Orion, International Folkboat.

<< First  < Prev   1   2   3   4   5   Next >  Last >> 
  • 18 Jul 2020 16:10
    Reply # 9110439 on 6141347

    Hi Hard. I fixed it last year. Like you suggested it turned out that the pendulum  blade had too much balance. It working fine now. 

    Last modified: 18 Jul 2020 16:11 | Anonymous member
  • 18 Jul 2020 10:34
    Reply # 9110072 on 6745688
    Frederik wrote:

    It's the first time for me to play with a selfsteering device. I'll have to spend some more time finetuning and do adjustments.  So far it works great on all courses forward of the beam, but with the wind aft this thing seems to have a mind of its own. It’s like the pendulum is taking control instead of the vane doing its job...suggestions anyone?

    I had a similar problem and what helped was downsizing the pendulum, also fine tuning the balance of the pendulum. On the photo you can see the change I made and it helped a lot. The force even in really slow movement is huge so there is no need for a big pendulum. But it's much more important to have a bigger vane, especially in very light conditions (also if the wind is from the aft).

    1 file
    Last modified: 18 Jul 2020 10:36 | Anonymous member
  • 17 Jul 2020 09:07
    Reply # 9107731 on 6141347

    That looks pretty good up there Arne.

    My wind indicator is the Orion flag. 


    1 file
    Last modified: 17 Jul 2020 09:08 | Anonymous member
  • 16 Jul 2020 19:16
    Reply # 9106785 on 6141347
    Anonymous member (Administrator)

    I surely agree, Frederik.

    See attached video clip.

    https://www.dropbox.com/s/448arab7p6sksgb/20200529_161426.mp4?dl=0

    Here I recently even fitted some 2m long ones for the top section (only for that trip). Slieve McGalliard was curious to see what happened to the airstream up there. Also note the home-made wind-indicator at the mast top.

    Arne

    Last modified: 16 Jul 2020 21:41 | Anonymous member (Administrator)
  • 16 Jul 2020 17:11
    Reply # 9106558 on 6141347
    1 file
    Last modified: 16 Jul 2020 17:16 | Anonymous member
  • 16 Oct 2018 08:17
    Reply # 6745688 on 6141347

    The selfsteering is a Holland winvane, aka Bouvaan. 

    I picked up a secondhand one, last time I visited the "vaderland" (the Netherlands).

    They come in different stages of completion. 

    It's the first time for me to play with a selfsteering device. I'll have to spend some more time finetuning and do adjustments.  So far it works great on all courses forward of the beam, but with the wind aft this thing seems to have a mind of its own. It’s like the pendulum is taking control instead of the vane doing its job...suggestions anyone?

    The photos are a bit distorted. The third one shows a little device I’ve made so that I can move the steering lines up and down the helm, in order to find the best place of attachment. 

    I’ve set it up with the lines attached way forward on the helm so as to avoid oversteering with the wind aft of the beam. Not that it helps a lot....

    3 files
    Last modified: 16 Oct 2018 08:54 | Anonymous member
  • 16 Oct 2018 08:07
    Reply # 6745563 on 6141347

    Hi Paul

    I have done some measuring..

    The maximum camber is at about 35 %.

    Balance about 15%

    The sail came out on the large side so I take the first reef halfway up with running topping lifts, mastlift and tackline. 

  • 15 Oct 2018 10:28
    Reply # 6730842 on 6730062
    Anonymous member (Administrator)
    Anonymous wrote:

    Good morning Frederik and Arne. Your sail looks very good. Where is the point of maximum camber on the sail chord?

    Paul


    Hi, Paul, on my sails i aim for about 35% from the luff. It could well be that it is more efficient with it further aft, but I found on my first junk, Malena, that the actual CP 'followed' the max camber point. The present choice of position is therefore mainly to avoid weather helm problems.

    Arne

    PS: Orion's sail was made by a sail maker, so I cannot tell where he put the max camber point...

    Last modified: 15 Oct 2018 10:33 | Anonymous member (Administrator)
  • 15 Oct 2018 09:31
    Reply # 6730062 on 6141347

    Good morning Frederik and Arne. Your sail looks very good. Where is the point of maximum camber on the sail chord?

    Paul

  • 15 Oct 2018 08:40
    Reply # 6729371 on 6721615
    Anonymous member (Administrator)
    Anonymous wrote:

    https://www.dropbox.com/s/d26toyhhwao2wt5/
    Junk%20Orion%20-4.mp4?dl=0


    I’ve uploaded a short clip. Does this work?




    Works fine and looks good, Frederik! Tell us a few words about
    your self-steering, please.

    Arne


    Last modified: 15 Oct 2018 08:41 | Anonymous member (Administrator)
<< First  < Prev   1   2   3   4   5   Next >  Last >> 
       " ...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