Author Topic: Rotating mast cord  (Read 444 times)

Mattybaby

  • *
  • Posts: 16
  • Vibes: 0
Rotating mast cord
« on: August 20, 2017, 07:38:54 AM »
Could someone please post a picture of the way you tie the cord that keeps the mast from over rotating? Or do you do something differently? I've tried several different methods with no luck. A little piece of cord seems rather silly and any stopper knot doesn't want to stay in place.

tpdavis

  • *
  • Posts: 253
  • Vibes: 8
  • Navy Nuke-~8K sailing miles under the keel
Re: Rotating mast cord
« Reply #1 on: August 20, 2017, 11:02:09 AM »
I'm surprised your stoppers aren't staying in place.  Perhaps your cord is too slippery?  In any case we used two ends coming from either side of the clevis tied together so they met in the middle, then we added stoppers to each end and shoved both into the slot.  Easy.
R/Thom
SeaRail 19
Former F24 MK II Single Hand Racer
Former Triak Sailing Kayak
Former Hobie Getaway
Former Weta Crew
Former Windrider 17 Crew

Mattybaby

  • *
  • Posts: 16
  • Vibes: 0
Re: Rotating mast cord
« Reply #2 on: August 26, 2017, 09:37:23 AM »
Can you send a picture?

lt4supr

  • Capt.Rob
  • *
  • Posts: 927
  • Vibes: 15
Re: Rotating mast cord
« Reply #3 on: August 26, 2017, 10:33:59 AM »
Maybe change the cord.I have never had a figure eight knot come undone
WR 17  #305.
Sr class chairman

tpdavis

  • *
  • Posts: 253
  • Vibes: 8
  • Navy Nuke-~8K sailing miles under the keel
Re: Rotating mast cord
« Reply #4 on: August 26, 2017, 11:58:53 AM »
figure 8s can roll (but they don't do so very often); stopper knots won't.  Can't post a picture since neighbor sold the boat. 
R/Thom
SeaRail 19
Former F24 MK II Single Hand Racer
Former Triak Sailing Kayak
Former Hobie Getaway
Former Weta Crew
Former Windrider 17 Crew

Mattybaby

  • *
  • Posts: 16
  • Vibes: 0
Re: Rotating mast cord
« Reply #5 on: August 26, 2017, 10:35:55 PM »
The knot is not coming undone...it just won't stay in the grove. I'll take a picture tomorrow and post to help explain my issue.

lt4supr

  • Capt.Rob
  • *
  • Posts: 927
  • Vibes: 15
Re: Rotating mast cord
« Reply #6 on: August 27, 2017, 02:28:18 PM »
Get a thicker line.
« Last Edit: August 27, 2017, 02:44:46 PM by lt4supr »
WR 17  #305.
Sr class chairman

tpdavis

  • *
  • Posts: 253
  • Vibes: 8
  • Navy Nuke-~8K sailing miles under the keel
Re: Rotating mast cord
« Reply #7 on: August 27, 2017, 05:25:35 PM »
Yah, I think 3/16" is what we used.
R/Thom
SeaRail 19
Former F24 MK II Single Hand Racer
Former Triak Sailing Kayak
Former Hobie Getaway
Former Weta Crew
Former Windrider 17 Crew

curtis

  • *
  • Posts: 61
  • Vibes: 3
Re: Rotating mast cord
« Reply #8 on: September 01, 2017, 07:05:12 PM »
I jam the free end of the downhaul line into the groove as a stopper. The rotator line only wants out when there is no pressure.

Andy, Seattle

  • *
  • Posts: 64
  • Vibes: 4
  • Mmmm.... Coffee
Re: Rotating mast cord
« Reply #9 on: October 21, 2017, 12:39:04 PM »
I have a method that I think answers all the concerns:





I took a 1 foot piece of 4mm Dyneema line and ran the ends through two hole drilled in the mast base.  These holes lined up with the supports for the main halyard sheeve.  The ends of the Dyneema were secured with stopper knots.
The loop is passed through the notch in the mast ball support. The length is adjusted by adding or subtracting washers as needed to obtain the proper mast rotation.  A carabiner clipped through the loop keeps the washer from falling off.  The carabiner can be attached to the rod supporting the mast ball support to keep it from coming loose.

Attaching and removing the limiter from the mast ball support is simple; the line is thin enough to easily slip in and out of the slot. Adjusting the length is also child's play, as washers can be added or subtracted in seconds without fuss. Clipping the carabiner to the pin keeps it in place.  I have used this for a few months and several sails and there are no signs of wear on the Dyneema; I have no prior experience with this type of line but it is supposed to be bullet-proof.

Cheers.

FrankP

  • *
  • Posts: 284
  • Vibes: 4
Re: Rotating mast cord
« Reply #10 on: December 06, 2017, 09:27:50 PM »
Nice idea Andy. I will do the same next season. Thanks.
There is nothing more exhilarating and relaxing than sailing.

2015 Windrider 17