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by bacon2109
Fri Jun 28, 2019 2:44 pm
Forum: Hydrofoil
Topic: carbon vs Alu mast
Replies: 25
Views: 1924

Re: carbon vs Alu mast

it's not exclusily about weight, more thickness of the mast.... less thick, less drag,..... more speed. ----- quote for Bille Tue Jun 25, 2019 11:41 am " Not if your a DIY guy ! Carbon string, (tow) un-woven , can be had for about $20 / Lb , (0.453592kg) on the roll, (like fishing sting). That's che...
by bacon2109
Fri Jun 28, 2019 12:46 pm
Forum: Gear Builders
Topic: Pocket foilboard divynicell 80 core Ghetto build tips?
Replies: 19
Views: 954

Re: Pocket foilboard divynicell 80 core Ghetto build tips?

i'm on going to built a pocket board, no stringer it's nice to have a light board, you can use plywood as a pocket board, a bit heavy, difficult to keep the curve of the board, it may change in time 80kg 20cm divynicell : 20cm(8 inch) of what, wide, thick ? that's how i will do my build 3 ply of 1/4...
by bacon2109
Tue Oct 09, 2018 11:58 pm
Forum: Gear Builders
Topic: Where to start?
Replies: 14
Views: 1767

Re: Where to start?

Quote;
My idea is to focus on the board only.

check this 1, strait foward way to build a board, minimun shaper skill.
Some pics building a XPS, paulownia, carbon foilboard ; http://kiteforum.com/viewtopic.php?f=199&t=2400849
by bacon2109
Thu Oct 04, 2018 7:49 pm
Forum: Gear Builders
Topic: Has anyone redrilled a Moses T40 for a new mast position?
Replies: 6
Views: 1221

Re: Has anyone redrilled a Moses T40 for a new mast position?

Why a manufactuer would build a board that dont fit his foil ???
by bacon2109
Tue Jan 09, 2018 2:54 am
Forum: Hydrofoil
Topic: how do you sand your wings...?
Replies: 14
Views: 2934

Re: how do you sand your wings...?

from a french racer video on ; http://kitefoil.forumactif.org/t5189-le-vernis-freine?highlight=le+vernie+freine Sorry, not all info on the web is in english On YT, KZDnIQFGt2M title, "ENGIE Kite Tour Douarnenez J2" At 2 minutes in the video, the runner "Jean Guillaume Rivaud" talks about the ponsage...
by bacon2109
Fri Dec 15, 2017 2:04 pm
Forum: Gear Builders
Topic: Mast/Strut Fiber Angles
Replies: 30
Views: 5102

Re: Mast/Strut Fiber Angles

You're right, the conversation took another direction. as mentioned above, I put 5Kg test info, which gives a clue, in my opinion. the twist of my mast, looks good and flexsion too. And there is better. But like a child reaching out is hand from a moving car. he feels that it oscillates even if the ...
by bacon2109
Thu Dec 14, 2017 3:20 pm
Forum: Gear Builders
Topic: Mast/Strut Fiber Angles
Replies: 30
Views: 5102

Re: Mast/Strut Fiber Angles

I just weighed the mast = 1.60x Kg the mortise are made of fiberglass, stainless steel flange nuts (4 x 6mm ); -board side=KBox, -fuselage side=homemade and for learning, fiber glass wings I dont know the weight of a alu one, only hand weight a Shinn one, board and foil home made, board and foil wei...
by bacon2109
Thu Dec 14, 2017 4:56 am
Forum: Gear Builders
Topic: Mast/Strut Fiber Angles
Replies: 30
Views: 5102

Re: Mast/Strut Fiber Angles

yes, it's light. 6K CF (370g/m2)

---reading what i wrote on french forum---

..... sorry small mistake .... big one ......memory failing.
I used 18oz UD carbon fibre. about 610 g/m2.

good enough for learning foiling

I should have put 2 layer at 0 degree, but was getting to thick
by bacon2109
Wed Dec 13, 2017 1:40 pm
Forum: Gear Builders
Topic: Mast/Strut Fiber Angles
Replies: 30
Views: 5102

Re: Mast/Strut Fiber Angles

My build info (in french) for me at 90Kg; http://kitefoil.forumactif.org/t3854-j-ai-commence-la-fabrication-amateur-bien-sur with images, mast wrap by hand 0/+45/-45, had to remove a twist after epoxy cure, a bad day sanding CF, to not scrap it, i rewrap it. 1 good 0/+45/-45 layer, mast end up to be...
by bacon2109
Wed Dec 13, 2017 12:29 am
Forum: Gear Builders
Topic: Mast/Strut Fiber Angles
Replies: 30
Views: 5102

Re: Mast/Strut Fiber Angles

been writing to long, some answer were posted; @ tegirinenashi; for a mast , a DIY build, to reach a fair stiffness and torsion, you put 2 to 3 mm wall tickness of fibre carbon on each side. 1st answer (post) I've searched info on "structural composite beam". find somewhere , on the net; 0/-30/+30/-...

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