JunkFoil

Discussion in 'Hydrodynamics and Aerodynamics' started by Andrew Fournier, Mar 24, 2026.

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  1. Andrew Fournier
    Joined: Mar 2026
    Posts: 12
    Likes: 2, Points: 3
    Location: Alaska

    Andrew Fournier Junior Member

    Working on it. Not my strong suit. The only novelty is shaped mast rings- and really the only issue I'd worry about yet is height to prevent jamming and still stacking well enough. The external batten is from aerojunk. Laced sail panels are easy to imagine? The reefing system just brings us back to the shaped mast rings ( maybe even pull needs tweaking). This is simplified from a reefable skinned wing with depth created by junkfoil style batten arms. That seems viable,just more complicated - and no one was interested anyway
     
  2. gonzo
    Joined: Aug 2002
    Posts: 18,258
    Likes: 2,369, Points: 123, Legacy Rep: 2031
    Location: Milwaukee, WI

    gonzo Senior Member

    Unless you want a hobby and learn how to build a boat, used small sailboats can be bought for $500 in fair condition. Spring started, buy one and get on the water.
     
    Andrew Fournier likes this.
  3. Andrew Fournier
    Joined: Mar 2026
    Posts: 12
    Likes: 2, Points: 3
    Location: Alaska

    Andrew Fournier Junior Member

    Yeah. Ideally. I might have to use a cart til I move. The water here in Alaska is very cold, and currently frozen. Though I guess this would work on an ice boat test platform
     
  4. gonzo
    Joined: Aug 2002
    Posts: 18,258
    Likes: 2,369, Points: 123, Legacy Rep: 2031
    Location: Milwaukee, WI

    gonzo Senior Member

    Check Facebook marketplace. There is a free boat in Seaward
     
  5. Andrew Fournier
    Joined: Mar 2026
    Posts: 12
    Likes: 2, Points: 3
    Location: Alaska

    Andrew Fournier Junior Member

    I think maybe a balsa model before I rebuild a boat? The stuff that needs testing is reefing/the mast rings. Building a section to scale would confirm the mechanisms. The math on a foil isn't really a worry. Also I really don't want a boat in Seward. 1 more summer then I'm moving someplace that isn't a Klingon prison planet for 5 months a year :) Balsa is probably easier than drawings, too
     
  6. Skip Johnson
    Joined: Feb 2021
    Posts: 278
    Likes: 156, Points: 43
    Location: Lake Tenkiller, Ok, usa

    Skip Johnson Senior Member

    Cardboard and dowels would suffice I think. Make it as large as is reasonable for your situation to minimize scale effects. I'm currently suffering the results of this in the other direction; a mechanism that worked fine cobbled up with stuff laying around doesn't work near as well scaled down to desktop 3D printed bits.
     

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