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rope-only trim system

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vakiter
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rope-only trim system

Postby vakiter » Sat Feb 13, 2021 7:23 pm

inspired by jeff howards chinese-fingertrap, rope-only trim system, https://youtu.be/PjIl46kaxC8?t=212. ( which i found out is called a whoopie sling https://www.animatedknots.com/whoopie-sling-knot)

by adding an attachment to the other side of the depower line, you can get re-powered up by pulling the other side of the slack strap. you could cut the loop if you wanted two straps. one strap for more and another for less trim

here is a video,
https://www.dropbox.com/s/kgx6ywgz6mzrj ... t.mp4?dl=0

so you get a rope-only trim system,

havent tested it yet.

(this should be in gear builders, but i already wrote the post )
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2021-02-13 13.08.19.jpg
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direnc (Sat Feb 13, 2021 7:46 pm) • Matteo V (Sat Feb 13, 2021 7:54 pm) • jonysan (Sat Feb 13, 2021 8:36 pm) • Regis-de-giens (Tue Feb 16, 2021 12:41 am)
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Vinda
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Re: rope-only trim system

Postby Vinda » Sat Feb 13, 2021 8:28 pm

A terrifying bit of ware potential with this. A Prusik Knot might be a better option but still looks dodge as.

I am actually worried for you

Herman
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Re: rope-only trim system

Postby Herman » Sat Feb 13, 2021 9:01 pm

Nice way of slackening the running splice as I call it. I would prefer a different coloured line for the trim out line, from experience with the never ending system, it is a bit of a pita if everything is the same colour. Maybe join it to the trim in strap with a fisherman knot.

I have built a similar prototype and am waiting to use it once my bar with the never ending system needs replacing. I am confident that the trim in will be smooth and precise but I don’t know how precise and smooth the trim out will be, not that this aspect is particularly important as long as it functions. I would be interested to hear how you find it.

nixmatters
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Re: rope-only trim system

Postby nixmatters » Sat Feb 13, 2021 11:27 pm

There is a post on the running splice cleat.
viewtopic.php?t=2403316

I never bothered to make one with the additional release line, but that's what I believe can make the running splice cleat a decent alternative to the clam cleat system.

You'll be better off replacing that ring with an original power bracket, whatever the brand.
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Breze
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Re: rope-only trim system

Postby Breze » Sun Feb 14, 2021 11:23 am

Running this system for a year now. On the foil, with 10m Soul & 58cm depower i rarely use it, but it works.
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vakiter
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Re: rope-only trim system

Postby vakiter » Sun Feb 14, 2021 2:51 pm

cool. thanks the repsonses. i figured a few people had played around with this type of mod. would be cool to have a wiki, a lot of great ideas buried deep in this forum.

does anyone know of a rule of thumb on the spliced part length? like 1cm/100kg , probably also braid specific (9 vs 12 strand)

Herman
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Re: rope-only trim system

Postby Herman » Sun Feb 14, 2021 3:25 pm

I have read that at least some manufacturers regard 12 strand as optimal for splicing diameters suitable for centre line and leaders. 16 strand has a relatively bigger hollow in the middle and I use that for bridle line. Not seen any data on holding power other than 72xdia or similar for full bury. Personally I intend to start out with 70mm because it happens to be the length of my thumb!
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tomtom
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Re: rope-only trim system

Postby tomtom » Sun Feb 14, 2021 7:43 pm

Breze wrote:
Sun Feb 14, 2021 11:23 am
Running this system for a year now. On the foil, with 10m Soul & 58cm depower i rarely use it, but it works.
Image
mee too
- using it extensively on all my kites for some years


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