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by bacon2109
Fri Dec 15, 2017 2:04 pm
Forum: Hydrofoil Builders
Topic: Mast/Strut Fiber Angles
Replies: 27
Views: 880

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: Hydrofoil Builders
Topic: Mast/Strut Fiber Angles
Replies: 27
Views: 880

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: Hydrofoil Builders
Topic: Mast/Strut Fiber Angles
Replies: 27
Views: 880

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: Hydrofoil Builders
Topic: Mast/Strut Fiber Angles
Replies: 27
Views: 880

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: Hydrofoil Builders
Topic: Mast/Strut Fiber Angles
Replies: 27
Views: 880

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/-...
by bacon2109
Mon Oct 23, 2017 3:02 am
Forum: Hydrofoil Builders
Topic: Converting carbon bar(s) to fuselage (was: AoA split)
Replies: 4
Views: 488

Re: AoA split

all in the coefficent of lift (CL) of the selection of wings ( front and stab ) vs speed bandwith the front wing may have a AoA of 0 degree on the Rocket if the mesurement is read on it intrados flat surface in regard of the profile most of the foil have(around) 1/3 of the front wing area for the st...
by bacon2109
Mon Oct 09, 2017 1:21 am
Forum: Kitesurfing
Topic: Unhooking for big boys!!
Replies: 23
Views: 1499

Re: Unhooking for big boys!!

NO....
If I recall physic (math) ur weight no longer at 125Kg....
check Newton laws.
by bacon2109
Mon Sep 18, 2017 9:54 pm
Forum: Hydrofoil Builders
Topic: New North Foil's 'PA Carbon Mix 50'
Replies: 30
Views: 3367

Re: New North Foil's 'PA Carbon Mix 50'

carbon fiber reinforced polymer = CF with epoxy or polyesther or other resin ( room temp / high temp ), too vague......

50 MIX seem to be a added filler to the resin, (by weight 50% ), which one ?
or a
50% CF with 50% FG fiber cloth or 50% of other fiber
by bacon2109
Thu Sep 14, 2017 12:32 pm
Forum: Hydrofoil
Topic: Copper Aluminum paste as tef gel alternative ?
Replies: 13
Views: 1441

Re: Copper Aluminum paste as tef gel alternative ?

Try to find a dielectric grease,
if possible, a food grade grease and water resistant, to stop electric current which make corrosion.
by bacon2109
Mon Jul 17, 2017 2:07 pm
Forum: Hydrofoil
Topic: rescuing a foil board
Replies: 36
Views: 3122

Re: rescuing a foil board

I'm learning foiling now and got cauth in a similar sitiation. In fresh water with small current. Around Montreal, Canada. Speaking with other foilers, some carries swimming fins and even a big plastic bag!!!!! the one that are using foil kite going for miles and miles run. Yes, they all wear PFD. S...

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