:) Hi to all. I would really appreciate some input on the following. I am looking at using the crossbeams rather than the hull chain plates for my standing rigging (dynex). My logic is that the beams move much less than the hulls & therefore put less cyclic strain on the mast & rigging, and tying & splicing dynex around the beam ends is so much easier than chain plates on the hull. And whilst the chain plate mounting is obviously strong enough, the beams are even stronger. I have large end plates on my beams so there is no way the rigging could escape.
Am I being too logical??
Happy building/sailing to all,
Katfish
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Hi to all,
I recently bought a pahi 42 without mast, hadn't seen any water!
after the having put the hulls in the water we knotted the boat together (a perfect way to assemble a wharram by the way!)
I Wonder the same as stated in the first post: why not tying the stays on the beam? A waterstay beneath the mast, to the same points as the maststays would make the construction a lot stiffer, indeed not strayning the masts and stays so much.
further I wondered to set the mast on the second forebeam, leaving the middle beam out to create a proper deckhouse with two beds and a proper navigationcorner in it. Ive made a drawing, the original sails and mastlength can be used!
making a ketch rig by setting a mizzen of about 12 sq. m on a beam laid over the aft deck.
anyone any ideas?
thanks a lot!
Jochem
This solution seems at first sight to be logical, but the cross beams are designed to supoport the downward thrust of the mast and to keep the hulls in station. When the wind presses and draws the sail, the upward force on the end of the beam from the stays will be countered only by the beam lashings. The chainplates in the hulls are designed to take this load--the beam lashings are I believe inadequate without serious modifications. Concentrating such a severe load on the beam lashings I think would be dangerous. I would stick to the plan.