are two ways that worked for me.

    In both flips the hull lands gently on old used car tires that I acquired for free from the local tire shop.

    Also in both cases, after the flip the boat ends up on a wheel dolly so I can wheel it back into the shop after flipping.



    This first method made use of my mates from work. They were paid with a free lunch. The wheel dolly is attached to the hull prior to flipping.













    This second flip I did myself with the help of my truck. What is not visible are the two come-alongs on the far side of the boat, anchored to trees, that prevent the boat from flipping too far too fast. The truck pulls until the come-alongs are tight. Then I let a few inches out of the come-alongs and pull a few more inches with the truck. I "walked" the boat over in this fashion. Again, landing on tires.








    The wheel dolly was assembled underneath the hull after flipping.


  6. #6
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    Default Re: Best way to flip a hull?

    This seems the most sophisticated method I've seen, a lot of work to build the jig but certainly effective.

    '' You ain't gonna learn what you don't want to know. ''
    Grateful Dead

  7. #7
    Join Date
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    Sweden
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    Default Re: Best way to flip a hull?

    Thanks for the input and suggestions!

    The hull is just a shell, no internal structure and I believe the last example (by Peter) is the least stressful way to do it.

    No reason so overthink this!

    I will report back when it's time!

    /F

  8. #8
    Join Date
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    Default Re: Best way to flip a hull?

    One from Paul Fisher's (designer) Face Book page

    '' You ain't gonna learn what you don't want to know. ''
    Grateful Dead

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