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Sigma 41

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Sigma 41
23 October 2008, 11:06 PM
ALLEN
Joined 25 Feb 2008
13 posts

Hi Roger

Sailing Today article highly successful for promoting Sigma 41, you have done a great job for all of us.

Sailing education of one more yacht reviewer advanced too, as he obviously enjoyed a new experience at the helm of a classic IOR cruiser/racer.

Why have we been so unsuccessful in retaining the idea? Could the "rule-makers" who allowed "large dinghies-with-lids-on" be persuaded to return to sensible thinking? Is it now time for a bit of serious yachting, allowing only yachts built before 1988,when the rot really set in? Maybe like the boat i'm just too old, but Sig 41's are always super to sail.

Allen


Sigma 41
23 October 2008, 11:37 PM
Roger
Joined 2 May 2004
78 posts

Hi Allen

Thanks
Yes there is a perception that Sigmas are 'really racy' and difficult to handle - we all know differently !
I have to declare an interest as a measuer and say I think we are getting old - it seems that in general the younger chaps like the twitchier and fast modern things - but I suspect my dad would have said the same about the 41 (he certainly did about the 33 I had in '79!)

Roger


Sigma 41
31 October 2008, 4:40 PM
Jim
Joined 9 May 2005
30 posts

Hello Roger.I have been looking for November Sailing today since you posted your article but WH Smith in Liverpool does not stock it and my local newsagent cant get a copy for me.Any ideas where I could buy a copy?Many thanks,Jim

Sigma 41
1 November 2008, 3:59 PM
Roger
Joined 2 May 2004
78 posts

Jim
Can't think but maybe an email to them and they could post you one ?

Sigma 41
1 November 2008, 7:58 PM
Jim
Joined 9 May 2005
30 posts

Thank you for your speedy reply.When I was visiting a sailing club last night one of the members gave me his copy.Very generous.We have the Yanmar with a fixed 3 blade prop but are not as fast at the revs given.What prop do you have?Our 41 is a 1985 M/H version which was cutter rigged,with runners,for the 2000 ARC by its previous owner.We have cupboards in place of pilot berths which helps if one is in cruising mode.I dont know if this was an afterthought or was factory fitted.The down side is that they get filled so we seem to carry a lot of "unecessaries".Thanks,Jim


Sigma 41
2 November 2008, 4:45 PM
Roger
Joined 2 May 2004
78 posts

Hi Jim

This is last reply you will get for a bit as we are leaving Cascais tomorrow for the Canaries.
We get about 3200 revs, about 8 knots tops its a three bladed feathering similar to maxprop.
I think built in cupboards were an afterthought don't think any were factory fitted - unless of course anyone else knows better!

Roger


Sigma 41
25 November 2008, 1:23 PM
Ted
Joined 9 Jun 2008
12 posts

I tried to post this message yesterday. My apologies if it gets posted twice.

What material do people use for mast partner wedges? Someone here has recommended Starbright, others teak. Hard rubber makes sense to me, but it is hard to find thick enough sheets.

I don't know whether other boats are the same, but we have nearly 1" of clearance all the way around the mast, and this requires big wedges.

Ted


Sigma 41
25 November 2008, 2:10 PM
simon
Joined 23 Jan 2006
10 posts

Hi Ted, I had a similar problem large gap around the deck collar. I have been told that two different size collars were fitted.The larger to taller rigged boats even though the mast section is the same. My mast requires 2x 10mm and 2 x25 or 30mm blocks fitted fore and aft. I used the standard issue selden hard rubber blocks. I have found the rig tension to be critical to the blocks staying in place. I've have had some "fun" relocating them in heavy seas.
The blocks are available from selden dealers here of the shelf.

Simon


Sigma 41
25 November 2008, 2:16 PM
Roger
Joined 2 May 2004
78 posts

Hi Ted
Hard rubber is apparently the best - the riggers hers hereruse it in 1/2 to 3/4 inch strips. They use a winch to pull mast back/forward to the right position so that the 'give' in the rubber makes sure it doesn't fall out - they also have used wood wedges (teak I think)

Roger


Sigma 41
25 November 2008, 5:25 PM
Nightlife
Joined 24 Mar 2006
24 posts

Hi, Ted.

I've had to relocate mine in heavy weather, too - a couple of times, in fact and using the technique Roger described. Don't be shy - from the winch go round the mast and back to a strong point (e.g. another winch) so you have a double purchase then winch the mast back with the heaviest genoa sheets you have until they're really squeal.

My rigger told me that it's possible to buy 'L' - shaped rubber sections that won't fall through in heavy weather but I haven't yet done so.

Regards,

Tom.


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Sigma 41
25 November 2008, 6:50 PM
Francois
Joined 19 May 2005
9 posts

I have had great luck with Spartite, a two part copolymer that solidifies in place and completely fills the gap.

Not only does it stay in place in any weather but is much safer if the rubber boot at the base of the mast on deck is ripped off since it will prevent large volumes of water coming down below.

Just follow the intructions carefully, pretension the mast before you pour, and plan ahead for what you will do when taking the spar down.

Since it puts circumferencial pressure on the mast, it prevents local high pressure points. I have had it in place for many years now.

Francois,

Time Off, Tall MH rig, 071


Sigma 41
25 November 2008, 9:55 PM
Roger
Joined 2 May 2004
78 posts

Francois

According to Spencer Rigging it should nor be used as if you need to remove the mast it is virtually impossible as the spartight fills the hollows in the deck partners and makes it virtually impossible to remove the mast without major work cutting through the material.


Sigma 41
25 November 2008, 10:52 PM
lasse
Joined 4 Dec 2007
6 posts

The way to support the mast for and aft is by the rubberblocks sold by Seldens and then put them in place the way Roger describes and finally lock them to the mast with a large hose clamp either over or under the deckcollar. In Sweden we take down the mast every winter so I have got a lot practise . Another hint is that when the mast starts leaking internally, Selden sells a kit to seal it of again. Quite a job if you ask me.

Lasse


Sigma 41
17 December 2008, 4:48 PM
Papillon
Joined 17 Dec 2008
5 posts

I would be interested in a copy of the sales brochure as i am interested in possibly purchasing a sigma 41

Sigma 41
18 December 2008, 8:52 PM
Jimmymac
Joined 9 Feb 2006
40 posts

I have a copy of the sales brochure if you p.m.me I'll send it to you. Anyone fitted higher rated alternator? if so what type and did it fit.

Jim



Sigma 41
18 December 2008, 9:50 PM
Sjur
Joined 19 Jun 2008
4 posts

Hi,

jimmymac, please send the brochure to me [Log in to view email]
( I did not figure out how to do PM)

I just fitted a new engine in Denmark. I can really recommend http://www.lsm-diesel.dk/

I sailed the boat down one weekend and came down 14 days later. Everything was running smoothly and the had to redo a lot of the electrical since it was original English standard.

I'm going to fix the rudder next 14 days, since it hangs some times and is not exact enough (slings a bit). Any good tip is welcome on this issue!


Sigma 41
20 December 2008, 9:57 AM
Papillon
Joined 17 Dec 2008
5 posts

Sorry how do I get a hold of a copy didn't understand!
haven't got a Phone no. or address?
Thank you

Sigma 41
20 December 2008, 10:05 AM
Papillon
Joined 17 Dec 2008
5 posts

Jim,
Could I ask you for a copy of the article, if you now have a copy?
thank you

Sigma 41
20 December 2008, 12:39 PM
Rog
Joined 28 Aug 2008
3 posts

I have one for sale my home phone is UK 01305 871277 please ring if you are serious

Rog


Sigma 41
20 December 2008, 10:33 PM
Rickinlittleharbor
Joined 14 Nov 2006
13 posts

Allen,
I went through the archives remembering someone tackled the teak deck "fix". My deck also is in tough shape and I am contemplating the removal of the teak and repair and re-affix. The question to you is..when you removed the plywood underlayment did you replace this plywood, if so did you attach the plywood to the deck and then the teak over this? Any other advice would be greatly appreciated.

RIck
Interlude


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