Recent Content by AlanX

  1. AlanX
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    So who makes or has made a ship or boat model from wood/sctratch-built,etc?

    @Howlandwoodworks, Now your model is a work of art. I am rather ashamed to have presented my work. I can only console myself as a first attempt I...
    Post by: AlanX, Aug 8, 2022 in forum: Boat Design
  2. AlanX
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    So who makes or has made a ship or boat model from wood/sctratch-built,etc?

    Here is a hull I put together to check for design flaws (and yes it failed): [ATTACH] [ATTACH] [ATTACH] I am trying to develop lines for the...
    Post by: AlanX, Aug 3, 2022 in forum: Boat Design
  3. AlanX
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    Need help with angles and radius of sponson

    Hi Steve, I note there was a previous discussion on hyroplane sponson design (with a design concept): Sponson Design...
    Post by: AlanX, Jul 6, 2022 in forum: Boat Design
  4. AlanX
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    Need help with angles and radius of sponson

    Hi, Someone may have exactly what you want, but if not, then you will need to design your own. You could try trial and error with paper, scissors...
    Post by: AlanX, Jul 5, 2022 in forum: Boat Design
  5. AlanX
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    An Old Worn Out Boat, Prime Candidate for Cold Molding?

    Hi @WhiteRabbet, When it comes to the time that you commit to spending your dollars, I think it would be a very good idea to confirm the...
    Post by: AlanX, Jun 30, 2022 in forum: Wooden Boat Building and Restoration
  6. AlanX
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    An Old Worn Out Boat, Prime Candidate for Cold Molding?

    Hi @WhiteRabbet, A Tc of 4ft is perfect with regard to typical hull coefficients. The mid-section hull bottom design pressures are now: 26.4 kPa...
    Post by: AlanX, Jun 30, 2022 in forum: Wooden Boat Building and Restoration
  7. AlanX
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    An Old Worn Out Boat, Prime Candidate for Cold Molding?

    Hi @WhiteRabbet, Not clear if the measurement is vertical or slope, Tc is a vertical measurement....
    Post by: AlanX, Jun 29, 2022 in forum: Wooden Boat Building and Restoration
  8. AlanX
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    An Old Worn Out Boat, Prime Candidate for Cold Molding?

    Hi @WhiteRabbet, 5'3" is what I was looking for, 8'3" was an obvious typo. Okay: LOA 16.77m LWL 14.17m BOA 4.58m BWL 4.29m TC 1.60m Disp...
    Post by: AlanX, Jun 28, 2022 in forum: Wooden Boat Building and Restoration
  9. AlanX
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    An Old Worn Out Boat, Prime Candidate for Cold Molding?

    Hi @WhiteRabbet, The TC is too large for 28 ton or the 28 ton is too low, and is that a short or long ton? I work in metric tonnes. Tc is the...
    Post by: AlanX, Jun 24, 2022 in forum: Wooden Boat Building and Restoration
  10. AlanX
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    Decent way of getting lift coefficient and drag coefficient for game design

    Hi @Bishiba, Here are a set of simplified (i.e. does not model stall) equations for a NACA 0012 aerofoil used to model a wing (excluding skin and...
    Post by: AlanX, Jun 23, 2022 in forum: Hydrodynamics and Aerodynamics
  11. AlanX
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    Skin on frame scantlings

    Here is a skin of frame I saved from the Internet a long time ago: [ATTACH] Pretty cool really, AlanX
    Post by: AlanX, Jun 8, 2022 in forum: Boat Design
  12. AlanX
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    Skin on frame scantlings

    Stress! What else?
    Post by: AlanX, Jun 7, 2022 in forum: Boat Design
  13. AlanX
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    Skin on frame scantlings

    The following webpage discusses this problem: Membranes | Engineering Library...
    Post by: AlanX, Jun 7, 2022 in forum: Boat Design
  14. AlanX
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    Can the contour surface of a ship be represented by a mathematical function?

    @Tanal, I don't disagree, I am answering the @sun's question. AlanX
    Post by: AlanX, Jun 7, 2022 in forum: Stability
  15. AlanX
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    Can the contour surface of a ship be represented by a mathematical function?

    If we step back, we have a hull function Fhull(x,y,z) and a Fwaterplane (x,y,z). The water plane factors A, B, C and D can be calculated for a...
    Post by: AlanX, Jun 6, 2022 in forum: Stability