Skiff 12'

Discussion in 'Wooden Boat Building and Restoration' started by TANSL, Jun 28, 2019.

  1. TANSL
    Joined: Sep 2011
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    Location: Spain

    TANSL Senior Member

    Available the construction plans. Adaptable interior.
    skiff 12 feet.jpg
    06/29/2019 edition: modified data
     
    Last edited: Jun 29, 2019
  2. Angélique
    Joined: Feb 2009
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    Location: Belgium ⇄ The Netherlands

    Angélique aka Angel (only by name)

    Plans available where ?

    Since when is this a skiff, since it looks like a scow or pram to me ?

    " T " is that the draft ? - If so, why does the 3" (= 76.2 mm) [90 ?] dimension line not run along the underside of the keelson ?

    12' and weighting 80 kg (176.4 lbs) of mostly plywood, where's all that weight hidden ? - Which hull thicknesses is this all about ?

    12' = 3,658 mm, what's [4,389 (mm ?) / 14.4' / 14' 4 51⁄64"] ? - To what units are the [....] translated ?
     
    Last edited: Jun 28, 2019
  3. Angélique
    Joined: Feb 2009
    Posts: 3,002
    Likes: 310, Points: 83, Legacy Rep: 1632
    Location: Belgium ⇄ The Netherlands

    Angélique aka Angel (only by name)

    How come a 1962 plywood Mirror dinghy (45.4 kg - 100 lbs) with more displacement* weighs just over half of the post #1 design ?

    * designed for 2 crew makes me guess it has more than 104 kg (229 lbs) carrying capacity, the 1990s plywood version of the sailing Miracle dinghy for 1-4 crew weighs 59 kg (130 lbs).

    [​IMG]
    — Mirror dinghy — large pic


    — Miracle Dinghy — specs

    Well I can see the reason, the abundant built in flotation of the interior also structural supports the hull in the Mirror and Miracle, I'm just wondering who wants the post #1 80 kg (176 lbs) boat with only 104 kg (229 lbs) carrying capacity, probably to be deducted by a motor or sailing rig and oars ?
     
    Last edited: Jun 28, 2019
  4. Angélique
    Joined: Feb 2009
    Posts: 3,002
    Likes: 310, Points: 83, Legacy Rep: 1632
    Location: Belgium ⇄ The Netherlands

    Angélique aka Angel (only by name)

    Oh, I'll guess the lower dimension lines for the draft and hull depth are interchanged, anyway all that messing up doesn't make clear at all what's meant, so it looks to me like a disaster to build, such as like the mentioned figures also do not translate to each other.

    I'm just reviewing my own questions and try to answer them myself, if you don't mind me doing so, but so far I've maybe only got one, so I'm stuck with the rest for now. Maybe the other posted pram dinghies here give some inspiration to work it out further ?
     
    Last edited: Jun 28, 2019
  5. Deering
    Joined: Feb 2005
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    Location: Juneau, Alaska

    Deering Senior Member

    Looks to me like the draft is 5”. The side elevation drawing shows the sheer to the WL as 1’-5 3/4”. Forward elevation shows the sheer to bottom of the keelson as 1’-10 3/4”.

    Not sure what T represents but my guess is that’s the bottom of the plywood hull, meaning that the keelson is 2” tall.

    Just my guesses...
     

  6. TANSL
    Joined: Sep 2011
    Posts: 5,546
    Likes: 160, Points: 73, Legacy Rep: 300
    Location: Spain

    TANSL Senior Member

    Deering, you're right and thank you very much for your warning. I have corrected the drawing, clarifying the information contained therein.
     
    Last edited: Jun 30, 2019
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