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by BWD
Wed May 29, 2019 1:36 am
Forum: Hydrofoil
Topic: Hand Shaped Beauty
Replies: 32
Views: 4986

Re: Hand Shaped Beauty

I have a soft vee/belly to the rocker entry area of my diy foilboard and ~10 cm nose scoop and it works quite well to avoid nose dives. The rocker is needed but i know the belly is working too when i lose lift and see spray coming out from under the boards sides while the rails stay dry. Kinda neat ...
by BWD
Wed May 29, 2019 1:12 am
Forum: Hydrofoil
Topic: The Duotone Wing
Replies: 197
Views: 11949

Re: The Duotone Wing

Yo that commentary is next level bro
by BWD
Tue May 28, 2019 8:12 pm
Forum: Hydrofoil
Topic: Strapless foil aid?
Replies: 7
Views: 411

Re: Strapless foil aid?

If you can’t sink the rail sink the tail? The board may rotate slower this way so you have time to get going.
If the board is too chunky this might not work either...
by BWD
Tue May 28, 2019 1:33 am
Forum: Hydrofoil
Topic: Aerodynamics vs Hydrodynamics . Behind the Design with Ken Winner
Replies: 7
Views: 804

Re: Aerodynamics vs Hydrodynamics . Behind the Design with Ken Winner

Its telling when “industry experts” talk about cavitation in sub-40 knot conditions.
I wonder how low a speed actual cavitation can be achieved. Normally in sailing hydrofoils it happens over 50 knots, 40 for a poor design (or one unsuited for speed records)...

(PS: obviously thwy mean ventilation)
by BWD
Sun May 26, 2019 3:18 am
Forum: Kitesurfing
Topic: Aluminum foil mast-fuse connection issues
Replies: 2
Views: 257

Re: Aluminum foil mast-fuse connection issues

Switch to a slingshot mast to go with slingshot fuse is probably the way to go. Make sure the bolts are lining up just right, first. Solid fuse might help. Different bolt supllier might help. Titanium instead of stainless? If nothing helps otherwise, relocating wing so it is farther back might help ...
by BWD
Thu May 23, 2019 1:14 am
Forum: Hydrofoil
Topic: Wing loading as a metric
Replies: 21
Views: 967

Re: Wing loading as a metric

The foil moves through the water, yes. Moving water down is what gives the reaction force called lift that holds the rider up. Often you can see a disturbance in the water level behind a rider of the foil is near the surface, like a boat wake. Check some videos of foils riding in shallow water over ...
by BWD
Thu May 23, 2019 12:37 am
Forum: Kitesurfing
Topic: Wingsurfing - Intel - forum topic?
Replies: 68
Views: 3721

Re: Wingsurfing - Intel - forum topic?

Ok i’ll bite: 2 struts seems smart to me, since some of the other wings look a bit too floppy (no wonder waterstarting is hard!). In the video above you can see old footage of a guy in maui riding fast on a kitewing with rigid frame, juxtaposed with a guy foiling kinda fast on a foil board. The rigi...
by BWD
Wed May 22, 2019 9:38 pm
Forum: Hydrofoil
Topic: Wing loading as a metric
Replies: 21
Views: 967

Re: Wing loading as a metic

the stab i think still makes a downward force as it operates in waterflow that has been curved down by the main foil.
Some commentary of those who have ridden stabless reflects this, as they seem to have more lift with no stab, not less, I think.
by BWD
Tue May 21, 2019 9:44 pm
Forum: Hydrofoil
Topic: The Naish Wing-Surfer
Replies: 159
Views: 7874

Re: The Naish Wing-Surfer

Do those who want to stop discussion of hand held wings here live in places where kiting itself is ridiculed, restricted or banned.
??
Do we need to end the cycle of abuse , so we can share the stoke bros?
by BWD
Mon May 20, 2019 4:39 pm
Forum: Kitesurfing
Topic: Secondary fin recommendation for BRM Paipo
Replies: 5
Views: 239

Re: Secondary fin recommendation for BRM Paipo

I think the originals were 2"/50mm. on my homemade paipo copy I used to use the old (2006?!) 2.5" "surf dog" twintip fins made I think by rainbow, for a little more grip. Any big 2-2.5" twintip or wake type fin should approximate the original fairly well. Smaller for looser, bigger for grip, deep an...

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