Gennaker bowsprit load

Discussion in 'Sailboats' started by nemo, Sep 8, 2011.

  1. nemo
    Joined: Apr 2002
    Posts: 132
    Likes: 3, Points: 0, Legacy Rep: 137
    Location: GENOA, ITALY

    nemo Naval Architect

    Hello,
    I need to design a carbon bowsprit for a gennaker. I didn't find on any book any formula for calculating the tack load.
    The only thing I've found is the Marshall formula but it is for sheets and I don't feel it is really applicable to this case.
    Could you please advise wether there is something useful in the literature?
    Thanks
     
  2. dougfrolich
    Joined: Nov 2002
    Posts: 661
    Likes: 21, Points: 28, Legacy Rep: 225
    Location: San Francisco

    dougfrolich Senior Member

    I think that GL has a very good method for determining loads for design--or a load cell on a similar sized boat rigged to the tack line is another good approach. Once loads have been determined its easy to determine thrust on the sprit and tension on the bobstay from statics.
     

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