Date: Wed, 24 Feb 1993 20:52:59 GMT From: sasaki@netop3 (Marty Sasaki) Message-ID: <1993Feb24.205352.23343@das.harvard.edu> Organization: Division of Applied Sciences, Harvard University Subject: Bridling a Small 2 Line Delta Please note: This message is being forwarded by hand. The message was received before the auto-magic forwarding software was in place. - Marty Sasaki From: "M.N.Oakden" Subject: Bridling a Small 2 Line Delta Date: Thu, 18 Feb 93 18:21:07 GMT Mailer: Elm [revision: 70.30] Hi there, I recently built myself a smallish (span 85cm) delta, as an experimental first venture into the world of two line kites. It is made of Mylar film and split bamboo, in the style of the single line fighter kites which I am more used to - reasonably stiff spine with a flexible cross spar bowed to match the leading edge angle near the wing tips. (the kite is planar when not in the wind but assumes a double conical wing shape in wind). The bridle system consists of two 2-leg bridles. One end of each is attached to the leading edge of the wing and the other ends are both attached to the spine near to the trailing edge. While trying to fly this kite in light winds yesterday, I found that I had a lot less control than I had anticipated. What I was wondering is if this is likely to be due to the 2-leg bridles. I notice that most stunt kites have two 3-leg bridles, with attachment at points similar to those that I have used as well as a point along the leading edge near to the wingtip. The reason I left these off initially was to allow the wings to flex in response to increased pull on the lines (as is the case with a single line fighter) but I now wonder if this is adversely affecting the handling. Or is it more likely to be my inexperience with two line kites or the lightness of the wind. I was flying with a tail, having found it too skittish without. Cheers, Mark Oakden. -- Internet: M.N.Oakden@durham.ac.uk Centre for Particle Theory, DECNET : 19681::MNO University of Durham, Durham, DH1 3LH, UK. = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = Date: Wed, 24 Feb 1993 20:53:27 GMT From: sasaki@netop3 (Marty Sasaki) Message-ID: <1993Feb24.205421.23411@das.harvard.edu> Organization: Division of Applied Sciences, Harvard University Subject: Re: Bridling a Small 2 Line Delta Please note: This message is being forwarded by hand. The message was received before the auto-magic forwarding software was in place. - Marty Sasaki From: grantm@syacus.acus.oz.au Subject: Re: Bridling a Small 2 Line Delta Date: Fri, 19 Feb 93 14:10:47 EST Cc: kites0as.harvard.edu@munnari.oz.au Hi Mark, By adding a third leg to the bridles will give more variation to where the clip is in relation to the kite. Two legged bridles are alot more sensitive to where you attach them onto the kite. If you attach the third bridle line to the spine, one third (1/3) the way down from the nose and then to the clip (do same to other clip) then you should hopefully be able to make the necessary adjustment to make the kite fly as you like. With only one of the three bridle lines attached to the leading edge, the wings will still flex in respone to increased pull. If you find that you have to lengthen the third bridle to such an extent that the third bridle lines tend to go slack when in flight, then it's time to move the bridle lines attached to the leading edge a bit further down towards the wing tips. There are many other aspects to bridle positions and attachment points. Just experiment and don't give up!! Cheers, Grant... -- Grant McCauley Australian Centre for Unisys Software (ACUS) 115 Wicks Rd, Internet: grantm@syacus.acus.oz.au North Ryde 2113 UUCP: uunet!munnari!syacus.acus.oz.au!grantm N.S.W AUSTRALIA Ph: +61 2 3901333 Fax: +61 2 3901391 = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = =