Subject: Re: [harryproa] Re: Sangduennoi
From: Rob Denney
Date: 10/11/2011, 8:20 AM
To: harryproa@yahoogroups.com.au
Reply-to:
harryproa@yahoogroups.com.au

 

Nice name, particularly tonight when it is nearly full and shining through my office window.  


When you try it without the jib, use the tell tales on the main the same way you would on the jib, although maybe have them a little further aft so the mast is not interfering.  the more telltales the more accurate the story.    Also sheet it at a similar angle to the jib.  Too tight and it will stall, particularly when you are just getting going.  

 Leeway is difficult to measure via the wake.  Better is a thin piece of line attached to the middle of a protractor and trailing over the back.  Mount the protractor on a beam with the angles outboard.  Once you are hard on the wind, it will show the leeway very accurately.

rob

On Tue, Oct 11, 2011 at 10:58 PM, Herb <squirebug@yahoo.com> wrote:
 



Good memory Doug!

Actually Sangduen means Moonbeam and Sangduennoi means Little Moonbeam. Thai doesn't conjugate for singular or plural so it could also be Little Moonbeams.

There is only 1 rudder in the water at a time, so the way the rudders point probably isn't it. I looked at the wake for leeway and didn't see much - < 10 degrees I am pretty sure.

Will take some better pictures next Sat. and try with and without jib. Also use the GPS.

Thanks for the advice.

Best regards
Herb



--- In harryproa@yahoogroups.com.au, Doug Haines <doha720@...> wrote:
>
> I belive that it is moonbeams
>
>
>
> ________________________________
> From: Rob Denney <harryproa@...>

> To: harryproa@yahoogroups.com.au
> Sent: Tuesday, 11 October 2011 9:00 AM
> Subject: Re: [harryproa] Sangduennoi
>
>
>
>  
>
> Congratulations on your first sail!  Windward performance is complex.  Some more information, and especially photos would help.  You may already be doing some or all of the following, in which case, my apologies, ignore it.
>
> Halyard tension on jib and main should be firm.  More than pulled tight by hand, less than a winch.  A 2:1 tackle should be about right for light air, more for heavy.  
>
> How are you sheeting the jib?  It needs to be tight with an angle to the fore/aft line of about 10 degrees for starters.  Put some tell tales (most sailmakers web pages have instructions on where to put them, but about 10% of the way back from the leading edge is close) on it and adjust the fore/aft trim  so the top telltales break at about the same time as the lower ones.  Then trim the main to just off the centreline.  Tell tales on it are not so obviously helpful, except for one on the leech end of the top batten.  Sheet the main in until this streams aft about half the time.    
>
> Check the rudder(s) are both pointing straight ahead.  If not, adjust your body position until they do.  Remove any removable windage and weight until you have the sailing sorted, then it can be replaced.
>
> Make sure the rudders and hulls are clean and smooth.
>
> Take lots of pictures and post them so we can have a look.   Best ones are from the middle of the sail looking upwards.  Note the point of sail (reach, close hauler, run) and the breeze strength.   A huge amount can be learnt from these if there are draft stripes or battens on the sails.  If not, use a line of black electrical tape at 25%, 50% and 75% of the way up the sail.
>
> Ignore any of the above that doesn't apply, ask any questions that I haven't covered.
>
>
> What does Sangduennoi mean?
>
> regards,
>
> rob
>
>
>
> On Tue, Oct 11, 2011 at 10:31 AM, Herb <squirebug@...> wrote:
>
>
> > 
> >Dear All,
> >
> >Sangduennoi (nee Sidecar) entered Thai water for the second time last Sat (8 Oct.)
> >
> >The first time (1 Oct.) was an embarassing near disaster due to lack of gas in the outboard and a broken ruddershaft sleeve. Nearly went on the breakwater rocks. In retrospect it was funny - not so much at the time.
> >
> >The second time was much better and we had an enjoyable day in winds less than 10 knots. Since the mast was shortened after being broken we are limited to the first reef, so we didn't go very fast even with both job and main up, but we did go.
> >
> >Only concern at this point is that we couldn't go to windward at all well. I estimate our best shut was about 120 degrees. This wasn't by compass or GPS, but there are several islands and headlands that make estimating angles pretty easy in the Ocean Marina area (Sattahip near Pattaya - about 12N 100E). Any suggestions on how to improve windward performance?
> >
> >Don't have any pictures yet as I accidentally deleted them from the phone.
> >
> >Best regards
> >Herb
> >
> >
>


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