Contact   Imprint   Advertising   Guidelines

making a safety line with a bungee inside - ideas

Here you can exchange your experience and datas about your home build boards
OzBungy
Very Frequent Poster
Posts: 2394
Joined: Fri Oct 21, 2005 11:35 am
Has thanked: 2 times
Been thanked: 101 times

Re: making a safety line with a bungee inside - ideas

Postby OzBungy » Sat Oct 17, 2020 9:09 am

There's lots of ways to do it. Most of the previous posts show how it is done. I've done most of them over the years.

I have discarded all my bungie safety lines. They're inherently unreliable. The bungie breaks. The thickened section has to stretch out before it goes through the bar and any fittings. I can't see any good reason for having it other than "it looks nice".

I simply use 2mm dyneema SK75 and splice a simple depower line. The weight of the leash on the end keeps the slack tidy. I have a very long trim bar. Even at extreme trim the end of the safety line hangs down neatly with the end of the leash. It always passes smoothly down the plastic depower tube. The only negative is you need to pull the depower line up so it sits neatly when you wind up the lines. Even that doesn't really matter, but I'm a bit obsessive about having neatly wound lines.

Herman
Very Frequent Poster
Posts: 795
Joined: Tue Jun 04, 2019 7:09 pm
Style: My Own.
Gear: SLE, foils and C kites, TTs, Directionals, Landboards, Buggy.
Brand Affiliation: None
Has thanked: 77 times
Been thanked: 181 times

Re: making a safety line with a bungee inside - ideas

Postby Herman » Sat Oct 17, 2020 9:39 am

I have reached the same conclusion as OzBungy, bungy insert not worth the trouble, but I have long arms and only a small percentage of my sheeting range is trim, therefore not much sag in the flag line.

knot_moving
Frequent Poster
Posts: 477
Joined: Tue Apr 07, 2009 5:13 am
Kiting since: 2009
Gear: kites: OR Flites & Cabrinha Velocity
Underground FLX 138, Slingshot foil, Mako Duke, Jimmy Lewis Flight Deck
Brand Affiliation: None
Location: NW Florida
Has thanked: 1 time
Been thanked: 12 times

Re: making a safety line with a bungee inside - ideas

Postby knot_moving » Sat Oct 17, 2020 4:11 pm

Herman wrote:
Sat Oct 17, 2020 9:39 am
I have reached the same conclusion as OzBungy, bungy insert not worth the trouble, but I have long arms and only a small percentage of my sheeting range is trim, therefore not much sag in the flag line.
+1 on ditching the bungee . I am going to try infexion’s use of a thin PU tube with a small loop at the trim cleat to manage it - this seems like a good option to keep the line out of the way.

jaros
Very Frequent Poster
Posts: 540
Joined: Sun Dec 15, 2002 1:00 am
Brand Affiliation: None
Location: Slovenia
Has thanked: 23 times
Been thanked: 15 times

Re: making a safety line with a bungee inside - ideas

Postby jaros » Sat Oct 17, 2020 5:12 pm

knot_moving wrote:
Sat Oct 17, 2020 4:11 pm
I am going to try infexion’s use of a thin PU tube with a small loop at the trim cleat to manage it - this seems like a good option to keep the line out of the way.
Can you tell me more about this, please? Any photo?
I have the Infexion quick release and I love it.

twig
Medium Poster
Posts: 68
Joined: Wed Mar 15, 2017 1:25 pm
Style: freeride/boosting/Hydrofoil/race
Gear: Flysurfer speed4 lotus 12m
Flysurfer Sonic fr 18m
Flysurfer Sonic2 15m
North Vegas 11m
Flysurfer sonic race 9m
Ozone Reov4 7m

Moses Vorace 101 2017
w558 w590

Flysurfer Flysplit m
Brand Affiliation: None
Has thanked: 7 times
Been thanked: 2 times

Re: making a safety line with a bungee inside - ideas

Postby twig » Mon Oct 19, 2020 6:42 pm

jaros wrote:
Sat Oct 17, 2020 5:12 pm
knot_moving wrote:
Sat Oct 17, 2020 4:11 pm
I am going to try infexion’s use of a thin PU tube with a small loop at the trim cleat to manage it - this seems like a good option to keep the line out of the way.
Can you tell me more about this, please? Any photo?
I have the Infexion quick release and I love it.
I belive the loop mentioned is the one seen in the picture to the left out the three images.(click the link)
Its there to hold the line in place to not get in the way of the front of the cleat. I have a homemade bar and I miss this; sometimes the bungee safety line finds its way into my cleat as fast as I try to trim with the trimline.
I will try and make something similar, I have to say the infexion version looks perfect.

https://www.infexion.eu/product-category/max_bar/

knot_moving
Frequent Poster
Posts: 477
Joined: Tue Apr 07, 2009 5:13 am
Kiting since: 2009
Gear: kites: OR Flites & Cabrinha Velocity
Underground FLX 138, Slingshot foil, Mako Duke, Jimmy Lewis Flight Deck
Brand Affiliation: None
Location: NW Florida
Has thanked: 1 time
Been thanked: 12 times

Re: making a safety line with a bungee inside - ideas

Postby knot_moving » Tue Oct 20, 2020 1:36 am

twig wrote:
Mon Oct 19, 2020 6:42 pm
jaros wrote:
Sat Oct 17, 2020 5:12 pm
knot_moving wrote:
Sat Oct 17, 2020 4:11 pm
I am going to try infexion’s use of a thin PU tube with a small loop at the trim cleat to manage it - this seems like a good option to keep the line out of the way.
Can you tell me more about this, please? Any photo?
I have the Infexion quick release and I love it.
I belive the loop mentioned is the one seen in the picture to the left out the three images.(click the link)
Its there to hold the line in place to not get in the way of the front of the cleat. I have a homemade bar and I miss this; sometimes the bungee safety line finds its way into my cleat as fast as I try to trim with the trimline.
I will try and make something similar, I have to say the infexion version looks perfect.

https://www.infexion.eu/product-category/max_bar/
Exactly

evan
Very Frequent Poster
Posts: 597
Joined: Sat Jan 31, 2004 5:48 pm
Kiting since: 2002
Local Beach: Brouwersdam
Style: Hydrofoil - Big Air
Gear: Infexion bars
Brand Affiliation: Infexion
Has thanked: 8 times
Been thanked: 88 times
Contact:

Re: making a safety line with a bungee inside - ideas

Postby evan » Tue Oct 20, 2020 8:13 am

Thanks, it's indeed to keep the flagout interfering with the trim and cleat. Interesting to hear if the flagout works without a bungee, can't imagine that it would work as nice as a tight flagout line.

You can make it without stitching if there is enough room through the chickenloop for the knot in the bungee that goes around the outside of the line with both ends spliced inside. Other solution is indeed to use a separate flagout line that is fixed around 7m up one power line and have the bungee all the way up there.

User avatar
Janus
Very Frequent Poster
Posts: 963
Joined: Fri Mar 14, 2003 9:34 am
Kiting since: 2001
Local Beach: https://goo.gl/maps/bc4TAhGN26ewTLJW9
Style: Freeride
Gear: *
Brand Affiliation: None
Location: Netherlands
Has thanked: 35 times
Been thanked: 33 times

Re: making a safety line with a bungee inside - ideas

Postby Janus » Tue Oct 20, 2020 10:12 am

evan wrote:
Tue Oct 20, 2020 8:13 am
Thanks, it's indeed to keep the flagout interfering with the trim and cleat. Interesting to hear if the flagout works without a bungee, can't imagine that it would work as nice as a tight flagout line.

You can make it without stitching if there is enough room through the chickenloop for the knot in the bungee that goes around the outside of the line with both ends spliced inside. Other solution is indeed to use a separate flagout line that is fixed around 7m up one power line and have the bungee all the way up there.
7m is an indication i assume, doesn't it depends on the span of your wing / kite to be fully functional as a good safety flagout line?
I really dislike a loose flagout / safety line so bungees are nice.

evan
Very Frequent Poster
Posts: 597
Joined: Sat Jan 31, 2004 5:48 pm
Kiting since: 2002
Local Beach: Brouwersdam
Style: Hydrofoil - Big Air
Gear: Infexion bars
Brand Affiliation: Infexion
Has thanked: 8 times
Been thanked: 88 times
Contact:

Re: making a safety line with a bungee inside - ideas

Postby evan » Tue Oct 20, 2020 10:43 am

7m is good enough for almost all modern (foil) kites as that is more than the distance between both powerline pigtails (towpoints) on even the biggest bridled kites. You can go much shorter on small kites.

Note that the towpoint separation on bridled kites is much less than the (projected) wingspan.
These users thanked the author evan for the post:
Janus (Tue Oct 20, 2020 12:11 pm)
Rating: 8.33%

User avatar
Nem0
Frequent Poster
Posts: 315
Joined: Mon Jun 13, 2016 1:51 pm
Local Beach: rectalcity
Favorite Beaches: Hörnum on the island Sylt (West- and Eastcoast)
Gear: 18-12-9-6m Flysurfer Soul + 133x42 ZERO-G + Spleene CarbonPro Monsterdoor
Brand Affiliation: None
Has thanked: 0
Been thanked: 7 times

Re: making a safety line with a bungee inside - ideas

Postby Nem0 » Tue Oct 20, 2020 7:21 pm

This method looks interesting!


Return to “Gear Builders”

Who is online

Users browsing this forum: No registered users and 2 guests