Right.
I probably have this thread in the right category now. I will redirect viewers from the other page to this. That is if they are interested.


Ron

You will have to wait till next week for a response Nikrum. Paul has gone sailing!

We have had a beautiful day here today in the Goldfields so all looks well for a great long weekend regatta, camping and catching up with friends.

I am sure the guys will post all about it next week.

cheers Susan

Ah! That explains the great silensio.
Ta susan

Hey! Thanks for the call Brian,
That chat is just what the Doctor ordered. Truly Great Stuff. Once I understood what the cut was all about, that info will make the job so much easier. In these pages is all the info that is required to cut a sail but for one thing. That is; Getting the Cutter to understand the why of the cut i.e.

To Flatten the Sail so that it forces the mast to do all the work (Shape the sail, tension it, and also that the Crockett Down-haul Rig should be used in conjunction with these sails).

Quite possibly all that is in the Sail Making Pages as well, however if some Astute Knowledgeable Person were to take that info, go through it with a fine tooth comb, List it as Dot Point and consign to its own Topic Line and Closed from Replies. This would save members, such as yourself and Paul having to repeat yourselves to every potential Sailor.. "Well! Hello Sailor" [}:)]. Just a thought!
Mind you it was great talking you one on one, as sifting the info out of the Cross Talk tended to add confusion.

Thanks for that and regards,
Ron

Ok! So now the Sail Pocket is unpicked as shown in the pic's below.
I thought it a good idea to lay out one of my masts along the Tip to Down-haul point
The mast is 4.560Mtrs long from memory






That should give you Landyacht, also have a look at where the Chassis is at.
Thanks
Ron

Thanks Landyacht,
That is about where I was thinking of going nut what are you saying by not unpicking the top 250mm?? Is that where we start the new Luff Curve??
Further on the Mast Step. How critical is the angle? I had a mishap and was unaware of it until it was too late but the Step pulled back as I was welding it in place and finished up with an angle of 11 degrees> Not a Happy Chappy

Other than that all looks good.
Ron

Thanks for that aus230, I read in another thread that it should be 7degrees. and I started to get the cold sweats
Here hang on a jiffy I just took the % to mean degrees Right?

Ron

Thanks aus',

What is your opinion on Carbon Fiber Axles as shown in pic's in my profile?? My figuring gives a good clear axle strength wise and considering the horrendous pressure they are put under during Down-haul, particularly those masts used in the high performance High Speed Mind Surfers. Though it is a bit dangerous to work with ie. Masks should be worn when cutting the material and care taken when handling broken carbon materials. Splinters, you know other than that it an easy product to play with. Anyway, anyone that is willing to play with Raw Gas/unregulated Burners and Smelter Furnaces don't need to worry all that much Bronze @ 1900deg is fun to play with.
Ron

given that your building bigger than a mini,and using a recut sail i would be inclined to stand it more upright. re the template , I lay it on the sail from the spot where I cut the foot. when youve made your template perhaps put up a photo of it on the sail.
In regard to the axles, nebs is right about the flare in the metal.
personally i would glue the 2 sections together as the chassis you are building will place significant torsion on the axles, and we dont know anything yet about the torsional quialities of those masts

just looking at that sail, you could completely unpick that pocket

Landyacht,
This is a possible re-cut of one of those 11m sails using the

rear of the sail to get the flattest part. I used COREL Draw to do this.
What are your thoughts on this (Just thinking to the future.
Ron

Thanks Gizmo,
OK! Well I have two of them and was thinking on the lines of a Tall Narrow one for windy days and as much speed as can be bled from the sail???? I may have to wrong but I've been looking at the Wing Sails
Do you mean to pull a heavier curve in to the Luff edge/Mast? That would be a hell of a thing to down-haul given the rigidity of the Gastron Mast..
Do you know anything about these sails. I've only had it unfurled a couple of times bu never noted the shaping of the rear section other than it has a bit of shape.
Ron

Anyway what are you doing at home// Surely there is a wind somewhere?

Just thinking ahead..
OK! I laid down some Heavy Paper to make a template of that sail?Hmmmmm Not a lot to remove.. We will see what we will see shortly.
How come you aren't out chasing the wind??
Ron

unpick all that edging as you will want to put it back on . that heavy webbing on the front of the batten pocket is really thick and too tough to sew with most domestics , so dont try reusing unless you have an industrial machine.
before you get all keen about reusing the whole sail , remember your mast length.
If that is the boom you plan to use remember to make you seat stiff enough to rear sheet as that boom will be too flexible for effective centre sheeting

when you decide where your foot will be that is where you start the bottom of you template from

Ok So now I.ve Scissored and Taped the sail. At the foot the boom covers the reinforcing Strips taped in place. It looks pretty good to me though what would I know as this is a first for me as well.

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I added the Carbon jointing for interest sake. I am researching an Epoxy System that is the stuff of Nightmares and Horror Movies. If it works as I suspect it will tear the machine apart before it fails in this application

www.seabreeze.com.au/forums/post.asp?method=Reply&TOPIC_ID=70796&FORUM_ID=68

There is another thing. The Tack Eye Down Haul. I was thinking of having the sail maker sew it back into the sail with a little added Reinforcement. As theses sails don't seem to undergo the degree of pressure of the Wind Surfers it should hold up well but I will be advised those in the know.

Ron