Hector, according the type of junk sail the centre of effort can be very different.
On the Tiki46 Apatiki of our Belgium friends, the masts are at lest 1 m more in the front than mines because they have a more classical junk sail with long battens at the opposite of mine which is taller for the same sail area.
The best is to look on your sail plan the position of the sail center of effort (CE) and to design a junk sail in order to have its CE on the vertical of the previous CE and according the position of the masts.
I have just been sailing my Tiki21 again here in India. I must say it is interesting how much extra power the smaller foresail makes, especially going to windward. (schooner-rigged, both masts have shrouds/stays as they are standing on the crossbeams). Ideally I still like to put masts in the hulls, with tabernacles for getting mast down under bridges. I wish we could hear more about Pete Hill's new catamaran junk. Also hope that Bretrand is close to completion with his big project!??! Best wishes to you Bertrand! Regards
Bertrand FERCOT
Hector, according the type of junk sail the centre of effort can be very different.
On the Tiki46 Apatiki of our Belgium friends, the masts are at lest 1 m more in the front than mines because they have a more classical junk sail with long battens at the opposite of mine which is taller for the same sail area.
The best is to look on your sail plan the position of the sail center of effort (CE) and to design a junk sail in order to have its CE on the vertical of the previous CE and according the position of the masts.
I suppose Tom and Susi can help you and you can visit the Junk Rig Association web site : http://www.junkrigassociation.org/
I recommend the book : "Practical Junk Rig , Design Aerodynamics and handling of HG Hasler & JK McLeod.
Good luck
Bertrand
Feb 26, 2011
Paul Calvert
Hello Junk rigged people!
I have just been sailing my Tiki21 again here in India. I must say it is interesting how much extra power the smaller foresail makes, especially going to windward. (schooner-rigged, both masts have shrouds/stays as they are standing on the crossbeams). Ideally I still like to put masts in the hulls, with tabernacles for getting mast down under bridges. I wish we could hear more about Pete Hill's new catamaran junk. Also hope that Bretrand is close to completion with his big project!??! Best wishes to you Bertrand! Regards
Paul
Jan 18, 2012
david duval-hall
hi all, just posted some photos up of our ex pahi 42, the rig really works well, any comments, please feel free, rgds david
May 27, 2012