Date: Thu, 10 Nov 1994 03:26:54 -1000 From: wky1@ic.ac.uk (Mr W.K. Yoon) Message-Id: <1994Nov10.132654.22448@cc.ic.ac.uk> Organization: Imperial College Subject: stand-offs Having built my Standard 200, I am thinking of adding stand-offs to it I would like to know which method is the best. I notice that some are made of straight carbon fibre while others are made of bent GRP. Is there any difference and if so, which method should I use. Some of the bent GRP stand-offs are not attached directly to the sail but to a loop of cord attached to the sail. Please explain. Thank You waikee Imperial College Elect Eng Dept. London = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = Date: Mon, 14 Nov 1994 11:30:47 -1000 From: sasaki@netopd.harvard.edu (Marty Sasaki) Message-Id: <3a8ku7$923@necco.harvard.edu> Organization: Harvard OIT Network Services Subject: Re: stand-offs In article <1994Nov10.132654.22448@cc.ic.ac.uk>, wky1@ic.ac.uk (Mr W.K. Yoon) writes: |>Having built my Standard 200, I am thinking of adding stand-offs to it |>I |>would like to know which method is the best. I notice that some are |>made |>of straight carbon fibre while others are made of bent GRP. Is there |>any |>difference and if so, which method should I use. Some of the bent GRP |>stand-offs are not attached directly to the sail but to a loop of |>cord |>attached to the sail. Please explain. It really depends on what you are trying to do. A straight stiff standoff doesn't bend so as the kite bends more stress is put on the sail. This pulls the trailing edge tight. For some kites this is a good idea. A bent standoff will bend when the kite bends which won't strain the trailing edge so much. I used to bend the standoffs quite a bit, so they acted like springs. It worked very well. There are lots of ways to attach standoffs to the sail. Some folks reinforce the sail, hot melt a hole in the reinforcement, and use stoppers on the standoff. Dean Jordan uses an clothing snap to hold the standoff in place. Many folks use molded plastic fittings to attach the standoff to the sail. I use the Beman molded "paddle" to attach the standoff to the kite. The best source for this fitting is Hang-em High Fabrics. Tom Marvin has thousands of these things and Beman won't have any until the beginning of the year. -- Marty Sasaki Harvard University Sasaki Kite Fabrications sasaki@noc.harvard.edu Network Services Division 26 Green Street 617-496-4320 10 Ware Street Jamaica Plain, MA 02130 Cambridge, MA 02138-4002 phone/fax: 617-522-8546 = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = Date: Tue, 15 Nov 1994 06:15:18 -1000 From: yagdp@ntx.city.unisa.edu.au (Graeme Poole) Message-Id: Organization: University of South Australia Subject: Re: stand-offs In article <1994Nov10.132654.22448@cc.ic.ac.uk> wky1@ic.ac.uk (Mr W.K. Yoon) writes: >Having built my Standard 200, I am thinking of adding stand-offs to it I >would like to know which method is the best. I notice that some are made >of straight carbon fibre while others are made of bent GRP. Is there any >difference and if so, which method should I use. Some of the bent GRP >stand-offs are not attached directly to the sail but to a loop of cord >attached to the sail. Please explain. >Thank You I also made a Standard 200, used 2mm straight CF for standoffs and a clear PVC tube (small diameter) attachment at the sail to 'permanently' (not glued) attach them.... something like this :- ________ / _ \ | x | \ \ | x | \ \ | x | | | sail x | | ------------------------------x-== / | <- PVC tube x / / x / / x / / x/ / /x / / x / / x / \ x/ \/x x x x <- standoff But I have been meaning to post the question to rec.kites for some time now .. What is the best method for permanent attachment of standoffs ? 'Best' - as in cheap and easy for the home kite builder ... What do you use ?? Many thanks Graeme -- Graeme Poole Information Services Officer also Treasurer/Editor University of South Australia Adelaide Kite Flyers' Assoc. AUSTRALIA Email : Graeme.Poole@unisa.edu.au or yagdp@ntx.city.unisa.edu.au ----------------------------------------------------------------------------- = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = Date: Tue, 15 Nov 1994 10:02:48 -1000 From: sasaki@netopd.harvard.edu (Marty Sasaki) Message-Id: <3ab458$fa8@necco.harvard.edu> Organization: Harvard OIT Network Services Subject: Re: stand-offs As I mentioned earlier in this thread, I use the Beman paddle connectors. These are made of plastic and can take a 2 to 3mm rod. You can sew them to the sail, or you can use a rivet or an eyelet to attach the fitting. For a while, there was a world-wide shortage of the connectors, Beman wasn't producing them. Tom Marvin at Hang-em High has thousands of them now. -- Marty Sasaki Harvard University Sasaki Kite Fabrications sasaki@noc.harvard.edu Network Services Division 26 Green Street 617-496-4320 10 Ware Street Jamaica Plain, MA 02130 Cambridge, MA 02138-4002 phone/fax: 617-522-8546 = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = Date: Wed, 16 Nov 1994 02:10:21 -1000 From: RODGER@ray.uct.ac.za (Rodger Duffett) Message-Id: Organization: Division of Applied Sciences, Harvard University Subject: Re: stand-offs Hi all, Greetings from Cape Town Up here we often attach standoffs by putting a small reinforcement of dacron at the point on the sail where the standoff will go and punching a hole for an eyelet slightly larger in diameter than the standoff. The standoff is then kept in place by super-glueing a small piece of vinyl tubing above and below the sail. The lower piece must be at the position required to put the desired tension on the sail. Something like: |sail = | = -----------------------------------standoff = | =vinyl tube in section | | | 'bout as clear as mud! Have fun PS News about the Stranger coming up as soon as the wind drops around here! = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = Date: Mon, 21 Nov 1994 07:15:03 -1000 From: rolf@login.dknet.dk (Rolf V. Oestergaard) Message-Id: Organization: DKnet / EUnet Denmark - Login Tjenesten Subject: Re: stand-offs One of the best ways I have seen is this: sail sail <---------------+ +-------------------------> | | | O | +-----+ And the stand-off: | =======================================| | An extra "flap" sewn on the trailing edge, with a melted hole in. The stand-off glued to a small piece of spar (6mm, 15mm long). "Plop" the stand-off through the hole, so it points the wrong direction, and turn it round. This rolls up the "flap" on the sail around the end-piece, so the standoff works excatly at the edge of the sail. Right where you want it! Regards, Rolf V. Oestergaard, Copenhagen, Denmark -------------- tel: +45 3156 4111, fax: +453156 2140 \ /\ / e-mail: rolf@login.dknet.dk \/ \/ = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = Date: Mon, 21 Nov 1994 22:11:54 -1000 From: era_pul@ki.ericsson.se (Peter Ulfheden ) Message-Id: <1994Nov22.081154.18321@ericsson.se> Organization: Ericsson Radio Systems AB, Sweden Subject: Re: stand-offs Rolf V. Oestergaard (rolf@login.dknet.dk) wrote: : One of the best ways I have seen is this: [snip... beautiful stand-off fitting deescription deleted] A really great way to do it. Nice to see some practical tips here on rec.kites. In addition, you could also shove a piece of thin vinyl tubing over the stand-off after you have plopped it through the hole in the flap. This would prevent it from getting lost. Tight Line(s) Peter -- []-------------------------------------------------[] | Peter Ulfheden | era_pul@ki.ericsson.se | | Amorinav. 3 | or petulf@saaf.se | | S-191 44 Sollentuna | Phone: +46 8 751 02 15 | | SWEDEN | Fax: +46 8 35 04 29 | []-------------------------------------------------[] = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = =