CNC Plans not Included

Discussion in 'Multihulls' started by jorgepease, Sep 19, 2016.

  1. redreuben
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    redreuben redreuben

    If your rudders are daggers in cases you can lift them to suit depth.
     
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  2. waikikin
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    waikikin Senior Member

    ...... & if those dagger rudders actually had a T foil and propulsion incorporated you would have a Rudder Incorporated Propulsive Lifting Enabled T Foil...
    ...otherwise known as Redreuben's R.I.P.E.L.T.Foil & so includes Rip for fast & Ripe for just waiting to take world by storm and Pelt for pelting along like fast and foil for cool...
    You would be a world leading pioneer of combining concepts already in use but be able to advise all that may have a vague interest in the coolness of it.
    Well Done.
    From Jeff
     
  3. redreuben
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    redreuben redreuben

    Then I could post on forums in red text and make claims like "never before done in the history of humanity"

    I like it. ;)
     
  4. jorgepease
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    jorgepease Senior Member

    All is possible, I think the side pods would be a simpler and hardier solution plus keeps weight in the middle. A 50' cat will need larger than 4kw motors. When I anchor up for days or weeks, I will just slip a plastic bag over the pod to thwart fouling.
     
  5. brian eiland
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    brian eiland Senior Member

    I am just now reading thru this subject thread, and I am only on page one, so please excuse me if this is mentioned in later pages.

    Have you looked at the Derek Kelsall methods of flat panel, on a table infusion methods?
    http://www.kelsall.com/TechnicalArticles/SummaryOfArticles.htm

    Derek has been a very long proponent of foam cores, but many foams don't hold up in deck structures exposed to big sunlight heat, and there are some mild problems with skin adhesion in some cases of brittle foams, etc.

    I've come back to looking more closely at the old Nidacore ideas. This is after studying a number of successful projects utilizing these PP type cores, and some of Nigel Iren's observations about the need for more 'ductility' in the sandwich core constructions.

    Here is one 'polycore' construction I found quite interesting (attached PDF as their website has been removed)
     

    Attached Files:

  6. brian eiland
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    brian eiland Senior Member

    Picnic/Weekender Cat

    http://www.boatdesign.net/forums/powerboats/weekender-picnic-powercat-33751.html

    http://www.boatdesign.net/forums/powerboats/weekender-picnic-powercat-33751-2.html
    BTW, there were 2 of these built in Thailand for the day charter business, wood construction.
    I have in mine a slightly smaller version built in 'polycore panels',...as an alternative shallow water fishing/diving/exploring vessel for Jimmy Buffett (as opposed to that deep draft mono he is having built).
     
  7. brian eiland
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    brian eiland Senior Member

    KSS building system,...no expesive molds

    KSS stands for Kelsall Swiftsure Sandwich.

    http://www.trawlerforum.com/forums/showpost.php?p=175507&postcount=109

     
  8. brian eiland
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    brian eiland Senior Member

    ...more from the construction of a 'Great Gatsby' trawler canal boat

     
  9. brian eiland
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    brian eiland Senior Member

    http://www.trawlerforum.com/forums/showpost.php?p=180121&postcount=137

     
  10. brian eiland
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    brian eiland Senior Member

    ...from that trawler build discussion...

     
  11. brian eiland
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    brian eiland Senior Member

    KSS building process.....a first hand account
    Take into consideration these two postings, and then read a first hand account of a fellow (JAM) who just recently attended one of Kelsall's workshops

    PS:.... from a multihull forum
     
  12. brian eiland
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    brian eiland Senior Member

    Sorry for the overload of info, I just got back to looking thru that lengthy subject thread I did on the Pilgrim trawler redesign effort.
     
  13. brian eiland
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    brian eiland Senior Member

    Do you have another reference to that Green Cove Springs build? I live very nearby that place now, ....and entertained the idea of building over there on that big industrial piece of property
     
  14. jorgepease
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    jorgepease Senior Member

    Hey Brian,

    I really like corecell and Gurit epoxy, it's proving itself on my flats boat to which I show little mercy. I used, I think, the 5lb density everywhere, hull and decks and so far no issues with pounding seas or heat and mine sits in the sun all day long.

    I'm curious to see what the price is for corecell in Thailand. I don't know what polycore is, I'm open to all local materials but the designer will ultimately have to approve. Also I've done so much testing with corecell that the comfort I have working with it is worth a few extra bucks.

    I looked at the KSS system, It's def a smarter, quality way to build for many people. The bulkheads and other components of my build would def be infused on a table, as a stack, with caul plate, as Groper mentioned. Other components would be infused into smaller molds, top of hulls, bimini etc...

    However I am def stuck on infusing both hulls and bridgedeck in one shot because I think most people lose sight of how much time is wasted setting up and breaking down infusions, moving materials and infused components around and just switching gears in repetitive work.

    Then again, most home builders can't take advantage of a production style work flow for many reasons - $money, space, equipment (hoists) etc... I am fortunate to have the budget up front.

    Looking forward to this! Hopefully building over there will make sense!!
     

  15. brian eiland
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    brian eiland Senior Member

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