Slieve McGalliard wrote:

Hi David,

 

Are the jib and main panels sewn to each other via a full length batten pocket or tied to each other or is the main luff tied to the forward end of the batten leaving the jib leech batten pocket loose?........ No, the batten pockets are separate, and the gap adjustable.

 

 

I'm assuming that the jib and main are connected via some sort of lashing?  Does anybody have a picture of a technique that worked?

Also:  the uppermost split panel's top is connected to a full length panel.  How does the split there get adjusted?  Or is that the one spot where the split is set without potential for later tweaking?

Hi David,

Please see comments below in Italics.

Hi, everyone.

I've been following the various threads about the Split Junk Rig since I joined the JRA and having recently acquired a cheap Wayfarer dinghy hull on which to experiment rather than maybe wreck my slightly better condition one, I've started to modify it to fit an unstayed mast to........

But the weather is turning too cold to do much outside, so I've being making a model split junk sail using Slieve's 45 degree shelf foot method......You should find it a worthwhile exercise. That has gone quite well, the camber has turned out very nicely and I've learned a bit more about sewing machines and tensions and the importance of being precise about setting up everything before engaging the "sew" button and also that there is a fair bit more to know about putting the whole sail together, which I didn't know until I started to do some sewing......'The truth of the pudding is in the eating!'.

Such as.......

Is the split between jib and main located aft of the mast or in front or split between? or does it make a difference ?.......Some photos seem to have it in front and others to the rear.......The luff of the main sail panels is supposed to line up with the centreline of the mast. The combined downhaul/ batten parrels should pull the rig to this position. Some earlier photos were a little loose.

I've made up 3, ¼ scale jib panels, and am about to make up 3, ¼ scale main panels, again using the 45 degree shelf method , but I presume this time I don't use any sheeting angle so as to bring the leech of the main panels into the battens at the rear...... The main panels are simple cambered panels, tight at the luff and leech and baggy in the middle.

But how are the jib and main panels attached to each other?.......The batten ends should be flush with the leech of the main panels. The luff end of the main batten pockets are tied off to the leech end of the jib batten pockets with the designed split set, and the luff end of the jib batten pockets should be tensioned to the front of the battens.

I know the jib leech itself is free to fly loose due to the sheeting angle incorporated in the drafting method, but is the leech end of the jib batten pocket also loose or is it attached to the main luff batten pocket?........ The jib batten pockets are tubular, and a tight fit on the battens over their full length, as are the main batten pockets. The batten pockets are attached to each other, but with the preset gap.

Are the jib and main panels sewn to each other via a full length batten pocket or tied to each other or is the main luff tied to the forward end of the batten leaving the jib leech batten pocket loose?........ No, the batten pockets are separate, and the gap adjustable.

Also, I was thinking of using webbing as the reinforcing method on the jib luff and main luff and leech.....What have other people people done to reinforce these areas?.... I prefer to use a bolt rope within the tabling so that the sail can rotate around the taut bolt rope when changing from tack to tack..I presume that the jib leech is reinforced by using (not too heavy) tabling.........I prefer simple tabling, but with the edges not parallel with the thread line of the material. I always place the thread line parallel to the leech as in normal sail-makers practice.

My knowledge of sewing and sailmaking has been zero up to this and what I know about sailmaking has basically been derived from the website, especially Slieve's and Arne's files, and also Emiliano Marino's "Sailmaker's Apprentice", which I can highly recommend....... Good luck with your experiments. You should fined it an interesting exercise.

Thanks for any replies which people might give.......

Regards, Dave.....

Cheers, Slieve. 

PS. Hi Edward, your posting appeared as I was writing my reply. I wouldn't rust to say too much about the jib mini battens (yet) as it may cause confusion, and may only be a 'racing' idea. By the way I have some mini batten material to discuss with you.

Cheers, Slieve.

PPS. I'm off to the grandchildren shortly so know your problems Edward. Cheers, S

Hi, everyone.

I've been following the various threads about the Split Junk Rig since I joined the JRA and having recently acquired a cheap Wayfarer dinghy hull on which to experiment rather than maybe wreck my slightly better condition one, I've started to modify it to fit an unstayed mast to........

But the weather is turning too cold to do much outside, so I've being making a model split junk sail using Slieve's 45 degree shelf foot method....... That has gone quite well, the camber has turned out very nicely and I've learned a bit more about sewing machines and tensions and the importance of being precise about setting up everything before engaging the "sew" button and also that there is a fair bit more to know about putting the whole sail together, which I didn't know until I started to do some sewing.......

Such as.......

Is the split between jib and main located aft of the mast or in front or split between? or does it make a difference ?.......Some photos seem to have it in front and others to the rear.......

I've made up 3, ¼ scale jib panels, and am about to make up 3, ¼ scale main panels, again using the 45 degree shelf method , but I presume this time I don't use any sheeting angle so as to bring the leech of the main panels into the battens at the rear......

But how are the jib and main panels attached to each other?.......

 I know the jib leech itself is free to fly loose due to the sheeting angle incorporated in the drafting method, but is the leech end of the jib batten pocket also loose or is it attached to the main luff batten pocket?........

Are the jib and main panels sewn to each other via a full length batten pocket or tied to each other or is the main luff tied to the forward end of the batten leaving the jib leech batten pocket loose?........

Also, I was thinking of using webbing as the reinforcing method on the jib luff and main luff and leech.....What have other people people done to reinforce these areas?......I presume that the jib leech is reinforced by using (not too heavy) tabling.........

My knowledge of sewing and sailmaking has been zero up to this and what I know about sailmaking has basically been derived from the website, especially Slieve's and Arne's files, and also Emiliano Marino's "Sailmaker's Apprentice", which I can highly recommend.......

Thanks for any replies which people might give.......

Regards, Dave......