klimm wrote: ↑Tue Dec 18, 2018 8:10 pm
Seam allowances are inside the cells of course. On the outside I also did an extra sew, afterwards, I packed the whole in the inside out of the kite, with about 6 needles as marks, sewed and pulled the kite out from that salami
Just right
klimm wrote: ↑Tue Dec 18, 2018 8:10 pm
Indeed the As are not at 0 but few centimeters inside , like about 12-15 cm from the nose .
Measure that from the center, then calculate % of the chord. Other line rows as well.
klimm wrote: ↑Tue Dec 18, 2018 8:10 pm
I kept the lines because, with some adjustments of the lines. I might be able to take a front picture, another from beneath in order to have some realistic dimensions for the SP, and a better Idea of the shape.
Ok, but I don't think that will help. Just make a model from it and trust it. You must find out what is 2-D shape of the kite (plan view) (actually you see that from Ozone line plan picture well enough) and then make a model and decide how much canopy curve your kite will have. Use profile alignment adjustment (tip/center), input cell count, wing span, center chord, tip chord (% of center), kite shape (elliptic, 0% square, some front curvature not much if any rear curvature) and rib spacing (propositional to chord degree %). You probably have to adjust kite shape manually to get wingtips correctly shaped because they are so narrow. That option is on same window.
klimm wrote: ↑Tue Dec 18, 2018 8:10 pm
I don't know where the tow points will result.
Don't worry about that, use default value. You must adjust tow point/AoA anyway, this is done with some adjustment lines with knots. Your kite will fly with default value, but it may collapse etc.
klimm wrote: ↑Tue Dec 18, 2018 8:10 pm
I wish to keep most of anchor points because this way I have a good chance to keep the canopy shape reasonable.
That is ok, but you must cascade them chordwise, at least if you want to try some depower (mixer/speed system) in it. It will become extremely complicated if that many line rows is tried to be constructed to each having their own pulling ratio.
klimm wrote: ↑Tue Dec 18, 2018 8:10 pm
At level B(about 25% chord) I have a width of the foil(profile) of 41 cm, total chord is 245cm so , about 17 % .
Sounds correct.
klimm wrote: ↑Tue Dec 18, 2018 8:10 pm
I need to decide about the depower system too. Here the SP won't help much, I see I can't decide much about the way the lines are cascading .
Yes. Spanwise cascades are solved, do it like my plan suggest (it is also quite close to original bridle). Chordwise there is many options, both for mixers and how line rows cascade. I suggest to use normal two-pulley mixer (1:2:4 pulley ratios). One possibility could be:
A: fixed
B: (first level already cascaded together) 1:4
C and D (cascaded together) 1:2
Z (brakes) 1:1 (pulled straight)
Then you must decide where possible cascades occur. Closer to the wing the simpler upper levels will be.
On more thing. Because it is a PG wingtip bridle is different to what it is usually in kites. One method to solve it is to cascade first level (A-B-C)together, then second level is a long single line which goes to C from mixer and is pulled 1:2. Brake will be normally at the TE wingtip.