Newb with stringer question

Discussion in 'Fiberglass and Composite Boat Building' started by Shinchan, Mar 27, 2009.

  1. Shinchan
    Joined: Feb 2007
    Posts: 5
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    Location: Hononlulu,HI

    Shinchan Junior Member

    Aloha! I just salvaged an old Seaswirl P-14 hull that I was thinking of rebuilding. It is just the hull with no floor, stringers or cap. Just the fiberglass shell so I can't get a stringer shape. How would I go and put stringers in to make it fit? :?: Is there some sort of way to get a pattern- something like a tick stick method? :confused: Mahalo for any info, Randy
     
  2. Landlubber
    Joined: Jun 2007
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    Location: Brisbane

    Landlubber Senior Member

    Shinchan,

    No tick sticks are for bulkhead etc, the stringers are simply following, often a waterline, such as when used for cockpit sole levels.

    A 14 footer will not use a lot of undersole reinforcement, if you make a few transverse frames and a apir of longitudinal beams parallel to the centreline, about 3 feet apart, you will be close. Go have a gander at similar boats in yards to get the idea, it will not be too difficult for you. The beams can be made hollow, just formed up over a simple mould of 4x2s.
     
  3. Shinchan
    Joined: Feb 2007
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    Location: Hononlulu,HI

    Shinchan Junior Member

    So the beams can lie directly on the hull? Or would that create a hard spot? How do I cut it so it follows the curvature of the hull while keeping it level with the floor height? Should I rough cut it, tab it in place and then plane it down to height? Sorry for so many questions. I saw this process done as a kid with a plumb bob and a level but I wasn't really paying attention (hey at 12, I just wanted to fish...) :p Mahalo again, Randy
     
  4. alan white
    Joined: Mar 2007
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    Location: maine

    alan white Senior Member

    After levelling the boat, you can set a straight board on edge, level, along the line of a stringer or transverse frame at the desired sole level. A pair of dividers or a short stick held vertically is then used to transfer the curvature or angle, using a pencil. If you tack paper to the board beforehand, you can make a pattern for every piece, from longest to shortest, cutting the same board until you've got patterns of every piece.
     

  5. Shinchan
    Joined: Feb 2007
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    Location: Hononlulu,HI

    Shinchan Junior Member

    Sounds good, I'll try that! If not, well, back to the grinder..;)
     
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