Position of mast inside wing sail

  • 28 May 2019 08:40
    Reply # 7468478 on 7462837
    Anonymous

    Thank you Mr. Webb and Mr. Tyler!

    I'd seen the split and aero junks, but hadn't looked far into them, not understanding their advantages- I will do that. That checks all the boxes of keeping the good qualities of a junk without having to move my tabernacle!

  • 28 May 2019 06:56
    Reply # 7466896 on 7462837

    Hello Everett,

    My new wingsail on Weaverbird  is proving very successful ( full report soon)  but it does need the mast to be very near the luff, as do all variants with hinged battens. I think you would be best advised to go with the split junk, with the mast in the designed position, though perhaps the hull is of a type that could carry it well forward.

  • 28 May 2019 04:54
    Reply # 7465153 on 7462837

    Hi Everett,

    I would suggest that you look at a Split junk or an Aero Junk rig, both have substantial area ahead of the mast and have most of the advantages of a junk rig such as quick and easy reefing. The balance area also reduces the stresses on the sheets. I think that you would have no trouble designing a rig for your boat that had the same center of effort as the designed lugsail.

    All the best with the project, David.

  • 28 May 2019 01:57
    Message # 7462837
    Anonymous

    Hello,

    This is my first post. I am in the (long) process of completing Ataraxia, which has never yet had a mast or rig. With the goals of less reliance on the motors and simpler singlehanding than it was designed for, I'm planning a rig other than the dipping  lug originally specified. I am leaning heavily toward a soft wing with hinged battens along the lines of Tystie or Grand Pha, but am still open to a junk.

    My problem is this: the dipping lug extends quite far in front of the mast. If I try to keep the profile of the sail as close to the dipper as possible when drawing my wing sail the mast is placed very near the rear of the hollow, by the hinge. My gut tells me this will lead to too much balance forward of the mast. Is my gut right?

    I'd like to avoid moving the mast tabernacle forward if possible, though I am open to it if necessary.

    Thank you for your thoughts and experience! I can produce drawings to clarify, but am not sure at the moment which drawings will be most helpful.

    1 file
       " ...there is nothing - absolutely nothing - half so much worth doing as simply messing about in junk-rigged boats" 
                                                               - the Chinese Water Rat

                                                              Site contents © the Junk Rig Association and/or individual authors

Powered by Wild Apricot Membership Software