Contact   Imprint   Advertising   Guidelines

Cabrinha crossbow powerloss

forum for kitesurfers


User avatar
shawn13
Very Frequent Poster
Posts: 731
Joined: Tue Sep 04, 2012 3:21 pm
Kiting since: 2011
Local Beach: Cherry Beach, Toronto
Sherkston, Lake Erie
Wasaga, Lake Huron
Favorite Beaches: In Order:
Mauritius, Boracay, Philippines/ Soma Bay, Egypt/ Cape Town, SA/ Cayo Guillermo, Cuba/ Sherkston, Canada/ El Gouna, Egypt/ Oliphant, Canada/ Kalpitya, Sri Lanka/ Wasaga Beach, Canada
Style: Freeride/Race
Gear: Cabrinha
Location: GLOBAL
Contact:

Cabrinha crossbow powerloss

Postby shawn13 » Sun Mar 10, 2013 2:53 pm

I have a 2011 cabrinha crossbow 13m. I've noticed that after my last few kite trips it's had less power. I did the cabrinha bar tuning. When the center lines reached 6inch stretch I recently replaced them with 2013 lines and retuned. I still have no power. I know this because I can ride a 12 Switchblade fine and when I switch back to the 13 it feels like a 9 or 10. Can a bridle stretch? Anyone experience this before? Thanks.

User avatar
Hawaiis
Very Frequent Poster
Posts: 1370
Joined: Wed Aug 24, 2011 11:39 am
Kiting since: 9
Local Beach: Kailua
Brand Affiliation: None

Re: Cabrinha crossbow powerloss

Postby Hawaiis » Sun Mar 10, 2013 8:17 pm

I have noticed when the kite is new, they tend to have more power. After a while, they will not be as efficient. My reasoning is that they will stretch and loss their optimum shape, also they will pick up sand and dirt and become heavier. Maybe there are other factors too.

experienced1
Very Frequent Poster
Posts: 923
Joined: Fri Jun 06, 2003 5:32 pm
Kiting since: 0
Gear: Cabrinha
Brand Affiliation: Cabrinha
Location: Cabrinha Old Guy

Re: Cabrinha crossbow powerloss

Postby experienced1 » Sun Mar 10, 2013 9:18 pm

some thing is wrong...can't tell you what from here, but the 13m XB powerwise should be similar to the 14SB. When you installed the new center lines, did you retune the bar with all lines having equal tension with no depower strap pulled and the bar sheeted all the way in? Sound like your back/outside lines might be a bit long.
steve

User avatar
shawn13
Very Frequent Poster
Posts: 731
Joined: Tue Sep 04, 2012 3:21 pm
Kiting since: 2011
Local Beach: Cherry Beach, Toronto
Sherkston, Lake Erie
Wasaga, Lake Huron
Favorite Beaches: In Order:
Mauritius, Boracay, Philippines/ Soma Bay, Egypt/ Cape Town, SA/ Cayo Guillermo, Cuba/ Sherkston, Canada/ El Gouna, Egypt/ Oliphant, Canada/ Kalpitya, Sri Lanka/ Wasaga Beach, Canada
Style: Freeride/Race
Gear: Cabrinha
Location: GLOBAL
Contact:

Re: Cabrinha crossbow powerloss

Postby shawn13 » Sun Mar 10, 2013 10:38 pm

experienced1 wrote:some thing is wrong...can't tell you what from here, but the 13m XB powerwise should be similar to the 14SB. When you installed the new center lines, did you retune the bar with all lines having equal tension with no depower strap pulled and the bar sheeted all the way in? Sound like your back/outside lines might be a bit long.
steve

Yes I tuned the bar. All the way in and the lines are even. I tried putting the lines closer to the kite but it only helped slightly. I can't figure it out. Can a bridle stretch? I'd hate to replace that if the kite has lost shape or something...

User avatar
Caesar
Very Frequent Poster
Posts: 1132
Joined: Sat May 17, 2008 3:44 pm
Local Beach: Cumbuco, Palm Cove, Port Douglas, Yorkeys Knob
Gear: Not telling unless I'm getting paid.
Brand Affiliation: Nothing...
Location: DownUnder/Brazil cumbuco-oceanview.com
Contact:

Re: Cabrinha crossbow powerloss

Postby Caesar » Mon Mar 11, 2013 12:31 am

shawn13 wrote:I have a 2011 cabrinha crossbow 13m. I've noticed that after my last few kite trips it's had less power. I did the cabrinha bar tuning. When the center lines reached 6inch stretch I recently replaced them with 2013 lines and retuned. I still have no power. I know this because I can ride a 12 Switchblade fine and when I switch back to the 13 it feels like a 9 or 10. Can a bridle stretch? Anyone experience this before? Thanks.


Hi Shawn,

I can't give you a fix for that either, but I can tell you that I noticed the same with Switchblades. After about 5 months the performance/power dropped. Not to 50% but noticeable.

Cheers
Caesar 8)

knotwindy
Very Frequent Poster
Posts: 608
Joined: Mon Sep 26, 2011 4:49 am
Kiting since: 2007
Local Beach: baja, gorge
Brand Affiliation: None

Re: Cabrinha crossbow powerloss

Postby knotwindy » Mon Mar 11, 2013 12:58 am

yes, bridles stretch, sometimes a lot
seems to me part of why a new kite flies "better" is the bridles are correct

AlexandreBorges
Frequent Poster
Posts: 286
Joined: Tue Feb 02, 2010 1:44 am
Kiting since: 2009
Local Beach: Jericoacoara (CE) and São Luís (MA)
Favorite Beaches: Jericoacoara (CE) and São Luís (MA)
Style: Freestyle
Gear: Cabrinha Crossbow 2010
Brand Affiliation: None

Re: Cabrinha crossbow powerloss

Postby AlexandreBorges » Mon Mar 11, 2013 2:45 pm

Hmm...

If lines are tuned then I could give a shot! Maybe the line inside the black tube that slides through bar is broken and all that is holding your kite is the black tube itself. Also perceived by eject line tension.

It happened to me while in the middle of a long downwind. By half of it I heard something odd but could not see anything broken but I felt power difference and low power on jumps, than when I finished that day session I could see the main line broken. I had a long DW only with that black tube saving the day.

:wink:
Tell me later if that is the case.
Last edited by AlexandreBorges on Mon Mar 11, 2013 5:38 pm, edited 1 time in total.

User avatar
bigwave
Frequent Poster
Posts: 444
Joined: Tue May 28, 2002 1:00 am
Kiting since: 2000
Style: Free ride,Freestyle, Foil and Surf.
Gear: Kites: Cabrinha
Boards: Nobile, Aguera, Cabrinha ,Shinn
Harnesses: Dakine Ride Engine
Brand Affiliation: www.silentsports.com
Location: www.silentsports.com

Re: Cabrinha crossbow powerloss

Postby bigwave » Mon Mar 11, 2013 5:10 pm

shawn13 wrote:
experienced1 wrote:some thing is wrong...can't tell you what from here, but the 13m XB powerwise should be similar to the 14SB. When you installed the new center lines, did you retune the bar with all lines having equal tension with no depower strap pulled and the bar sheeted all the way in? Sound like your back/outside lines might be a bit long.
steve

Yes I tuned the bar. All the way in and the lines are even. I tried putting the lines closer to the kite but it only helped slightly. I can't figure it out. Can a bridle stretch? I'd hate to replace that if the kite has lost shape or something...


Hi, can you bring the kite in to Silent Sports? We can have a look at it with you. 1-800-661-7873

Thanks

Dave

User avatar
JS
Very Frequent Poster
Posts: 918
Joined: Wed Aug 03, 2005 6:25 pm
Kiting since: 0
Brand Affiliation: None
Location: Vancouver

Re: Cabrinha crossbow powerloss

Postby JS » Mon Mar 11, 2013 5:43 pm

Oversheeting is the most likely cause for loss of power (lift). Oversheeting is regularly caused or exacerbated by stretched or stretching (present only under load) lines, which normally affect the front more than rear lines. It's very difficult to detect oversheeting unless it's so severe the kite suffers total aerodynamic stall.

The only practical way to know a kite is trimmed optimally, without oversheeting, is with telltales. Ironically, competitive sailors know they don't have a chance at being competitive without telltales, and yet very few kiteboarders use them. (Interesting indication that kiteboarding - not least racing - is in its relative infancy :D )

Here's something I wrote about half a dozen years ago on the topic: http://www.kiteboardbc.com/index.php?pr=Telltales

Cheers,
James

User avatar
southflorida
Medium Poster
Posts: 167
Joined: Sat Apr 09, 2011 1:15 pm
Kiting since: 2007
Style: flat water, go fast, practice tricks
Brand Affiliation: None

Re: Cabrinha crossbow powerloss

Postby southflorida » Mon Mar 11, 2013 5:59 pm

What would be useful to understand if bridle lines are stretching is to have a factory published length for each bridle line for each model, year and size of kite. I didn't measure my Switchblade 2011 bridles when new...so maybe they have stretched a little?

Problem is, I have no reference to measure against.

(note to self - measure all bridle lines to the mm next time I buy new kite)


Return to “Kitesurfing”

Who is online

Users browsing this forum: cglazier, heemskn, iblocalsurfer, LiquidXtasy, sedluk and 22 guests