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Rooster 8.1 rig on Laser

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timeintheboat View Drop Down
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Post Options Post Options   Quote timeintheboat Quote  Post ReplyReply Direct Link To This Post Topic: Rooster 8.1 rig on Laser
    Posted: 27 Feb 07 at 6:59pm
Like many I'll be watching the progress of this one with interest. This has the potential to be a cheap way back into exciting single handed sailing.

Is the sail mylar? If so that won't like flapping about too much.

What about the loads on an older sleeved boom when depowering?

Good for Rooster.
Like some other things - sailing is more enjoyable when you do it with someone else
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Villan View Drop Down
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Post Options Post Options   Quote Villan Quote  Post ReplyReply Direct Link To This Post Posted: 27 Feb 07 at 6:42pm
You still have to catch the clew though!!

Also, A few years ago, Wern't the metal "tiedowns" frowned upon?
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Post Options Post Options   Quote Adam.s Quote  Post ReplyReply Direct Link To This Post Posted: 27 Feb 07 at 6:33pm

''Try and catch clew as it flaps around and then struggle to get it tied off (velcro straps help here but still very fiddly)''

Hopefully this new clew sleeve will make attaching the sail so much easier, i'm going to get one

http://www.lasersailing.com/shop/uks/product/5203

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Post Options Post Options   Quote mike ellis Quote  Post ReplyReply Direct Link To This Post Posted: 27 Feb 07 at 4:14pm
i saw the 8.1 out on sunday, what i saw of it (about 5 minutes off the start line and when it went past me down wind) looked very good. mind you it was being sailed by a very good sailor. the rig looks like it will last much longer than a bog standard laser sail. but at 70kg i wouldnt like to try sailing it in any more than a force 3.
600 732, will call it Sticks and Stones when i get round to it.
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Post Options Post Options   Quote Medway Maniac Quote  Post ReplyReply Direct Link To This Post Posted: 27 Feb 07 at 2:44pm
Originally posted by foaminatthedeck

Surly the max loading will increase, if for a given crew weight is the boat is kept flat, and the sail size is increased the force acting on the centre of effort will increase therefore the moment acting about the mast foot will increase so the load at that point will increase.

That's why I said the average loading would increase. But once you're fully hiked on the beat, the righting moment and the equal and opposite heeling moment of the rig is at a maximum and can't go beyond that, whatever you do with the sail size.

The "force on the centre of effort" could only increase if you had more righting moment to balance it with, which you don't, so you have to start luffing or dumping (assuming you're already on max sail flattening).

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Post Options Post Options   Quote foaminatthedeck Quote  Post ReplyReply Direct Link To This Post Posted: 27 Feb 07 at 2:36pm
Originally posted by Medway Maniac

Given that the max righting moment is determied by the sailor not the sail, the max loading on the mast step on the beat won't be affected by sail size. The average loading may be increased though, in that a fatty will be fully-hiked over a wider range of conditions (though as an aside, it's interesting to appreciate that the max potential thrust of the rig, when fully hiked, will actually decrease with increasing sail size as the centre of effort is moved skywards, increasing heeling moment and necessitating a lower force to equate to the same heeling/righting moment!).

Well off-wind, where loads are effectively unlimited due to the possibility of bearing off ever-further in the gusts, the mast step loadings will be increased by a bigger rig.

So, Laser might have a point if they quibbled over warranty claims.

 

Surly the max loading will increase, if for a given crew weight is the boat is kept flat, and the sail size is increased the force acting on the centre of effort will increase therefore the moment acting about the mast foot will increase so the load at that point will increase.

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Post Options Post Options   Quote jeffers Quote  Post ReplyReply Direct Link To This Post Posted: 27 Feb 07 at 2:14pm
Originally posted by redback

What's this about a boat with a fixed mast being easier to rig?  The Laser is ridiculously easy to rig



I can rig my Blaze from being in the boat park to being on the water and sailing in less than 10 minutes, the best I managed in the Laser was 20 (provided I was changed first of course).

Rigging the Blaze:

Attach sail you mast using velcro strap, attach clew to boon using velcro strap and hook on outhaul.

Attach halyard to top of sail and hoist.

Put cunningham through sail in clip on to gooseneck mounting

Put rudder on...done

rigging the Laser...

Put mast sections together

Unroll sail

Pull sail down mast

Put mast in mast step

put cunnigham through cringle and tie off to vang mounting

put boom on gooseneck

Try and catch clew as it flaps around and then struggle to get it tied off (velcro straps help here but still very fiddly)

Hook outhaul on

sheet sail in and hook vang on

attach rudder

attach bungee for daggerboard

check to make sure all the ropes are not tangled and caught as you cannot do anything about it once on the water

Launch (at last).

I have to say I enjoyed sailing the Laser when I had it but would not go back to one now after having the Blaze for over a year...

Good for Rooster try and and do what Laser need to do but I guess that means they are out of being a strict (SM)OD at that point which is good because it means old boats are still competitive.

Horses for courses though....pays your money and takes your choice...If I am offered a ride in an 8.1 I will probably take it out of curiosity if nothing else.....

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Post Options Post Options   Quote allanorton Quote  Post ReplyReply Direct Link To This Post Posted: 27 Feb 07 at 1:53pm
Originally posted by NickA

as for rigging - it's all those little ropes to thread and retaining pins to undo that takes me forever, not putting the sail on the mast or the mast in the boat!  If only the cunningham hole in the sail was big enough to post the cunningham block through .

I agree, but dragging a  dacron sail in the dirt can't be a good way of rigging a boat.

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Post Options Post Options   Quote hum3 Quote  Post ReplyReply Direct Link To This Post Posted: 27 Feb 07 at 1:43pm

16 stone man holding a standard rigged boat flat is going to have the same sideways stress as 16 stone man hiking out to hold both a 4.7 or an 8.1 flat.
[/QUOTE]

True dat...

The average sailor weight will go up, which will put more stress on the hull in the long run, but enough to cause damage? I guess we'll find out soon enough.

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Post Options Post Options   Quote Medway Maniac Quote  Post ReplyReply Direct Link To This Post Posted: 27 Feb 07 at 1:33pm

Given that the max righting moment is determied by the sailor not the sail, the max loading on the mast step on the beat won't be affected by sail size. The average loading may be increased though, in that a fatty will be fully-hiked over a wider range of conditions (though as an aside, it's interesting to appreciate that the max potential thrust of the rig, when fully hiked, will actually decrease with increasing sail size as the centre of effort is moved skywards, increasing heeling moment and necessitating a lower force to equate to the same heeling/righting moment!).

Well off-wind, where loads are effectively unlimited due to the possibility of bearing off ever-further in the gusts, the mast step loadings will be increased by a bigger rig.

So, Laser might have a point if they quibbled over warranty claims.

 

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