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Race lines

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RichR2
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Race lines

Postby RichR2 » Sat Jul 13, 2019 12:05 pm

I'm currently using a cabrinha bar and lines together with extensions to 30m for light winds. I'm considering getting a set of 30m race lines to replace this. Has anyone moved to using race lines for light winds and did you really notice a difference? Dont want to waste money on something that I wont notice a discernible difference with.

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Re: Race lines

Postby elguapo » Sat Jul 13, 2019 12:22 pm

yes.

maybe it is all mental.. but long racelines seem to help(me) especially with waterstarts.


racelines=less drag
less drag=i can move my kite faster than normal

kite moving faster than normal=more force?= i could use a smaller kite(in general)

smaller kites doesnt get in the way(in surf) or throw me if i make one of my frequent errors (transitions)

so racelines allow me use the smallest kite possible (or...at least i think they do)
also, drift should better with smaller kite...while still keeping that extra pull to get the butt out the water

RichR2
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Re: Race lines

Postby RichR2 » Sat Jul 13, 2019 5:14 pm

Yeah, everything I keep telling myself 👍

tkaraszewski
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Re: Race lines

Postby tkaraszewski » Sat Jul 13, 2019 7:17 pm

The frontal area of a 1mm line 30m long is 300 sq cm. Four of these lines have an area of 1200 sq cm, or 0.12sq m. If you compare to 2mm thick lines, that's half as much, or saving the same 0.12 sq m.

That's the equivalent of dragging a little parachute roughly 20cm across from one of your lines (probably about the same size a plastic shopping bag stuck on a line, actually). It's not a huge amount of material, but you could certainly imagine it making your kite feel more sluggish hanging off the top of one of your kite lines.

This actually sounds like more than I would have guessed and makes me want to try race lines.

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Peter_Frank
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Re: Race lines

Postby Peter_Frank » Sat Jul 13, 2019 9:48 pm

I dont know why you say "Race lines".

Well, I do, as you mean "Thin" lines.

As race lines need to be able to withstand even more load than most other lines, so usually not superthin.

I think it matters at the ultimate low end especially.

Use 0,83 mm frontlines and 0,6 mm rearlines myself sometimes, when at the utmost low end.

Think the difference is mostly mentally though, but it matters too, and just the thought of the little gain it delivers, is sweet of course :thumb:

Only thing is, some superthin lines tends to "howl", the faster you go the louder :rollgrin:

8) Peter

RichR2
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Re: Race lines

Postby RichR2 » Sat Jul 13, 2019 10:14 pm

Yes, I did mean thin, 1.3mm and 1.5mm ..didn't know you could go down as low as you have Peter 😲

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Re: Race lines

Postby Mossy 757 » Sun Jul 14, 2019 3:34 pm

I have a set of lines that are all 1.1mm SK99 Dyneema and the first time I flew them it was like I had cut loose an anchor from my kite. I now have a bar with 1.5mm front lines and 1.1mm flying lines and I think that's the sweet-spot for freeride.

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Re: Race lines

Postby nixmatters » Sun Jul 14, 2019 4:32 pm

RichR2 wrote:
Sat Jul 13, 2019 12:05 pm
I'm currently using a cabrinha bar and lines together with extensions to 30m for light winds. I'm considering getting a set of 30m race lines to replace this. Has anyone moved to using race lines for light winds and did you really notice a difference? Dont want to waste money on something that I wont notice a discernible difference with.
Just a heads up to a possible safety issue in case you also change the 8m lower front line.
The power bracket seat is designed exactly for the lines Cabrinha use and any change in the thickness of the lower front line (or the 1X flagging line) will result in different size of the loop-to-loop knot that sits in the power bracket seat.

1. Using a thicker lower front line makes it very difficult to pass the spliced loop through the power bracket seat and the QR might not work under certain load from the kite.
That's not your case, but I'd rather mention it as it's a safety concern.

2. A thinner lower front line will make the loop-to-loop knot smaller and most probably weaker. That means - even if you get a 300+ kg SK99 line, the max breaking strength at the knot might be a lot less.
Worst case - with 1.1mm SK99 + worn out loop of the 1X flagging line, that knot may get jammed in the power bracket seat - no QR from this point on.

Happy to hear comments from someone who used a thinner line. I only have experience with slightly thicker.

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RichR2
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Re: Race lines

Postby RichR2 » Sun Jul 14, 2019 5:00 pm

Thanks for the safety points but if I go for the thin lines (looking likely) I'll make up a separate bar (have an old gong bar) just for those and have two bars...a 22m thick set and a 30m thin set


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