Date: Tue, 5 Mar 1996 09:58:55 -1000 From: Matthew@hurrell.u-net.com (Matthew Hurrell) Message-Id: <4hi6gk$mg3@nuntius.u-net.net> Organization: U-NET limited Subject: Icarex Sputniks Is it OK to poke holes in icarex Sputnik ribs without reinforcement for cross venting? I don't use reinforcement for the holes in the nylon ribs, but icarex looks more fragile and less rip resistant. Matt _______________________________________________ Web Page = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = Date: Tue, 5 Mar 1996 12:37:53 -1000 From: ahclem0013@aol.com (AhClem0013) Message-Id: <4hifo1$jk0@newsbf02.news.aol.com> Organization: America Online, Inc. (1-800-827-6364) Subject: Re: Icarex Sputniks In article <4hi6gk$mg3@nuntius.u-net.net>, Matthew@hurrell.u-net.com (Matthew Hurrell) writes: >Is it OK to poke holes in icarex Sputnik ribs without >reinforcement for cross venting? > >I don't use reinforcement for the holes in the nylon ribs, but >icarex looks more fragile and less rip resistant. > > Matt, what do you mean, poke holes? icarex has equevelant tear strength as any high grade ripstop, but all kite fabrics tear easily along the grain once a tear has developed. So easily, that some company's don't use scissors to cut big pieces, they just rip the fabric. No kidding. So if your talking about cutting a hole, it should be fine. But if the hole is to big, your bag will bulge at every hole. There are more than a few ways to vent ribs. aoxodeano = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = Date: Wed, 6 Mar 1996 05:37:14 -1000 From: dquad@aol.com (DQuad) Message-Id: <4hkbfa$94s@newsbf02.news.aol.com> Organization: America Online, Inc. (1-800-827-6364) Subject: Re: Icarex Sputniks In article <4hi6gk$mg3@nuntius.u-net.net>, Matthew@hurrell.u-net.com (Matthew Hurrell) writes: >s it OK to poke holes in icarex Sputnik ribs without >reinforcement for cross venting? Don't know about the term "poke", but venting in Icarex profiles works, but you may not need it. > >I don't use reinforcement for the holes in the nylon ribs, but >icarex looks more fragile and less rip resistant. Can use reinforcement - screen, more icarex, ripstop tape, or nothing at all... Icarex "may" look more fragile, but it is not. 1/2 oz is as strong a kite material that I have ever used. Using it in the application of foils is a great idea. Your foil will fly better, longer, faster, in lighter winds, and have better color fastness. Do not worry about crinkling or the icarex "noise" problem. It is not even on the scale. Just worry about becoming a better flier/buggier. Let us know your decision, and results. Lots of sput builders here, and always looking for the next variation on the theme. Still juddering for the desert.............dave arnold(3 days more) = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = Date: Wed, 6 Mar 1996 11:50:54 -1000 From: andrew@tug.com (Andrew Beattie) Message-Id: Organization: /usr/lib/news/organisation Subject: Re: Icarex Sputniks Matthew@hurrell.u-net.com (Matthew Hurrell) writes: >I don't use reinforcement for the holes in the nylon ribs, but >icarex looks more fragile and less rip resistant. >From the Icarex brochure that TomMarvin@aol.com sent me: Weight Elongation Breaking Point Icarex: 31g/m 8 kg/5cm Nylon: 31g/m 22 kg/5cm These ficures are from the Icarex manufacturer and they don't say *which* Nylon, so add salt to taste... The gap at the end of the cell gives me all the cross-venting I want, but this may not be appropriate to your design. Andrew -- If you buy rare and expensive kites and hang them on the wall, you won't understand, but if risk hand-painted washi-paper kites in the elements, you might find AoxomoxoA = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = Date: Thu, 7 Mar 1996 10:13:48 -1000 From: Matthew@hurrell.u-net.com (Matthew Hurrell) Message-Id: <4hng54$29f@nuntius.u-net.net> Organization: U-NET limited Subject: Re: Icarex Sputniks dquad@aol.com (DQuad) wrote: >In article <4hi6gk$mg3@nuntius.u-net.net>, Matthew@hurrell.u-net.com >(Matthew Hurrell) writes: >>s it OK to poke holes in icarex Sputnik ribs without >>reinforcement for cross venting? >Don't know about the term "poke", but venting in Icarex profiles works, >but you may not need it. Oops, I meant cut, I was just being careless with my description. >Icarex "may" look more fragile, but it is not. 1/2 oz is as strong a kite >material that I have ever used. Using it in the application of foils is a >great idea. Your foil will fly better, longer, faster, in lighter winds, >and have better color fastness. I know its properties are superior to nylon. However I can't rip nylon very easily with my bare hands, where as it is quite easy to rip the icarex. >Let us know your decision, and results. Lots of sput builders here, and >always looking for the next variation on the theme. I've decided not to bother this time. I understand the reason for cross venting but I'm not postive if it makes any difference. As for making Sputniks this is my third one. I just can't make enough of the things. Area 3.48m^2 Wing Span 3.96m Aspect Ratio 4.5 24 cells Standard profile thickness. Should be ready in a couple of weeks. I'll let you know how it turns out. Matt _______________________________________________ Web Page = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = =