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Sigma 41

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Sigma 41
23 June 2006, 3:09 AM
Jim
Joined 9 May 2005
30 posts

hello again,I thought I had replied to you previously but I must have pressed the wrong button.Aint PCs great?Somebody else got the message.I am away until the end of Sept but am available on 629 960 846 Spanish so 0034 from UK.


if you need info about Med befofe then.Am riding the wavesw on WIFI so will do best to answer any queries .Jim.


Sigma 41
4 July 2006, 10:56 PM
Nightlife
Joined 24 Mar 2006
24 posts

Re Mainsail for 'Tommy Big-Eyes':

Hi, Sam and welcome. We purchased a new mainsail for 'Nightlife' at the beginning of this year from Owen Sails in Oban. We had found them prompt and efficient having used them for sail repairs and upholstery refurbishment over the past couple of years while we were up there.

We went for a fully-battened main on Frerickson cars, (which added, as I recall, about £600 to the cost), and also for a much larger roach. We spent just over £3,000.

We're very pleased wth the result, having raced offshore a couple of times this year with it. I'm sure Diana Jamieson in Oban will be pleased to give you a quote if you let her know what you'relooking for. Their web site and contact details are at http://www.owensails.com/os/

Hope this helps,

Tom


Sigma 41
6 July 2006, 4:12 AM
Ted
Joined 19 Jul 2004
69 posts

We are getting ready to install a real under-deck autopilot, having lived with a Raymarine 4000 for several years. We need an autopilot that will handle the boat, with its extra-large fractional rig, in the ocean for short-handed, long distance sailing. Any suggestions? Anyone have experience with the Nexus (Comnav) NX2? Any comments on autopilot vs. wind vane?

Ted Keech
Fayaway
San Francisco


Sigma 41
7 July 2006, 6:28 PM
Ted
Joined 19 Jul 2004
69 posts

I hope it is not bad form to "reply" to my own message about autopilots. I am looking at a different arrangement now: a Simrad AP-2701 driving a Lewmar/Whitlock 1/4 hp direct dirve autopilot motor. The 1/4 hp motor is significantly more expensive in both $$ and electrons, but with its big fractional rig, the boat is extremely touchy about sail trim and can be a beast to steer on a reach, especially if we have not reefed quite as early as we should. I think I need the power of the larger motor and expect it may be more reliable.

Any ideas or comments?


Sigma 41
11 July 2006, 11:01 AM
Tommy
Joined 30 May 2006
3 posts

Tom,
thanks for the info on Nightlife's main. Owen sails sound refeshingly reliable. I will get in contact.

Have you found it easy to hoist, drop and reef compared to a standard part battened main (assuming you had one before)?

Sam



Sigma 41
11 July 2006, 1:25 PM
Roger
Joined 2 May 2004
78 posts

Sam
We have a fully battened main on Candida - with Frederickson Cars, lazyjacks and permamnent sail cover on the boom wghich is open at the top. We have the main loose footed so the sailcover is in the track. It is so easy when shorthanded that I cant understand why everyone doesn't have the system - we literally just let the halyard go and it drops straight into the cover and then zip it up!
For hoisting it is almost as easy - a bit heavier 'cos of the extra weight of the battens etc - but it doesn't flog and smash around at all.

Good luck

Roger


Sigma 41
11 July 2006, 7:09 PM
Nightlife
Joined 24 Mar 2006
24 posts

Hi, Sam,

Re; Hoist, drop and reef procedures. Hoisting is a breeze - almost no friction (tho' we do notice the weight of the battens). The sail is still pretty shiny and new(!) so slides around a bit when we flake it, but the battens make it easier to flake, for sure. Having read that the VO70 use lazyjacks, I'm steeling myself to go as far as that, but can't quite bring myself (yet) to fit a stackpack (Sorry, Roger!). The shape is excellent, though, and I'm expecting the full battens to keep it that way a long time.

Hope that helps. Let me know if you'd like to see it flying - one evening, maybe?

Tom.


Sigma 41
11 July 2006, 7:18 PM
Nightlife
Joined 24 Mar 2006
24 posts

Hi, Ted,

We've had our Raymarine Autohelm 6000 head die on us last November, so I replaced it (head only) with a Navman. Bearing in mind it has a gyro incorporated, it's great value.

We kept the Raymarine linear motor and that seemed fine for a while, but we're now getting 'drive failure' errors on the Navman, even in very calm condtions. I don't think that's actually the case but suspect that the Navman expects a slightly quicker response than the ST6000 linear drive unit provides. Anyway, the linear drive has been operating (I believe) since 'Nightlife' was born (1983), so it's given good service. I shall try Navman tech support and see if I can keep it going a while longer!

Hope that helps.

Tom


Sigma 41
13 July 2006, 8:45 PM
Francois
Joined 19 May 2005
9 posts

Hello,

My previous autohelm 6000 did not prove strong enough with a lot of weather helm, it would quit and beep. This on a Tall Mast Head rig.
My current Alpha Spectra with Gyro is a true miser on current and never failed power wise, but I believe B&G has by far the best algorythms and therefore gives the best control.
My full batten North main works very well with Selden slides: they slip in the track but actually rest on pads on the outside of the mast and do not grip coming down, a very good price/performance compromise. I do spray a lot of McLube.
A previous Dutchman system with outside rollers would just rip apart on a regular basis.

Cheers, Francois.
Time Off


Sigma 41
14 July 2006, 1:18 AM
Nightlife
Joined 24 Mar 2006
24 posts

Thanks for the feedback, Francois. My autohelm linear drive used to work fine with the Raymarine head. so I think it must be in the inteface between the two units.

All the best,

Tom


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Sigma 41
27 July 2006, 4:21 PM
ian
Joined 27 Jul 2006
3 posts

We have an Autohelm 5000 which is fine.
Easy to get at and service but virtually no problems over a few years.
Copes well in heavy weather.
Good luck.
Ian

Sigma 41
27 July 2006, 4:47 PM
DET
Joined 6 Sep 2004
31 posts

Just picking up on the comms concerning A/pilots as we have been in Spain (boat still there).
Had an ST6000 with linear drive (fitted as original) which at end of last season started similar antics. Beeping, all over the ocean, voltage drops, etc.
Had Raymarine check out all the units and it was found that the problems were in the course computer circuit boards - they no longer have spare parts.
Did deal to take factory reconditioned Smart pilot S2 (needs new cockpit control head unit as old not compatible) but drives linear drive beautifully. Needs a rudder position indicator fitted - some ST6000 had them, others did not.
Fair winds
David.
'Intrigue'.

Sigma 41
27 July 2006, 7:12 PM
Ted
Joined 19 Jul 2004
69 posts

Thanks for all the comments about autopilots. I have decided to go with the Simrad 2701 and the Lewmar/Whitlock 1/4 hp drive unit. The Simrad has arrived with a truly amazing manual. The unit will do just about everything except decide where we should go, but even on that score it has a contribution: not only will it steer to the apparent wind angle; it will follow a depth contour if you give it the NMEA 183 input from the instruments.

The Whitlock drive is still six or seven weeks away. More in a couple of months.

Ted Keech
FAYAWAY
San Francisco


Sigma 41
29 July 2006, 5:29 PM
Jimmymac
Joined 9 Feb 2006
40 posts

Hi,
We have a fully battened main on Restless with a new stackpack fitted this year. Reefing and dropping are no problem but the sheer weight of the whole thing makes it more or less impossible to raise above the hounds (F/Rig) single handed.Are you serious about the lube and does it really help? I saw a similar rig with a block at the head of the sail giving a 2-1 purchase, any thoughts?

Jim


Sigma 41
2 August 2006, 10:52 PM
Herman
Joined 2 Aug 2006
3 posts

Hello,
I just found this site and i´m happy to meet otherSigma 41 ouwners . We bought this Sigma in 2004and we named the yacht GRACIOSA (ex Dulle Krabbe) . she is located ad Nieuwpoort Belgium . Graciosa is fractional ridged .
Yacht nr J 1067
hull nr PLY 0102/85

Herman



Sigma 41
2 August 2006, 10:59 PM
Herman
Joined 2 Aug 2006
3 posts

Sorry Roger,
forget the E-mail [Log in to view email]
Herman

Sigma 41
21 August 2006, 10:22 AM
-  Edited by Scehawk 21 August 2006, 11:27 AM
Scehawk
Joined 21 Mar 2005
22 posts

Hi there
does anyone know where I can get a new spinnaker pole for my Yacht S41 MH "Scehawk". I was sailing in Antigua and managed to drop ity over the side-and no they don't float too well! The next bit is are any available in the Caribbean?
thanks
Jon
PS Roger my boat details are Name "Scehawk of Tamar"
Class Sigma 41MH
Builder Marine Projects
LOA 12.15M
Beam 3.95M
Draught 2.10M
Registration Part 1 registered. Official number: 714825
Yard Number J108
Engine Bukh 36HP
Engine Serial Number 2632
lying Caribbean-leewards
comments -amazing boat -love her!

Sigma 41
21 August 2006, 3:05 PM
Adrian
Joined 3 Apr 2006
19 posts

Hi there,

Has anyone revised their main sheet arrangements to make adjustment easier when sailing shorthanded ? We find that with one person on deck and steering, the position of the mainsheet and it's winch ahead of the steering column is pretty inconvenient. Seems like it would be an advantage if it were re-led so as to be at hand from behind the wheel. Has anyone done this and if so, how did you go about it ? (Mine's a masthead rig.)

Adrian
"Dorothea"


Sigma 41
21 August 2006, 9:58 PM
Ted
Joined 19 Jul 2004
69 posts

It certainly is awkward getting around the wheel to trim the main. But I already have runner tails behind the wheel and would not want the mainsheet back there too.

When I am on watch alone, I sit forward of the wheel (often under the dodger), steer with autopilot remote and trim sails from where I can reach both main & jib. I tend not to gybe intentionally very often when alone, but when there are two of us, Diane drives through the gybe, and I trim the main first and then the jib. This works fine for me because I think trimming sails is a lot more fun that steering in the ocean anyway.

Ted Keech
FAYAWAY
San Francisco


Sigma 41
22 August 2006, 11:38 AM
Nightlife
Joined 24 Mar 2006
24 posts

Hi, Adrian,

We changed ours just last week! It's a little early to say just yet how well it'll perform, but we've got a 5:1 purchase on it with triple Lewmar ball-bearing blocks above and below. We may yet add a fine-tune to it for getting it in hard when racing, but the difference the ball blocks makes is sensational - heaps more efficient.

I have the bottom block fixed (forward) and the top block allowed to swivel. That's on the basis that if I've got to adjust the main, then I have to go forward to adjust the genoa (but I'm sure it would work fine pointed backwards if that's what you like). The mainsheet seems very reluctant to twist, which is great, as the old one used to all the time (which reduced efficiency still further).

My only misgiving is that the shackles which these (60mm) blocks come with seem tiny by comparison to the originals, even though the spec says the SWL is adequate. (We're masthead too).

Hope that helps.

Tom
'Nightlife'


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