Article 27654 of rec.kites:
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From: miel@knoware.nl (Emiel Stroeve)
Newsgroups: rec.kites
Subject: Re: Chevron progress (was Soft kite tuning)
Date: 14 Jul 1996 19:00:09 GMT
Organization: EuroNet Internet
Lines: 38
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References: <9607100941.aa03230@tug.com> <4s10os$6h4@news.euro.net> <DuEFIu.9Gw@tug.com> <DuEHsx.9q7@tug.com> <31e66492.262816@news.knoware.nl>
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pdjnjvt@knoware.nl (Peter de Jong) wrote:

>Another thing is bridling. The longer the primary bridle is the harder
>it is for the kite to adapt to changing conditions. IMO your best bet
>with an given profile is to try to make the primary as short as
>possible. 

Definitly, I used to stretch the tip bridles so all the b-lines are
equal in length.  By reducing the tip chord, the bridle gets very out
of control in this way, adjusting and tuning it is very hard. Not to
mention the introduced drag. So I now use the standard 100% chord
length bridle and add a extension line between the primary bridle knot
and the crossbridle (for the crossbridle connects in a straight line
to the prim. bridle).

I now added everything in a spreadsheet. Starting point is *a* profile
for reference, from thereon everything is scaled to the right
dimensions. the only input is the chord length of every profile. This
is done in autocad to get a nice Aspect ratio-visual-foil design. I
also used a formula to decrease the cell width in some relation to the
elliptical shape of the foil.

Next comes Winfoil (really, really a great piece of software) to print
the profiles.

cheers,

Emiel

added some buggy stuff in my homepage (video, pix)


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Emiel Stroeve             The Netherlands              (oo)         (oo)
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