Pahi 42 standing rigging

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Anonymous (not verified)
Pahi 42 standing rigging
:) 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
Anonymous (not verified)
Re: Pahi 42 standing rigging
Hi katfish got your message. The main question is whether there are x beams in the right place I think. I agree about tieing to the ends being easier. Not sure about the beams moving less; guess you mean relative to the mast but if its a different beam from the one(s) the mast is on I think it'd move more. Don't think it matters either way. Another advantage is you could eliminate chainplates which is always a good thing. Guess you know your idea is in place on the ethnic designs.
jochem (not verified)
Hi to all, I recently bought

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

 

Anonymous (not verified)
Re: Pahi 42 standing rigging
I have a PAHI31 I know exactly what you are saying.Not sure non-PAHI sailors will .I think you are on the right tack but this is only part of the problem.it will solve the problem at the chainplate lanyards but not at the the maststep .The only solution I can see to this is to fit a full xbeam instead of the present half beam which on my boat at least moves all over the shop.Coincidentally you will now have a xbeam exactly where you need to attach the sidestays.You will now of course have 5 crossbeams and will be asking yourself if you really need them all---- See also GALWAY BAY PAHI31 post SEAMUS GALWAY BAY
Anonymous (not verified)
Re: Pahi 42 standing rigging
hi Glenn, i aam about to buy a built Pahi 42. i noticed that one of the central bean is fix and get directly into the hule with no articulation. Do you know it is according to original plan ? Didier
Anonymous (not verified)
Re: Pahi 42 standing rigging
Wow a real message! I guess as seamus implies the center xbeam is a half beam. The p26 had one of these. It sits in pockets along the inner hullsides but isn't afixed in any way; It's trapped in the pockets and can't get out, but can articulate freely. So are you sure that beam you see is fixed in place? For sure the plans don't call for any beam that can't articulate and one wouldn't be a good idea. The half beams are intended only to support the mast and other weight between the hulls, not to hold the boat together.
Anonymous (not verified)
Re: Pahi 42 standing rigging
Greetings Glenn.That was very impressive sailing you did in your PAHI26. I am getting back into sailing after a break. I am at times a tad behind the changes which have become almost standard on some designs.On my PAHI31 I am replacing my 1/2beam with a full one as it moves too much in relation to the chainplates to provide a good mast-step. However I am using the old cutter rig, many sailors now use the wingsail which seems to result in the mast mounting on beam2 so that this may now be a non-issue for them. Using 3 full crossbeams on the Pahi31 can give better cabin and deck/cockpit layout also. It seems common now to use a two mast rig on the Pahi42 these also could be stepped on full beams [or on a crosspiece between two such] . The 1/2beam would then only carry the deck/cockpit structure, most boats seem to have something like this now.
Anonymous (not verified)
Re: Pahi 42 standing rigging
Ooops I have been out of the loop too long it is the 63 which is two masted the 42 is mostly a one mast boat. Apologies.
Mike Banks (not verified)
Crossbeam reply

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.