.

Forgot password

Looking for a mainsail to Newbridge Coromandel

  • 18 Jun 2026 07:28
    Quote
    Message # 13644111
    Anonymous member

    Hi friends, im looking for a mailsail for a Newbridge Coromandel.

    If you have one in the storage room, im grateful to buy it

    Im in Spain

    Thanks

    3 files
    Last modified: 18 Jun 2026 07:38 | Anonymous member
  • 18 Jun 2026 15:29
    Quote
    Reply # 13644207 on 13644111
    Anonymous member (Administrator)

    Jose,
    have you gotten in any sailing with the present junk sail? I see that you plan to use your boat for daysailing. This means mainly sailing from A to A  -  and that again means that you will be sailing close-hauled much of the time.

    The second-hand sail you will be offered will most probably be flat. These Newbridge boats from the seventies have ensured that the JR still has a bad reputation in the UK. Undersize, flat JRs, fitted on small boats with first-generation bilge keels will always struggle with sailing to windward. Even coming about to tack can be a lottery.

    Dare I suggest that you make a new sail yourself? All that your sailplan needs is a couple of extra sheets, showing how to create camber (bagginess) in each panel. I can assure you that this will turbo-charge that rig (photo below)
    For that small sail, you can use lightweight fabric, and an ordinary domestic sewing machine will cope just fine.
    Think it over.

    Cheers,
    Arne


    (my album, photo section 8-26)
  • 19 Jun 2026 09:49
    Quote
    Reply # 13644585 on 13644111
    Anonymous member (Administrator)

    Just for fun, now I traced Jose’s sailplan in my QCAD program and then added a sheet 2 and 3 to be used for lofting the sail

    Sheet 3 shows the ‘barrel shape’ curves I add to create camber in each panel.
    The procedure to find the Round which produces the wanted sail camber goes like this (using my chain calculator):

    • 1.      Start with deciding the max camber you want (in mm). I aimed for a camber/chord of 8%, giving a max camber = 3500mm x 0.08 = 280mm
    • 2.      The Chain Camber = sail camber x 1.20, = 280mm x 1.20 = 336mm
    • 3.      When bringing this number, 336mm, plus the batten distance 800mm to my chain calculator, produced a max round R = 160mm

    A sheet 4 of this sailplan (with batten pockets in it) has to wait until I learn about the position of the mast.

    Cheers, Arne

    PS: More about sewing the sail can be found under TCPJR, Chapter 5.


    (see album, Arne's sketches section 9)

    Last modified: 19 Jun 2026 18:11 | Anonymous member (Administrator)
       " ...there is nothing - absolutely nothing - half so much worth doing as simply messing about in junk-rigged boats" 
                                                               - the Chinese Water Rat

                                                              Site contents © the Junk Rig Association and/or individual authors

Powered by Wild Apricot Membership Software