National 12

General Boards => General National 12 chat => Topic started by: IanL on 21 Nov 2006, 08:29

Title: Shrouds and levers
Post by: IanL on 21 Nov 2006, 08:29
Quick question, relevant ot a bit of winter re-rigging.

A look through the photos suggest that shroud levers have been replaced by a pulley system for adjusting the shrouds. What purchase do folks use here? What breaking strain blocks?

And another - assume the job halyard also adjustable? Same two questions...

Thanks in anticipation.

Title: Re: Shrouds and levers
Post by: rick perkins on 22 Nov 2006, 10:08
My shrouds are 16:1.

I don't know what the jib is because it goes under a tunnel ...

Rick
Title: Re: Shrouds and levers
Post by: DavidW on 23 Nov 2006, 12:18
16:1 is the norm. We have fine and coarse on ours 16:1 at on end (serving both shrouds) and 8:1 (I think) serving the other ,coarse, end.

Don't recall the breaking strain of the blocks but pretty high!

Cheers
Title: Re: Shrouds and levers
Post by: Mikey C on 23 Nov 2006, 05:57
As long as you use something pretty beefy for the first 2:1 (generally above deck) pretty much anything will be ok for the rest - I use Harken 16mm airblocks for pretty much all systems on my boats except the first purchases which need higher strains, but the bigger sheaves will help ruduce friction.