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by Hansen Design
Thu Aug 08, 2019 4:11 pm
Forum: Kitesurfing
Topic: Bladderless Construction
Replies: 8
Views: 949

Bladderless Construction

Inflatable kites are the only widely distributed product that still relies on a sewn case and internal bladder with associated expense, weight and producer / consumer frustration. For quite some time I have been advocating to nearly every major brand, fabric suppliers and production facilities to pu...
by Hansen Design
Sat Aug 03, 2019 7:43 am
Forum: Kitesurfing
Topic: WinGsurfing; surfplan help
Replies: 14
Views: 766

Re: WinGsurfing; surfplan help

Hello Wingstu.
Not sure which version you are using. Select the canopy shape menu and choose detailed / change. Input negative values for dihedral.
Cheers!
by Hansen Design
Sat Aug 03, 2019 4:54 am
Forum: Kitesurfing
Topic: WinGsurfing; surfplan help
Replies: 14
Views: 766

Re: WinGsurfing; surfplan help

Easy to sew Twin Strut WindWing
Twin-Strut-WindWing-1.jpg
Twin-Strut-WindWing-2.jpg
Twin-Strut-WindWing-3.jpg
by Hansen Design
Sun Apr 21, 2019 6:59 pm
Forum: Hydrofoil
Topic: The Duotone Wing
Replies: 283
Views: 18654

Re: The Duotone wing

Pullstrings: That video was filmed 30 years ago !! At Windwing in Berkeley, CA, we worked closely with Tom and Jim to develop and optimize the WindWeapon and we became their production supplier. The swept dihedral geometry is a primary design feature that I suggested to Tom to solve some initial unw...
by Hansen Design
Thu Apr 04, 2019 5:38 pm
Forum: Kitesurfing
Topic: does anyone else care about linear bar response?
Replies: 28
Views: 1325

Re: does anyone else care about linear bar response?

Theoretically, lift is mostly linear with AOA up to stall. Foils with speed systems maintain the front towpoint and tip the profile uniformly with bar movement. Inflatos have a wide variety of bridle systems which allow towpoint movement and structural shape changes which may or may not be proportio...
by Hansen Design
Tue Mar 19, 2019 8:48 pm
Forum: Foil Kites
Topic: Disconnecting Z or more at the tip
Replies: 21
Views: 1472

Re: Disconnecting Z or more at the tip

For the limited design brief, none. It is a worthy improvement.
by Hansen Design
Tue Mar 19, 2019 5:27 pm
Forum: Kitesurfing
Topic: Good kite for boat
Replies: 69
Views: 2947

Re: Good kite for boat

Hello Munti:
PM sent.
Cheers!
- Bill
by Hansen Design
Tue Mar 19, 2019 5:12 pm
Forum: Foil Kites
Topic: Disconnecting Z or more at the tip
Replies: 21
Views: 1472

Re: Disconnecting Z or more at the tip

I have made a number of RA foils with reduced or no bridling at the tips to allow them to self-align reducing drag and tip tuck.
by Hansen Design
Wed Mar 06, 2019 4:01 am
Forum: Kitesurfing
Topic: Auto-Zenith high performance kite
Replies: 27
Views: 2937

Re: Auto-Zenith high performance kite

Aft CG behind CE will cause a natural gravitational-induced upward yaw resulting in autozenith tendancy proportional to angle away from 12:00. Aft CG in a towed airborne vehicle is beneficial to keep the towline(s) tight. Autostable profile will also keep the lines tight. But, If too much of either,...
by Hansen Design
Sat Mar 02, 2019 5:16 am
Forum: Foil Kites
Topic: DIY AR6 closed cell Quadrifoil Style
Replies: 18
Views: 1831

Re: DIY AR6 closed cell Quadrifoil Style

Hello Schietwedder:
Very cool to see your approach to embark on this challenging project, both cutting/sewing as well as design - especially with custom profiles. Looking forward to seeing your next construct in the air!
Cheers!
- Bill

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