Contact   Imprint   Advertising   Guidelines

Search found 438 matches

Go to advanced search

by Europ2
Thu May 30, 2019 11:32 am
Forum: Gear Builders
Topic: An object in a fluid
Replies: 22
Views: 798

Re: An object in a fluid

We started off with a conceptual cube, and will be moving to a conceptual triangle. I would appreciate you relating the influence of the edge for a moving cylinder : - a cylinder with round front edge = modern submarines - a cylinder with sharp front edge = a kitefoil fuselage - impact of von karma...
by Europ2
Mon May 27, 2019 11:49 pm
Forum: Gear Builders
Topic: Plywood surf foil wing
Replies: 22
Views: 1804

Re: Plywood surf foil wing

Another fast candidate, easy to route because flat underneath (intrados) : Aquila9.3 smoothed and x0.8 = Aquila7.4 Airfoiltools.com allow to slim airfoil sections down using the "Airfoil plotter" menu on the left. http://airfoiltools.com/airfoil/details?airfoil=aquilasm-il Aquila9.3 and 7.4 smoothed...
by Europ2
Sun May 26, 2019 3:09 pm
Forum: Gear Builders
Topic: Plywood surf foil wing
Replies: 22
Views: 1804

Re: Plywood surf foil wing

Hey @Jyoder I've read you have 1"thickness / 9"chord [Edit] = 11% thickness to chord ratio (TR) 1 - What is you airfoil section ? 2 - What is you top speed with this plywood wing ? 3 - Do you think 0.88 inch thick ensuring 8% TR would have been possible with good stiffness ?? (0.88" thick /9" chord ...
by Europ2
Sun May 26, 2019 2:46 pm
Forum: Kitesurfing
Topic: Aluminum foil mast-fuse connection issues
Replies: 2
Views: 259

Re: Aluminum foil mast-fuse connection issues

Cannot be deleted.
by Europ2
Sat May 18, 2019 6:59 pm
Forum: Hydrofoil
Topic: Is it just me or does pumping a foil...
Replies: 24
Views: 1900

Re: Is it just me or does pumping a foil...

I'm sure there will be innovations, maybe a hinged wing or something that gives a force multiplier or something. I read somewhere that http://zfins.eu from Estonia have just released a front wing with a flexible trailing edge. Targeted for racing where this feature allows higher speeds. Curious if ...
by Europ2
Thu May 09, 2019 10:37 pm
Forum: Hydrofoil
Topic: How thick is your wing?
Replies: 12
Views: 616

Re: How thick is your wing?

But some says that the "Surf/SUP" wings especially, are often really thick, but HOW thick? Could some measure theirs so we get an idea of thickness? Meaning, how thick is the wing 2-3 inch from the center, and what is the chord at this point? This ratio will give you the wing thickness in percent. ...
by Europ2
Wed Apr 03, 2019 1:21 pm
Forum: Hydrofoil
Topic: The F-One wing
Replies: 4
Views: 596

Re: The F-One wing

Small wingspan = small surface areas = low investment (TPU, spi, dacron).
IMHO, for DiYers, a reasonable level of difficulty before starting the construction of a kitesurf wing.
by Europ2
Mon Mar 11, 2019 10:42 pm
Forum: Gear Builders
Topic: Gong parts for Homebuilds
Replies: 4
Views: 1407

Re: Gong parts for Homebuilds

faklord wrote:
Fri Oct 12, 2018 8:24 pm
Masts : (...) the mounting holes do not run through the full-length, so not easy to cut down.
How did you guess that ? A screwdriver in the screw hole ?
by Europ2
Wed Mar 06, 2019 11:27 am
Forum: Hydrofoil
Topic: Adapter to use Moses with inexpensive Aluminum Slingshot Masts
Replies: 40
Views: 2836

Re: Adapter to use Moses with inexpensive Aluminum Slingshot Masts

Any chance you have an adapter in the works that will work with alu mast on the Lift Foil? That exists here but not sure you can get it separately... When asked politely, everything is possible :wink: :wink: If not, as it looks like a small KF box (ie tapered on the 4 faces), replicate the original...
by Europ2
Wed Mar 06, 2019 11:26 am
Forum: Hydrofoil
Topic: North speedster GT ?
Replies: 9
Views: 774

Re: North speedster GT ?

houstonkiteboarding wrote:
Wed Mar 06, 2019 12:36 am
The north speedster felt kind of springy to my crew due to the flex of the wing,
The North Speedster is made in "forged carbon" that is the material (resin and shopped fibre mix) is shaped in a die. Maybe this explains what you feel.

Go to advanced search

cron