Hi John
Pulleys are expensive I have been in the habit of making my own in some cases
In yacht chandlers you can buy the plastic sheaves [the wheel bit] at reasonable prices and then its just a matter of making the side plates for them
This can work out very well on the boom as the side plates can be part of the strap that goes over the boom and so can be all one unit with multiple sheaves
Are you using a centre sheeting arrangement on your class5?
That is my preference on class5 If so you could use three sheaves on the boom
and if you can afford it a ratchet block as well
Down on the chassis you could have another three plus a tying off point for the end [a becket] and you would have a very good system
Better than mine as I dont have the ratchet block
Some food for thought for you John
cheers Hiko

OK, good ideas.

My plan is to use the center sheeting arrangement. I'll keep you posted with the progress.

Thanks for the help!

Sounds like I need to spend some $$$$$$$$$$$$$$$$$

Most of it has been said!
I talked with the senior partner in one of the major name brands of roller blocks about 20 years ago, who told me that if he had to buy his own blocks he would not use them on a land yacht! His reasoning was that they made them for water yachts where there is spray for lubrication, and the "windblown dust and dirt" just eroded the balls too quickly. He reckoned they were good for business but his serious advice was to not use them. At the time I did not have to pay for them either, but when I did I went to plain blocks from RWO or Andersen. They seem to be a harder plastic, excellent pricing and live for a long time.

lovely job there hiko
The problem Ive had with cam cleats is that the positions available on manufactured cleat suit the common deck angles for dinghies,cats and the like. they just didnt quite suit ourclose up, laying down positions

OK, spent some $$$$$ today. The triple blocks are ronstans, and the ratchet is a harken. The single sheaves were on a peg, so i don't know the brand.

I'll send pictures of the finished setup.

Thanks again for all the input!

desertyank said...

Hiko,

I forgot to ask what the sheaves spin on. Did you put bushings in there, or do they just rotate on the bolt?

I used short pieces of SS tube as Bushes/spacers
Looks like you have some good sheet blocks there they should do nicely
The sheaves you have there look the same as the ones I used
Looks as though you have some good lubricant there too

great investment there. keep them clean!and out of the weather when not in use., If you sell the yacht , change them for cheapies and use the blocks for the next yacht

I can supply three wheel block for around $80 (NZD) ($53 USD) all ronstan blocks.
ratchet block for around the same. let me know if anyone would like some ??

ADlandyachts said...

how much in us $ are the blocks. just intrested because i am using the same blocks
on my yachts. ??? (but i am in ZN$).

Bugger the blocks, how much is the beer

I found a site that was selling the one youve shown at $219AUS