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by GregK
Tue May 08, 2018 1:37 pm
Forum: Kitesurfing
Topic: Are Pulley bridles more tolerant to stretch/shrink?
Replies: 26
Views: 9052

Re: Are Pulley bridles more tolerant to stretch/shrink?

Sandras, apologies if you felt under attack, not my intention at all. I agree with some of what you have said, but other statements I don't, for the reasons stated. And you did request comments & feedback. Yes your vector analysis, I agree with it, no need to horizontally hang a pound. Vector analys...
by GregK
Mon May 07, 2018 9:24 pm
Forum: Kitesurfing
Topic: Are Pulley bridles more tolerant to stretch/shrink?
Replies: 26
Views: 9052

Re: Are Pulley bridles more tolerant to stretch/shrink?

Again, my understanding is: I assume as the AoA increases these A1 and A2 get loaded more and more. I wouldn't remove them. They are unloaded when depowered and sheet out. But you are so certain from your vector analysis that A2 is very lightly loaded, so just remove A2. I'm certain that A1 is load...
by GregK
Mon May 07, 2018 9:11 pm
Forum: Kitesurfing
Topic: Are Pulley bridles more tolerant to stretch/shrink?
Replies: 26
Views: 9052

Re: Are Pulley bridles more tolerant to stretch/shrink?

the CoM (center of moment) Define center of moment please, not familiar with that term. If you are meaning the centre of the mass then that point is fixed on a solid/rigid object. If when sheeting in the wingtips come forward ( i.e. kite is rotating about a point up near the top/centre ) then the u...
by GregK
Mon May 07, 2018 7:26 pm
Forum: Kitesurfing
Topic: Are Pulley bridles more tolerant to stretch/shrink?
Replies: 26
Views: 9052

Re: Are Pulley bridles more tolerant to stretch/shrink?

Vector analysis on real picture /experiment show that a2 does not carry load, because if it would a1 and al1 would not be parallel! Looking at that picture of the kite and bridle, definitely agree that A2 does not carry any significant load and could be eliminated; LE of the kite is likely stiff en...
by GregK
Mon May 07, 2018 7:06 pm
Forum: Kitesurfing
Topic: Are Pulley bridles more tolerant to stretch/shrink?
Replies: 26
Views: 9052

Re: Are Pulley bridles more tolerant to stretch/shrink?

... the bridle of Reo as an example of a non pulley kite : 1) For pulley less kites only one of the A1,A2,A3,A4 carries the load of the front lines (the rest have a very small load that just keeps the shape of the kite) A1 (and the back lines) is carry the load at the maximum sheet in and A4 carrie...
by GregK
Mon May 07, 2018 7:36 am
Forum: Kitesurfing
Topic: Are Pulley bridles more tolerant to stretch/shrink?
Replies: 26
Views: 9052

Re: Are Pulley bridles more tolerant to stretch/shrink?

... if you add all vectors in a (non accelerating) node they should equal zero in the 3d space AND in every 2d projection of it. No? Yes, agree with you there, but have you considered the possibility that the Reo bridle diagram isn't a true front-view projection of a 3D CAD model of LE and bridle, ...
by GregK
Sun May 06, 2018 8:21 pm
Forum: Kitesurfing
Topic: Are Pulley bridles more tolerant to stretch/shrink?
Replies: 26
Views: 9052

Re: Are Pulley bridles more tolerant to stretch/shrink?

And that front view of the Ozone Reo is a frontal projection of the bridle geometry, not a true-view of the A1/A2/AL1 plane, so the angles shown in that frontal projection are not true, but rather projections onto the front view plane.
by GregK
Wed Apr 25, 2018 3:40 am
Forum: Kitesurfing
Topic: Bridle Modification to LEI Kite
Replies: 4
Views: 1914

Re: Bridle Modification to LEI Kite

If the kite sits somewhat deep and still has a lot of front line pull with the bar sheeted way out ( back line slack ) then the front tow point is slightly aft of the centre of effort and it will fly closer to the edge of the window if the tow point is moved forward. If it sits back but depowers wel...
by GregK
Wed Apr 25, 2018 1:23 am
Forum: Kitesurfing
Topic: Bridle Modification to LEI Kite
Replies: 4
Views: 1914

Re: Bridle Modification to LEI Kite

Yes, by modifying the bridle with any combination of front bridle segment length changes or the location of bridle attachment points that shifts the tow point slightly aft and close to the centre of lift will make a kite park slightly deeper. The trade-off for this deeper position is reduced de-powe...
by GregK
Wed Apr 18, 2018 9:36 pm
Forum: Kitesurfing
Topic: biggest regret purchase
Replies: 77
Views: 25010

Re: biggest regret purchase

Wind Tools Mosquito Pro KS 9+ Terrifying when slightly over-powered . No more than a 4 knot wind range on that kite. Saw the best kiter around at that time get thrashed when he took out his 7.5 over-powered. This water-relaunchable RAM air used condoms with the ends cut off for the air-inlet valves,...

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