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Good morning everyone. I am a kitesurfer who for 10 years I live 600km from the nearest beach and can only practice 1 to 2 times a year, when there are wind conditions on the beach that flew. I am wanting to start the practice of kiteskating and decided to build a NASA kite and I am using the first version of the construction program (see the attached image), building a 3.9m² NASA. The first wing flew but I am experiencing instability problems in the nose, although it has a lot of traction, in the dives it closes the nose inwards, creating breath, loss of pressure and speed. I would like to know if someone can help me with this construction or if they can indicate a specific location for it. I would like to build one like NASA Star because I see how stable it is. Thank you very much.

 

 

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foto programa.jpg

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On 9/7/2020 at 11:14 AM, .Joel said:

Welcome Renato, @SoutherlyBusterbuilt a large orange Nasa. He may be able to help 🙂

Hi Renato, Southerly Buster here. Joel is right I have built nasa kites from 0.75m^2 up to 9 m^2. Must say they are one of the most challenging kites to fly. It is usually the trailing edge that begins to flutter if nit enough backline tension applied, too much and she flies backwards. They are just for giggles kite or for pure down winders. They have very poor upwind er um no up wind performance. If the nose is collapsing I would say too much tension on the bridle, not the front lines but the bridle. Did you sew in those little straps on the nose underside to the top of the nose? That plan you show looks like the one I started from.

Ok some more thoughts, from your pics looks like you only have front lines? I use 4 for best control.  You need a very fine control with you hands, especially the balance between front and rear tension.

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On 9/10/2020 at 4:50 AM, SoutherlyBuster said:

Hi Renato, Southerly Buster here. Joel is right I have built nasa kites from 0.75m^2 up to 9 m^2. Must say they are one of the most challenging kites to fly. It is usually the trailing edge that begins to flutter if nit enough backline tension applied, too much and she flies backwards. They are just for giggles kite or for pure down winders. They have very poor upwind er um no up wind performance. If the nose is collapsing I would say too much tension on the bridle, not the front lines but the bridle. Did you sew in those little straps on the nose underside to the top of the nose? That plan you show looks like the one I started from.

Ok some more thoughts, from your pics looks like you only have front lines? I use 4 for best control.  You need a very fine control with you hands, especially the balance between front and rear tension.

 

My idea is to have a kite so I can take my first steps in kiteskating, so I decided to do this nasa and I would like to use it with a kitesurf bar, so I am using the front lines and the brake together, I saw a video of a depower for NASA and I was dreaming of being able to use it like this (https://www.youtube.com/watch?v=uYAGJkNdUak&ab_channel=quedecree). I'm getting beaten a lot with the adjustments of the lines, this week I changed the measurements for the second version of the npw5, but as I had changed the distances of the T measurement it ended up going wrong and it made the collapse in the nose even worse. Here in my country I do not find material suitable for construction, in this case, I am using a thicker resin nylon of 75g and the lines I am finding thick, I am using 1.5mm rope which is making it heavy, besides they have a little stretch . I'm thinking of replacing it with a 50lb spectra line, but it's a cost that I don't know if it will give me a result for this kite. I'm about to give up, but I'm still going to do some tests. I really appreciate the comments, this is a way for me to get excited and try a little bit to get a good result.

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  • 2 weeks later...

Good morning everyone. This week end I did some more tests and came to good conclusions about my nasa. Referring to the large closing in the nose, it was due to the brake lines being too loose, small adjustments in the brake lines already result in great results in the kite's nose. But the fact is that NASA cannot stay very still, because if you leave the brake line almost at the same distance from the attack lines, it can fly backwards, but the result was already much better, I got to be in pain arms because I'm not using a trapezoid to fix the bar around my waist. Another detail is that I am using a conventional kitesurf bar and the excess of command also creates collapses in the nose, so I am thinking of making a command bar with approximately 35cm that will maintain a good command and reduce the excess of command. My next step is to test the correction I saw on this link https://www.kiteplans.org/planos/teega/teega.html regarding the adjustment of line A1. What do you think of my observations?

NPW_Teega_13.jpg

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I have a bunch of Steffen's Nasa Star's - and yes, you do have to keep them moving.  If they sit still and there is a slight lull in the wind, they will fly backwards.  They do technically have 'depower' but it is not very satisfactory to fly when slightly depowered.  I only use the depower in an emergency to dump the kite otherwise I fly them fully powered at all times.  They do have an interesting landing procedure though which you can see at 2:17 in the video...

 

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