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gmb13
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Postby gmb13 » Fri Apr 27, 2018 11:27 am
"UPDATE" The Video has been updated to include more detailed information.
Hi Everyone.
Back to the normal program.
I am happy to introduce a new video series. Kite Tech Tips. These videos will feature all my technical tips and tricks for Kites and Foils etc. The fist one is about how to to do a Brummel Splice on your kite lines.
https://youtu.be/Fo5lgO-DUk4
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Gunnar
Last edited by
gmb13 on Sat Apr 28, 2018 8:14 pm, edited 1 time in total.
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Sandras
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Postby Sandras » Fri Apr 27, 2018 1:06 pm
gmb13 wrote: ↑Fri Apr 27, 2018 11:27 am
I am happy to introduce a new video series. Kite Tech Tips. These videos will feature all my technical tips and tricks for Kites and Foils etc. The fist one is about how to to do a Brummel Splice on your kite lines.
Very nice video Gunnar!
Looking forward to your new series!
Some comments (just I find it easier that way):
a) If I have access to the other end of the line, I do the locking with another technique and I don't have to "Uninvert"
b) When it comes to burring the line in, I usually first pass it in and then unmake it (I also cut a few strands to have a smoother diameter change).
Some questions :
1) I do this with 4 or 5mm dynema to make pigtails. So far so good. Do you see any potential issue with it?
2) Is the bury length something to consider or is it irrelevant if there is a Brummel?
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jakemoore
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Postby jakemoore » Fri Apr 27, 2018 1:48 pm
Sandras wrote: ↑Fri Apr 27, 2018 1:06 pm
2) Is the bury length something to consider or is it irrelevant if there is a Brummel?
Bury length and taper are critical. The only thing the Brummel does is keep the splice from working its way out when there is no tension in the line. There are reports of Brummel splices pulling through if too short a bury from kiters and sailors.
http://www.samsonrope.com/Documents/Spl ... ce_WEB.pdf
A normal fid is 21 times the line diameter. The taper should be 1 fid length. The total buried line 3 fid lengths = 63 times the line diameter. A 3 mm leader or pigtail line needs 19 cm splice. A 5 mm central depower line needs a 32 cm splice.
Last edited by
jakemoore on Fri Apr 27, 2018 1:57 pm, edited 1 time in total.
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Sandras
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Postby Sandras » Fri Apr 27, 2018 1:54 pm
jakemoore wrote: ↑Fri Apr 27, 2018 1:48 pm
Sandras wrote: ↑Fri Apr 27, 2018 1:06 pm
2) Is the bury length something to consider or is it irrelevant if there is a Brummel?
Bury length and taper are critical. The only thing the Brummel does is keep the splice from working its way out when there is no tension in the line. There are reports of Brummel splices pulling through if too short a bury from kiters and sailors.
I try to do 80x the diameter and also taper a lot the ends but I did not see them in the video, therefore thought they may not be needed?
Gunnar, did the line that broke earlier this week, break close to the loop?
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jakemoore
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Postby jakemoore » Fri Apr 27, 2018 1:59 pm
I've seen bars and pigtails from more than one manufacturer with splices too short and hope that lock stitching will keep it together.
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Toby
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Postby Toby » Fri Apr 27, 2018 2:17 pm
Great idea Gunnar!
Keep posting!
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jakemoore
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Postby jakemoore » Fri Apr 27, 2018 2:25 pm
I just watched the video. This video shows a bury in the splice that is too short. Somebody is going to break a leader line and almost died.
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gmb13
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Postby gmb13 » Fri Apr 27, 2018 2:28 pm
jakemoore wrote: ↑Fri Apr 27, 2018 2:25 pm
I just watched the video. This video shows a bury in the splice that is too short. Somebody is going to break a leader line and almost died.
That is a 10cm bury. That is more than enough to hold the load.
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jakemoore
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Postby jakemoore » Fri Apr 27, 2018 2:32 pm
I'm not a cordell. But I did regurgitate the splicing instruction from Samson rope who makes Amsteel in post above. Respect to you Gunnar for putting the video out there for criticism, but I'm going with the instructions from the guys who make the rope. I'm also going to try to learn from the guys who have had a bad day after breaking leaderlines and halyards so as not to follow in their path.
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