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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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    S.W. Florida
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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 02:07 PM.

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    “What use is a house if you haven’t got a tolerable planet to put it on?”


    ~~~ Henry David Thoreau

  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
    Join Date
    Aug 2015
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    Modesto, CA
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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 door was ajar, and the game was afoot." Lawrence Block

  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
    Join Date
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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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    613

    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
    Dec 2001
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    Northern NSW Australia
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    63,236

    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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