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JUNK -JIB

  • 13 Jun 2012 13:59
    Quote
    Reply # 965254 on 961266
    Anonymous member

    Yes, it would be double sheeted,  being 10' wide it gives a very easy angle and therefore low loads.  

    An idea for sheeting is to use a seperate sheet to each batten, ideally a very thin hi-tech rope.  So would give very little drag aloft.  They would all be pulled together (with thick gloves!!) or can be adjusted invidually.  The load on each would be quite low, so with a smallish sail, perhaps no winch needed. 

    Too much talking, must get sailing and / or experimenting.  (Only just got ready for the season, and it nearly mid summer!)

    Yes, an Aero rig would be rather good,  they were put on the Hirondelle 'Family'  the last iteration,  slightly enlarged, and 5x the cost second hand.

    Mark

    Last modified: 13 Jun 2012 13:59 | Anonymous member
  • 11 Jun 2012 23:53
    Quote
    Reply # 961688 on 961266
    Anonymous member
    This may be totally irrelevant, however here goes.  The Hirondelle was produced and marketed with an Aero Rig at one time.  I remember going and visiting the people who were doing it, but I can't now remember where and when.  jds
  • 11 Jun 2012 22:41
    Quote
    Reply # 961595 on 961266
    Anonymous member
    An interesting idea, Mark. There's no reason why a junk rig can't pivot on a stay, rather than on a mast. I think I recall that, way back, someone had a bipod mast with a junk rig on a central wire stay.
    Certainly the battens can be perpendicular to the stay, assuming that the sail is cut flat, with no camber in the panels.
    Sheeting might be a problem. You'd be giving away some of the foretriangle area to the sheeting system. How about double, port and starboard, sheets, as for a normal headsail?
  • 11 Jun 2012 17:42
    Quote
    Message # 961266
    Anonymous member

    Changing my Hirondelle to a junk would be benefical in all ways except when I come to sell, which may be soon(ish).  What would be easy would be try out some experiment by replacing the jib with a junk rig sail.  Has anyone else done so?

    The advantages would be reaching and off the wind when a pole would not be required. It would loose on overlap against a soft jib.   It could (and probably will) be a little wing-sail, so gaining back some loss to windward.  I normally use a working jib of about 2/3 the luff, so the sail could be no too high aspect. 

    A question is, would down ward sloping battens, perpendicular the luff (as standard Hasler) be a bad idea?  Horizontal a bit more dificult to make.

    As an experiment, it would be better than the Laser / Topper option, as there will be plenty of space to mess around when sailing.

    Cheers Mark 

    Last modified: 11 Jun 2012 17:44 | Anonymous member
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