Developed New Type of Soft Wing Sail: Wing'soul

Discussion in 'Hydrodynamics and Aerodynamics' started by mfly, Feb 9, 2021.

  1. mfly
    Joined: Nov 2015
    Posts: 4
    Likes: 0, Points: 1, Legacy Rep: 10
    Location: romania

    mfly New Member


    During the summer of 2020, I developed a new type of wing sail. I was thinking about a new type of sail that would be ideal for a cruiser ever since I bought my boat, in 2016.

    I made a small trial sail as a prototype. The major obstacle was testing the rig, as I do not have a sailing dinghy, and there are few sailboats around where I am based (eastern Romania).

    Check out the Instructable, if you want full details on this rig.

    Wing’soul. Easiest to Build Wing Sail.

    * Wing sail that requires NO rotating mast
    * No articulating hinge for camber control or tacking
    * Flat cut mainsail and jib; a first timer can tackle the sailmaking
    * Reduced mast turbulence; better slot effect
    * Has all the great properties of a junk rig: docile handling, sea worthy, easy to reef, great twist control, no sail flogging, no sheeting winches, easy downwind sailing, auto-tacking, easy to jerry rig if it rips (by lashing battens together), easy and cheap to repair because parts are general (not marine/sailboat specific), sail canvas can be UV-resistant, one working sail (no need for a sail wardrobe)

    Attached Files:

  2. Will Gilmore
    Joined: Aug 2017
    Posts: 965
    Likes: 450, Points: 63
    Location: Littleton, nh

    Will Gilmore Senior Member

    That is a very interesting design. I assume, for larger vessel applications, some cutout can be made to accommodate spreaders.

    I would love to see pictures of it in action.

    -Will (Dragonfly)
  3. ImaginaryNumber
    Joined: May 2009
    Posts: 436
    Likes: 59, Points: 28, Legacy Rep: 399
    Location: USA

    ImaginaryNumber Imaginary Member

    Your sail looks similar to Paul McKay's Aerojunk rig. He posts on the Junk Rig Association Website. Maybe you can collaborate with him.

    The Junk Rig Association - Improving Paul McKay's Wishbone Junk
    The Junk Rig Association - The Aerojunk
    The Junk Rig Association - AeroJunk Update

    After reading your Instructable I see that you are very aware of Paul McKay and his Aerojunk. My bad! :( Would like to see how your sail works on a boat, as I'm sure you would too.
    Last edited: Feb 13, 2021
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