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Why slack rigging

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Rupert View Drop Down
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Post Options Post Options   Quote Rupert Quote  Post ReplyReply Direct Link To This Post Topic: Why slack rigging
    Posted: 11 Feb 17 at 10:08pm
I remember Holt round masts with the track riveted on. Can't believe they were very stiff, but no real idea.
Firefly 2324, Lightning 130, Puffin 229, Leader, Topper 44496, yellow Minisail
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Paramedic View Drop Down
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Post Options Post Options   Quote Paramedic Quote  Post ReplyReply Direct Link To This Post Posted: 11 Feb 17 at 9:27pm
Ive not seen a normal D on a Solo for years. I would imagine the gold masts are Ds and Cs not seen a B but i bet they were used too.

Anything semi recent wood be a Cumulus/C/Sleeved C/D+ or Superspar M1/Skeeved/M7
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Post Options Post Options   Quote zippyRN Quote  Post ReplyReply Direct Link To This Post Posted: 11 Feb 17 at 3:43pm
Originally posted by ColPrice2002



With regard to the Solo,one of the effects of slack rigging is that the mast can sag a bit to leeward, tending to open the leech upwind. With the fully battened sail, I suspect it is too easy to hook the leech.

Colin

what section ali mast  was the Solo orginally  built  with ?  given there are people sailing them now with D/ sleeved D / D+  and M7  masts -  all fairly stiff and in the case of a D+ esigned to be extra stiff  in the Ent   with it's deck stepped  Mast  where as a lot of the olderboats look to have C or similar masts 
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Post Options Post Options   Quote ColPrice2002 Quote  Post ReplyReply Direct Link To This Post Posted: 08 Feb 17 at 9:04am
Both my Fireflys were fitted with rotating masts, the fastest setup was to have the forestay slack enough that the mainsheet could be block to block upwind. For downwind, there was a jib tensioner to pull the rig forward and tighter the jib luff.
If one forgot to release this upwind, the boat was significantly slower.

As Rupert states, the Reynold masts needed tight diamondstays - the section as too thin to be self supporting downwind (remember that the mast rotated).
The later Proctor masts were more robust, nowadays, the mast is fixed with spreadrs, so it's a different setup.

With regard to the Solo,one of the effects of slack rigging is that the mast can sag a bit to leeward, tending to open the leech upwind. With the fully battened sail, I suspect it is too easy to hook the leech.

Colin
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Post Options Post Options   Quote Sam.Spoons Quote  Post ReplyReply Direct Link To This Post Posted: 08 Feb 17 at 12:46am
LOL
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Rupert View Drop Down
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Post Options Post Options   Quote Rupert Quote  Post ReplyReply Direct Link To This Post Posted: 07 Feb 17 at 9:16pm
Till the mast crumples like spaghetti!
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Post Options Post Options   Quote Sam.Spoons Quote  Post ReplyReply Direct Link To This Post Posted: 07 Feb 17 at 1:07pm
It looks like the very extreme forward rake of the Star class downwind gets the airflow moving up the sail and, maybe, keeps it attached for longer?
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Post Options Post Options   Quote iGRF Quote  Post ReplyReply Direct Link To This Post Posted: 07 Feb 17 at 12:01pm
Having floppy rigging enables the rig to act a little bit like a racing windsurfer rig, i.e back for upwind and forward for off wind, it also helps in light wind enabling soft sails to heel and keep shape without having to heel the boat on hulls that don't like to be heeled.
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Post Options Post Options   Quote Sam.Spoons Quote  Post ReplyReply Direct Link To This Post Posted: 07 Feb 17 at 10:19am
Interesting stuff Rupert, I don't have a desire to own another old wooden boat but it's fascinating reading about them.  Smile
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Post Options Post Options   Quote Rupert Quote  Post ReplyReply Direct Link To This Post Posted: 07 Feb 17 at 10:15am
On Firefly Reynolds masts (the ones with the wooden top) diamonds were tight, but shrouds loose. The mast rotated, so tight shrouds would have prevented that happening easily. Once the rotating Proctor mast came out, they were so stiff, even the diamonds became slack.

Edited by Rupert - 07 Feb 17 at 10:16am
Firefly 2324, Lightning 130, Puffin 229, Leader, Topper 44496, yellow Minisail
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