Latest News: Forums Technical Bouyancy Testing & Hatch Sealing

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  • #3434
    PeterW3035
    Member

    I have seen an article “Buoyancy Testing without Tears” by Alex Crook which was originally in Wayfarer News. There is a link that I have found on the Parkstone Wayfarers site but it doesn’t work.

    Does anyone know where I can find a copy?

    Thanks
    Peter
    W3035

    #5153
    pjair
    Member

    I don’t know of the article you refer to but there is a bit about bouyancy testing in the Wayfarer book (page 17). I have made the dry testing device described with a length of 5mm plastic pipe from B&Q mounted on a piece of wood as shown (in the book). Drilled out a couple of old bungs to pass the pipe through for the rear tank, got an old inspection hatch cover again drilled for the forward tank and used an old bellows style pump to pressurise with thereby saving my lungs. It works a treat. Thoroughly recommend the Wayfarer book.

    #5158

    There are also a few useful comments by Ray Scragg on pages 4-5 of Wayfarer News issue 106 (summer 06) to supplement the description given in the W Book.
    Well worth buying a copy of the Wayfarer book for this and much other information on getting the best out of your Wayfarer – contact Sarah to purchase.

    #5223
    Anonymous
    Inactive

    Peter wrote…

    > I have seen an article “Buoyancy Testing without Tears” by Alex Crook which was originally in Wayfarer News. There is a link that I have found on the Parkstone Wayfarers site but it doesn’t work.

    Link to http://www.parkstonewayfarers.org.uk/BuoyancyTestwithTears.html fixed – apologies for that!

    Richard, Parkstone Wayfarer webmaster

    #5226
    PeterW3035
    Member

    Thanks Richard for sorting out the link. I managed to find the original article in my Wayfarer News archive.

    It is a very good article that hopefully will help others tryng to sort out hatch sealing and testing.

    Regards
    Peter
    W3035

    #5292
    gpsmout
    Member

    Hi

    Where did the actual clips and aluminium bits and bats t(shown in the article) come from?

    Unless you are near a chandlers or specialist they can be hard to find.

    Graham Smout

    #5296
    PeterW3035
    Member

    After searching for the ss turnbuckles I bought them from Porters. Seems unfortunate that they are apparently saying that there is not enough demand.

    I then converted the original tufnol bases and made some hard pvc washers to get the height right. I also reused the four original tufnol tapering striker pieces that have proved far better than the ss striker from Porters.

    The front edge of the hatch was secured with Protex fasteners http://www.protex.com/ProductsBycategory.asp?intCatalogID=59&L=2&strCatalog_NAME=Light%20Duty%20Spring%20Claw%20%20Fasteners%20&GI=0&GIU=/imagename.jpg&GIA=

    Check out the other posting on Woodie hatches that also has some details.

    There seems to be a whole host of methods to fasten the wooden hatches, I will post some photos of my solution if you are interested.

    Regards Peter
    W3035

    #5297
    gpsmout
    Member

    Hi thanks for the reply; I’m not just interested in this topic, I’m desperate! Basically i dare not sail my boat unless the hatches are sealed. The original method on my boat could not have been satisfactory; it was two bungee straps tied to the underside of the hatch cover and to the bottom of the hatch space. The watertight seal was made of hard cork strip.

    So last year a screwed a length of mahogany bar to the under side of the aft of the hatch cover, so that it protruded each side and gripped under the lip either side of the hatch opening; sealed with soft neoprene strip, and used protek fasteners on the front.

    This was still no good I’m afraid, as the protek fasteners came undone at the slightest opportunity and the protruding bar has damaged the integrity of the hatch opening space and the hatch itself. I’m resigned to remaking the hatch cover from mahogany ply but I want an effective system that will seal the whole thing in place.

    Regards

    Graham

    #5299
    Anonymous
    Inactive

    Hi Graham…..noting your desperation! You are probably aware of this but as a totally short term solution you could load your rear locker with empty soft drinks bottles, plastic footballs etc ……….as for your cam issue on the other posting I have to exert downward pressure on the hatch into the seal before twisting the catch accross (ie I don’t think there are any cam type forces, but this is mk2 fibreglass so rest of the issues don’t apply). Good luck with the repairs.
    Dave

    #5300
    Anonymous
    Inactive

    Dave Mac wrote…

    > as a totally short term solution you could load your rear locker with empty soft drinks bottles, plastic footballs etc

    IMHO the rear buoyancy tank needs to fully effective in the event of a capsize. If the tank were filled with plastic bottles etc there would still be room for a considerable volume of water. If the tank isn’t fully effective then it becomes impossible to bail water out of the boat as the rear deck will be awash.

    Rubber gaskets for buoyancy tanks are available from http://www.cherryschandlery.co.uk/ (in Bournemouth). Might be worth enquiring there for fasteners.

    Richard

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