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by Sandras
Sun May 06, 2018 7:25 pm
Forum: Kitesurfing
Topic: Are Pulley bridles more tolerant to stretch/shrink?
Replies: 26
Views: 9225

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

Don't "ASS-u-me" just do the vector analysis. It's simple for a string or group of strings. As we say in engineering, "you can't push a rope." Oh, I'm glad that we can talk with vectors! Just take the first drawing (Ozone Reo from the pdf manual) You see that A1 is parallel to AL1 that simply means...
by Sandras
Sun May 06, 2018 2:55 pm
Forum: Hydrofoil
Topic: Bracuru Hover board - Excellent !
Replies: 18
Views: 9857

Re: Bracuru Hover board - Excellent !

Actually I remember one of your heroes, Greg, saying the same thing like Peter when talking about his board. Do you want me to find it for you?
by Sandras
Sun May 06, 2018 10:47 am
Forum: Hydrofoil
Topic: Bracuru Hover board - Excellent !
Replies: 18
Views: 9857

Re: Bracuru Hover board - Excellent !

Yeah, I guess I can be a mean ass. PF has a great contribution to this forum and from this to the HF scene in general. (I'm very grateful for the knowledge he offered here out of his free time) Having followed his posts, I'm quite sure that he's just sharing his opinion and impression and that he w...
by Sandras
Sun May 06, 2018 10:19 am
Forum: Kitesurfing
Topic: Are Pulley bridles more tolerant to stretch/shrink?
Replies: 26
Views: 9225

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

No, all the front lines will share the load regardless of pulleys or no. I can't agree on that. Just look at the drawing below. no pulley.JPG Let's assume that at this AoA (angle of attack) it is as you describe it. All bridle lines have load. Now imagine the AoA increasing (that is the trailing ed...
by Sandras
Sat May 05, 2018 7:58 pm
Forum: Kitesurfing
Topic: Are Pulley bridles more tolerant to stretch/shrink?
Replies: 26
Views: 9225

Are Pulley bridles more tolerant to stretch/shrink?

reo.JPG My understanding may be wrong and I welcome you to correct it. I paste 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 (a...
by Sandras
Sat May 05, 2018 7:18 am
Forum: Kitesurfing
Topic: Moving from Switchblade to FX
Replies: 33
Views: 12213

Re: Moving from Switchblade to FX

:thumb:
Wow! That is great!
Many thanks!
by Sandras
Fri May 04, 2018 1:29 pm
Forum: Kitesurfing
Topic: Moving from Switchblade to FX
Replies: 33
Views: 12213

Re: Moving from Switchblade to FX

... Do some research about how the window works, and what the relation between netto L/D is taking parasitic drag (weight/shape/wetted surface) into account and how that relates to the dynamics of the window. Try searching about towpoints, CoP and thrust in relation to AoA too while you're at it. Y...
by Sandras
Thu May 03, 2018 5:29 pm
Forum: Hydrofoil
Topic: Andersson Foils Bi-Directional
Replies: 20
Views: 8525

Re: Andersson Foils Bi-Directional

mrravethewave wrote:
Wed Apr 04, 2018 2:41 am
... Blah blah blah...

....Anyways I told Dan I was going to rant about his foil so that is what I am doing. I absolutely loved it.
How many people do you believe you have convinced that you are are an amazed customer that you are raving about this "awesome product "?
by Sandras
Wed May 02, 2018 6:01 pm
Forum: Foil Kites
Topic: DIY Foil Kites
Replies: 198
Views: 37600

Re: DIY Foil Kites

Just wanted to give a :thumb: to Stef for walking the walk! Fascinating thread! Thank you!

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