Messages

Stu
Obviously if the boat is wooden and is a four plank boat it qualifies. The oversight was forgetting to inlcude it as an allowed Glass design.
The qualification was worded so to not allow the glass ( smoother Chapters and the like)
Kevan Bloor

Dan
Some futher info;

The certifcate records show that 3342 had an original certificated  luff length of 5476 which would be workable for the newer sails without any mods. If you measure, from the old mast, from the top Black band to the position of the gooseneck on that mast and the measurement is longer than 5466, then the same position will be ok on the new one.
 

Kevan

Hi do you know what boat (sail number and section of mast the new sails were made for. The sails would have been made to fit a specific Mainsail Luff length ( though this is marginally flexible ) It would be good to know what this dimension is.

If you have no information if you put the new sail on the lawn and hold the head and tack and pull until the sail is just taught (no wrinkles) and measure the length. This would give you a pretty good idea of the luff length you need to go for.

If you contact the sailmaker who made the sails he hopefully could advise you of the mast section the sail was made for and also the luff length.  

On the new mast the distance from the top band to the gooseneck can be slightly longer than the sail luff measurement, I used to advise that the extra length should be around 50 to 80mm.

If you are able to measure the width on the mainsail, see Class rules, this would enable you to work out roughly where the band on the boom needs to be.

Hope this is a help but if you want more information either ring or email me. [mail=ntoa@ndirect.co.uk]ntoa@ndirect.co.uk[/mail] 

Kevan Bloor - Certification Officer (ex Alverbank Sails)

We are sad to report that Richard Roscoe died last Friday 16th August and we understand the funeral will be on Thursday August 29th.

Richard was well known in the Class in the late 50's and 60's and is most notable for designing and building N1664 Squid, in which he won the Yachting World Silver National Points Trophy at Burton Week in 1960. More than 50 boats were subsequently built to that design.

Janet Bloor
Hon. Secretary

Steve
The only dimensions written on the mainsail are the cross widths.
The dimensions on your certificate are Luff =distance between the bands on the mast.  Foot= distance from the aft side of the mast to the band on the boom.
Any sail must be  fit inside these bands and it should not be possible, when racing, to pull the sail past the inner edges of these bands.
With regard to the jib it is important, as I mentioned above that the geometry of any jib you fiton the boat fits the sheeting arrangement you have.
 
Kevan Bloor

Hi Steve
In the 60's the 25/65 Ratio was always the favoured rig for inland sailors and 27/63 or 30/60 for the sea sailors. In fact with the change in measurement on sails with metrication etc. the current Ratios are not that different with current jib area around 2.2-2.3 sq mtrs. A 25 sqft jib would measure around 2.28 sq mtrs.
In fact the most important thing to look at with either new or old sails is the jib sheeting arrangement. The track on the back of the Foredeck is the least favourable option and almost certainly any second hand sails would probably not fit this configuration.
Even in the 60's this was not most popular method of sheeting the jib. Where the jib clew eye is very close to its fairlead the actual geometry of the sail become critical and consequently mast rake changes have great effect on the jib.

It is far more important to be able to move the sheeting position fore and aft than inboard to outboard. Always remember that the starting point for sheeting the jib is to have line of the jib sheet running from the fairlead throught clew eye of the jib up to a point on the luff 45-50% up the luff of the sail.

If you are checking the sails you have it would be good to do the reverse of this. Lay any jib you have, find the 45 and 50% point on the luff of the jib measured from the tack and then extend two line to the clew eye and mark the lines on the sail for the last 300mm or so at the clew. Incidently this  usefull for any jib on any boat.
When you then set the sail on the boat ( with it rigged properly you can then see where the jib fairleads need to be in the boat.
I would advise you mark these lines on any sail you have as this is a visual guide as to what whether you are sheeting the jib correctly.
Some sailmakers will mark this or similar reference lines on a new sail anyway.
 
Hope this is helpful
 
Kevan Bloor

Simon. Camping will be available on Friday night as long as you turn up early.  There are some sailing activities taking place then and someone could meet you and arrange for a key.  The site will be locked so a key is needed for emergencies.  Nearer the time we would need to know names of those wishing to camp on Friday.
Kevan Bloor (on behalf of Burton Sailing Club)

Carsington Twelve Open Meeting is on Sunday 19th May, three races, two to count.  First race will not be before 11.00am.  This open is in conjunction with the Laser 3000's and Vago.

Notice of Race available via the link on the N12 home page.  Carsington Water is near Ashbourne and is a reasonable travelling distance from Staunton Harold who are holding their open on Saturday.  The Laser and Vago meeting is also taking place on Saturday and they are arranging a BBQ on Saturday night (sorry not free) and if any Twelve sailors would like to take their boats over ready for Sunday, they are welcome to take part.

It would help if you could please let us know if you will be entering for the open and an indication of anyone also wanting to take their boat to Carsington on Saturday and/or participate in the BBQ.

Kevan Bloor

Simon
There will be camping and camper van space and there is no need to book in advance.  Camping is on an area next to the Club, on a first come first served basis, but they have not run out of space yet, albeit it might be a bit cosy!  Camper vans will be accommodated on the car park.
Kevan Bloor (on behalf of Burton Sailing Club)

Some more pics posted from TVSC
 
Kevan
 
 

I have posted some of the pics ,19  from the windy TVSC Meeting this weekend on the twelve gallery  TVSC sep2011.
Hope you can eccess them easily.
I will post more when I have edited some more.
 
Kevan


http://www.national12.org/gallery/thumbnails.php?album=84

Entry list updated with the 5 entries received in the last few days.  One or two more unconfirmed as yet
Kevan & Janet

 If anyone still requires accommodation for Burton Week at Brightlingsea the following may be useful:

Waterside Marina Holiday Rentals which are adjacent to the Club may be able to offer apartments for 4 people from Saturday to Tuesday checkout, the cost would be around £250.

Contact Jane or Philip Howden, philip@cddltd.plus.com for further details.

[BURTON WEEK BRIGHTLINGSEA]

BURTON WEEK BRIGHTLINGSEA
Today is the 14th July and it is only 6 weeks, 2 days to the first race!!!
Maybe more important is that the late entry fee kicks in on the 1st August.  Only 17 days to get your entry through our letterbox.
If you have lost your entry form you can download one from the Burton Week website.  Don't forget to book for the Burton Week dinner at the same time.
Please get your entry in so we can forge ahead with the sailing, socials and prize planning to make this a brilliant weekend.
Any queries please email us.
Janet & Kevan
 

A few years ago, some of you might remember, I made Terry Cooke a sort of tape drive Mainsail ( suggested by Steve Norbury) made  of 2 oz Kevlar laminate  with carbon tapes stuck on to help the stresses etc. I think this sail is still around and was quite successfull
The National Twelve rules don't have secondary reinforcing limits ( only Primary ) the body of the sail has to be capable of being folded flat. what is defined as flat is another story. But the sail passed measurement and only where the tapes converged together did you need to be carefull of the stiffening rule. We also used carbon tapes to reinforce the foot stresses from time to time.
Kevan Bloor