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Mainsheet systems #76170
05/26/06 07:11 AM
05/26/06 07:11 AM
Joined: Mar 2006
Posts: 25
Lake Bonney Yacht Club, Barmer...
Andrew_d Offline OP
newbie
Andrew_d  Offline OP
newbie

Joined: Mar 2006
Posts: 25
Lake Bonney Yacht Club, Barmer...
At the risk of going over old ground, I am interested to hear from other mozzie sailors what their preferred mainsheet system consists of. I am aware of the 4 types on the Victorian web site, and a few more, but would like to know why people prefer their setup.


Andrew DeLaine Mosquito 1734 Go-Nads II
-- Have You Seen This? --
Re: Mainsheet systems [Re: Andrew_d] #76171
05/26/06 07:50 AM
05/26/06 07:50 AM
Joined: Mar 2006
Posts: 97
Adelaide, Australia
Tony_Snape Offline
journeyman
Tony_Snape  Offline
journeyman

Joined: Mar 2006
Posts: 97
Adelaide, Australia
Andrew

As you know... but for the benefit of the post. I went from a centre sheet 6:1 system (Ronstan RF7) to a rear traveler 6:1 system (Harken 2613+8mm cleat) to 1. reduce weight (lost 835g) and 2. clear the deck for Mk2 and 3. The centre sheet system limits traveler use, (tightens leech, etc). Make things as simple as possible and you will have less liklehood of Murphy sticking his nose in when you least need it. <img src="http://www.catsailor.com/forums/images/graemlins/smile.gif" alt="" />

Cheers

Tony


Tony Mosquito 1743 'Phat Cat'
Re: Mainsheet systems [Re: Andrew_d] #76172
05/29/06 04:25 AM
05/29/06 04:25 AM
Joined: Jan 2006
Posts: 556
Somers, Westernport Bay, Victo...
Peter_Foulsum Offline
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Peter_Foulsum  Offline
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Joined: Jan 2006
Posts: 556
Somers, Westernport Bay, Victo...
Andrew,

I also use a 6:1 ratio block system off the traveller with a cleat running off the bottom tripple block ratchet. This cleans up the trampoline for clutter free space and no extra fittings/weight.

Did you check out the Sth African Mozzies on the Rudder topic with the boom mounting ? It looks like they spread the boom loading and use a smaller diameter (lighter) boom. <img src="http://www.catsailor.com/forums/images/graemlins/smile.gif" alt="" />


Mosquito 1814
Macka Mozzie
Re: Mainsheet systems [Re: Peter_Foulsum] #76173
05/29/06 06:01 AM
05/29/06 06:01 AM
Joined: Mar 2006
Posts: 25
Lake Bonney Yacht Club, Barmer...
Andrew_d Offline OP
newbie
Andrew_d  Offline OP
newbie

Joined: Mar 2006
Posts: 25
Lake Bonney Yacht Club, Barmer...
Peter

Thanks for that. I did notice the South African setup, it's a bit difficult to see the sheeting arrangement from the Dotan photo, perhaps one of their members might describe it for us. I plan on going to a smaller boom, but want to do my homework first. Does anyone use two ratchet blocks in their system?
Cheers

Andrew


Andrew DeLaine Mosquito 1734 Go-Nads II
Re: Mainsheet systems [Re: Andrew_d] #76174
05/30/06 08:27 AM
05/30/06 08:27 AM
Joined: Feb 2006
Posts: 135
Bendigo, Victoria, Australia
colmc Offline
member
colmc  Offline
member

Joined: Feb 2006
Posts: 135
Bendigo, Victoria, Australia
I am trying the Victorian Mozzie Site No 1 System, "All on the rear beam, with cleat and rachet block fixed in the centre."

I went away from the triple block on the rear beam as I had problems with the cleat angle. I either couldn't get it cleated while on the wire or I couldn't get it uncleated while on the wire.

I broke my hand a year or so a go and have lost a bit of strength in it and need a sure cleating system. The new system seems to be working better for me.


Col
"Now What?"
Mosquito 1810
Re: Mainsheet systems [Re: Peter_Foulsum] #76175
05/31/06 04:28 PM
05/31/06 04:28 PM
Joined: Oct 2003
Posts: 2
Cape Town South Africa
Sarel Offline
stranger
Sarel  Offline
stranger

Joined: Oct 2003
Posts: 2
Cape Town South Africa
We have tried using a 50mm round tube with a 1.5 mm wall thicknes but this has proved a bit fragile, especially with a single triple block hanging from a single point on the boom.

We have a few mossy sailors that run three single blocks off the boom this does spread the load but they are using a dinghy mast section. I will see if I can get some pictures.

Sarel

Last edited by Sarel; 05/31/06 04:30 PM.

Mosquito Sailor
Re: Mainsheet systems [Re: Sarel] #76176
06/01/06 04:26 AM
06/01/06 04:26 AM
Joined: Mar 2006
Posts: 97
Adelaide, Australia
Tony_Snape Offline
journeyman
Tony_Snape  Offline
journeyman

Joined: Mar 2006
Posts: 97
Adelaide, Australia
Has anyone tried spreading the load of the triple block across say 300mm of the boom as opposed to a single point load? This wouldn't be hard to do!!

Attached Files
77301-BoomMod.JPG (474 downloads)

Tony Mosquito 1743 'Phat Cat'
Re: Mainsheet systems [Re: Andrew_d] #253743
10/21/12 04:56 PM
10/21/12 04:56 PM
Joined: May 2011
Posts: 108
Port Hedland
Beckit 1824 Offline
member
Beckit 1824  Offline
member

Joined: May 2011
Posts: 108
Port Hedland
I have 7:1, with the becket at the top and combined 3 plus 1 at the bottom and a triple with ratchet at the top. It is a modification of a harken 8:1 system, as I found that the ratchet on the bottom of the system won't hold much weight as it only wraps around the load ratchet about 100 degrees. I have another ratchet on the upper block as well now and it worked really well during a recent blow in bendigo.
To attach to the boom, I have a dyneema (?) loop inside plastic fuel hose which goes around the boom similar to the A class. I don't trust hangers on a point load, and if you put a flat side shackle in the loop you can attach it to your out haul slot to get the perfect position. I am really happy with this set up now after a bit of mucking around.

Re: Mainsheet systems [Re: Andrew_d] #253750
10/22/12 03:36 AM
10/22/12 03:36 AM
Joined: May 2007
Posts: 416
Matt_Stone Offline
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Matt_Stone  Offline
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Joined: May 2007
Posts: 416
hi, all,

Nice pic tony, of me in your display pic, haha,
I use a 6:1 system, i have a ronstan 40mm orbit triple block (Rf45301)at the top mounted on a boom hanger ronstan (RF483) about 200mm aft from the rear beam and on an angle and a harken triple block with becket and cleat (Harken 40mm 2613) . i have raised the cleat so its harder to cleat and took off the saddle on top of the cleat (No accidental cleating.
I only cleat when i have the kite up, all other times i hold it in my bare hands on every leg i dont have a kite up!
i also use the old paper tiger / sabre mast section as a boom section which is roughly about 55mm by 45mm section and never had a problem with it!

Matt

Last edited by Matt_Stone; 10/22/12 03:40 AM.

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