Date: Sat, 8 Oct 1994 12:36:28 -1000 From: barry.klein@solar.org (Barry Klein) Message-Id: <941008160532702@solar.org> Organization: The Solar System BBS 714-837-9677 Subject: Delta Conyne Design A friend bought one of these and I was amazed how well mannered it was and how it flew in low winds. I want to make one but don't have plans in any of my books. On his kite, the leading edge spars went from the wingtips to just past the spreader. From there the sail formed the leading edge up to the nose. I thought this kinda weird. Why is it done this way rather than a full spar nose to wingtip like on regular deltas? Are there any other tips I should know in design? = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = Date: Sun, 9 Oct 1994 03:41:56 -1000 From: jburka@Glue.umd.edu (Jeffrey C. Burka) Message-Id: <378rv4$2g8@geog40.umd.edu> Organization: Project Glue, University of Maryland, College Park Subject: Re: Delta Conyne Design In article <941008160532702@solar.org>, Barry Klein wrote: >in any of my books. On his kite, the leading edge spars went from the >wingtips to just past the spreader. From there the sail formed the >leading edge up to the nose. I thought this kinda weird. Why is it >done this way rather than a full spar nose to wingtip like on regular >deltas? I don't know which delta's you've been looking at, but it's *customary* for a delta's leading edge spars to stop short of the nose. They've been built like that for decades (sez he, thinking of his Nantucket Kiteman's Valkyrie, one of the original modern delta kite designs, dating back to the early 60's). Building the kite this way, I believe, gives the frame a lot less stability and more adaptability to changing winds. I would further say that this lack of rigidity (which I have heard referred to as a "floating frame") is a cry back to one of the parents of the delta, Rogallo's flexikite. >Are there any other tips I should know in design? I've seen all sorts of different DC's, from high to low aspect ratio. Another change that's often made is to the shape of the triangular keel...when the outside edges (the top and bottom of the kite) are angled down, the kite is a Marshall (so far as I know, that's the only difference between a DC and a Marshall...anyone want to add?). Unfortunately, I'm nowhere near my stash o' kite books, so I can't check to see if any have DC plans (and no, my memory isn't good enough to recall, Anne... ;-) Jeff -- |Jeffrey C. Burka | Pithy, insightful quote to be inserted | | | when one occurs to me. *If* one occurs | |jeffy@glue.umd.edu | to me. | = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = Date: Sun, 9 Oct 1994 07:12:42 -1000 From: harris@bhc.com (Bob Harris) Message-Id: Organization: North Bay Network's news posting service - not responsible for content Subject: Re: Delta Conyne Design In article <941008160532702@solar.org> barry.klein@solar.org (Barry Klein) writes: > A friend bought one of these and I was amazed how well mannered it was > and how it flew in low winds. I want to make one but don't have plans > in any of my books. On his kite, the leading edge spars went from the > wingtips to just past the spreader. From there the sail formed the > leading edge up to the nose. I thought this kinda weird. Why is it > done this way rather than a full spar nose to wingtip like on regular > deltas? Are there any other tips I should know in design? Try Hangem High for a great kit for a conyne delta. I built it and it flew great the first time Email Tom Marvin at Hangem High at: tommarvin@genie.geis.com He's at the AKA convention this week so give him some time to reply. Kit was reasonably priced especially for the quality of materials. Directions were fairly good for a novice sewer like me. Bob Harris harris@bhc.com /|\ / | \ / | \ \ / \ / \ / + + + + + +++ = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = Date: Mon, 10 Oct 1994 13:18:16 -1000 From: rock@netcom.com (Anne Rock) Message-Id: Organization: NETCOM On-line Communication Services Subject: Re: Delta Conyne Design Jeffrey C. Burka (jburka@Glue.umd.edu) wrote: : In article <941008160532702@solar.org>, : Barry Klein wrote: : >in any of my books. On his kite, the leading edge spars went from the : >wingtips to just past the spreader. From there the sail formed the : >leading edge up to the nose. I thought this kinda weird. Why is it : >done this way rather than a full spar nose to wingtip like on regular : >deltas? : [Jeff's good stuff deleted] : Unfortunately, I'm nowhere near my stash o' kite books, so I can't check to : see if any have DC plans Margaret Greger's _More Kites For Everyone_ has a DC plan. : (and no, my memory isn't good enough to recall, : Anne... ;-) So sad, in one so young ;-) Anne -- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - * Anne Rock | * * rock@netcom.com | * * Berkeley, CA | * - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = Date: Thu, 13 Oct 1994 21:26:42 -1000 From: salanne@convex.csc.FI (Simo Salanne) Message-Id: <37lbri$iuc@pobox.csc.fi> Organization: STACK Finland Subject: Re: Delta Conyne Design In rock@netcom.com (Anne Rock) writes: >Jeffrey C. Burka (jburka@Glue.umd.edu) wrote: >: In article <941008160532702@solar.org>, >: Barry Klein wrote: >: >in any of my books. On his kite, the leading edge spars went from the >: >wingtips to just past the spreader. From there the sail formed the >: >leading edge up to the nose. I thought this kinda weird. Why is it >: >done this way rather than a full spar nose to wingtip like on regular >: >deltas? >: [Jeff's good stuff deleted] >: Unfortunately, I'm nowhere near my stash o' kite books, so I can't check to >: see if any have DC plans >Margaret Greger's _More Kites For Everyone_ has a DC plan. Moulton & Lloyd, Kites: A Practical Handbook, has a DC plan. >: (and no, my memory isn't good enough to recall, >: Anne... ;-) >So sad, in one so young ;-) memory...? I have forgot what's that? Simo -- Simo.Salanne@csc.fi STACK Finland = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = =