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2:1 halyard hardware


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Dont think thats right?  Bit worried to have a go at this, but in the 1:1 case, the sail applies a 50kg load down, the halyard the same vaule to hold it up there, therefore masthead has 100kg of

Our Vote would be Tylaska we currently have the non sheave version. Never had an issue with it.

So i've done a couple of sketches and they show in a 1:1 setup with 50 kg (technically should be called 500 newtons) of force holding the sail in position there is 50 kg of "pull" in the halyard going

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29 minutes ago, Ed said:

The equiplite stuff is nice but makes tylaska look cheap!

I think the friction ring and soft shackle is going to be the way for now, just gotta sort out how to tie the shackle

Problem you need to consider with the soft shakle option Ed, is the tolerance you have above the headboard to the crane. I have know those who tie a bowline from a friction ring, down side is its never going to be a constant for luff tension.

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Thanks for putting that up IT. I've waded through that lot last night and this morning, Pity the diagrams are lost.  However  knowledgable the written points may be I still can't understand how mast compression is reduced although it seems those with  the experience say it is. Thanks again

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So i've done a couple of sketches and they show in a 1:1 setup with 50 kg (technically should be called 500 newtons) of force holding the sail in position there is 50 kg of "pull" in the halyard going from the sail going up to the sheave and of course the same 50kg pulling down inside the mast - so the sheave is compressing the mast by 100 kg.

With a 2:1 set up there is only 25kg of load on the halyard so 25 kg where it terminates above the sheave  plus the 25kg going from the sail up to the sheave as well as the 25kg coming down inside the mast giving a total of 75kg now... I'm pretty sure i've got this right , if needed i can get some help and  post my sketches. It looks to me that armchairs drinking buddies are onto it

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Thx Jim....I think I've just about got it now. It's the down ward force on the main luff that is the confusing point. But the anchor point for the halyard is at the mast crane. Then to a block on the main headboard so the load is 100 kg at masthead. So logically ( to my mind) the load at the mast step has to be 100 kg ? even if the load on the halyard is as you say? Thanks  again for explanation

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