North Rebel Luffing

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Beanz
Beanz
WA
75 posts
WA, 75 posts
15 Mar 2012 1:41am
Hi, first season noob on a 9m 2012 rebel and have had two sessions experiencing bad luffing with the kite falling completely backwards out of the sky (ielanding leading edge up). The second time was today with the result being my kite falling backwards into someone's back yard - embarrassing!!!

Following the first time a month or so ago, got advice to lengthen the rear lines which I have done ensuring they were all the same length. Since then, apart from today, I hadn't experienced the Kite falling completely backwards howver I have felt it lose all power even when sheeted in before catching the wind again.

This is unnerving me a bit - is the Rebel compared to other brands prone to luffing or shall I get my kite properly trimmed by the retailer?.

Btw was at Melville beach this arvo - whilst winds did die away towards the end of my session before my kite luffed out winds were still around 15 knots.

Cheers

NaturalHigh
NaturalHigh
VIC
5 posts
VIC, 5 posts
15 Mar 2012 10:47am
Hey, I believe what you are talking about is your kite back stalling. If you sheet in too much when there isn't enough wind flowing over the kite, this will cause it to back stall. This is particularly prone to happening when the wind is very light.
The best thing to do when the wind is light is to pull on a little depower on the trim strap, this will help to prevent back stalling. If your kite is falling backwards, push the bar all the way out and wait for it the kite to recover and fly forwards again. If the kite doesn't fly forwards with the bar pushed out, the wind is just too light.

Hope this helps.
KIT33R
KIT33R
NSW
1716 posts
NSW, 1716 posts
15 Mar 2012 1:14pm
A common mistake for noods is to pull the bar in when they see the kite falling backwards. Solution is to push the bar OUT as NaturalHigh says. The kite will fly up again as you've reestablished an efficient air flow over the kite.

If this does not help then your back lines (stearing lines) are too short. You may only need 2cm extensions to solve the problem or simply pull in a little trim strap to shorted the front lines. Give the kite to an experienced kiter to play around with if you can't solve the problem yourself.
Beanz
Beanz
WA
75 posts
WA, 75 posts
15 Mar 2012 2:09pm
Thanks guys for the tips - didn't know about trimming it as a solution - my thinking would have been this would have made it worse, so learnt something there.

I thought luffing is when it falls backwards rather than stalling??? Anyone know the difference in terminology?
GJOchoa
GJOchoa
SA
108 posts
SA, 108 posts
15 Mar 2012 5:02pm
according to wikipedia luffing is when the kite stalls and the front (or leading) edge falls downwards.
I understand backstall is when the kite falls on its trailing edge
KIT33R
KIT33R
NSW
1716 posts
NSW, 1716 posts
15 Mar 2012 10:28pm
GJOchoa said...

according to wikipedia luffing is when the kite stalls and the front (or leading) edge falls downwards.
I understand backstall is when the kite falls on its trailing edge


Correct
Livit
Livit
WA
542 posts
WA, 542 posts
16 Mar 2012 9:27am
NaturalHigh said...

If your kite is falling backwards, push the bar all the way out and wait for it the kite to recover and fly forwards again. If the kite doesn't fly forwards with the bar pushed out, the wind is just too light.

Hope this helps.


Yes but......maybe the trailing edge has just sunken too deep in the water.... In that case you're right saying to push the bar all the way out (as always when the kite is down) but also you can help by pulling both center lines or just by swimming backward until the trailing edge gets out of the water...
Beanz
Beanz
WA
75 posts
WA, 75 posts
16 Mar 2012 1:11pm
Livit said...

NaturalHigh said...

If your kite is falling backwards, push the bar all the way out and wait for it the kite to recover and fly forwards again. If the kite doesn't fly forwards with the bar pushed out, the wind is just too light.

Hope this helps.


Thanks - no worries with the relaunch just trying to manage the thing falling in the first place. Was out this morning in light winds and when it thought about falling back I pushed the bar away as recommended and it recovered fine. Also had it trimmed a little which also helped. So learnt some new management skills - now onto getting better at edging upwind as sick of f&^%ing walking back up the beach telling people on the way who are looking at me like I'm a dick "riding upwind is overrated".
GJOchoa
GJOchoa
SA
108 posts
SA, 108 posts
16 Mar 2012 3:53pm
As a newbie I must say I enjoy my walks back I'll miss them after I learn how to ride upwind, or properly ride for that matter
mywisdom
mywisdom
WA
258 posts
WA, 258 posts
16 Mar 2012 2:12pm
if you where on or near the beach that day with the changing winds your kite would never have flown properly, it was swinging sse - se and if you happened to be near the beach while it hit to much south you would have experience 7-20 knot variance in blow and a horrible wind shadow near the launching area! :)
need more east!
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