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by kostantin
Thu Jul 25, 2019 8:49 pm
Forum: Videos
Topic: Unboxing: Moses Aluminium Foil Kit
Replies: 35
Views: 6175

Re: Unboxing: Moses Aluminium Foil Kit

edit this was wrote before Gunnar so sorry if something is redundant To kosta - its not so easy http://www.performance-composites.com/carbonfibre/mechanicalproperties_2.asp In hydrofoil mast almost all that matters is stiffness. This structure has defined thickness - So what define it stiffness is ...
by kostantin
Thu Jul 25, 2019 4:11 pm
Forum: Videos
Topic: Unboxing: Moses Aluminium Foil Kit
Replies: 35
Views: 6175

Re: Unboxing: Moses Aluminium Foil Kit

That's a bit surprising - why do you think it would be stiffer? :?: I do not think it is stiffer. I know it is stiffer. I have tested the flex. -- Gunnar I'm not questioning whether it is stiffer ... I'm asking why . Based on your experience with various foils, what do you think the reason for the ...
by kostantin
Fri Jul 19, 2019 2:42 pm
Forum: Hydrofoil
Topic: Twist Wings liquid force impulse
Replies: 19
Views: 2365

Re: Twist Wings liquid force impulse

Hi,

there was a song from Elvis Presly from the year 62 with the title " Return to sender "

This is very obviously a warranty or better a cash back.

I guess, the chinese demolded the hot wing to early and left it laying somewhere not straight.

tks

Kosta
by kostantin
Mon May 27, 2019 8:30 am
Forum: Kitesurfing
Topic: High Modulus Carbon
Replies: 5
Views: 983

High Modulus Carbon

Greetings Like I said for month's or years. Listen to this guy. Additional to his findings, I have the suspicion that some of the companies don't use epoxy but some resigns that cure extremly fast, to speed up the production line and some of them might use chinese carbon, which means glas and colour...
by kostantin
Sat Feb 09, 2019 3:07 pm
Forum: Hydrofoil
Topic: Another DIY foil
Replies: 64
Views: 20297

Re: Another DIY foil

Is it a cow ?
Nope
Is it a bear ?
Nope
Is it a snail ?

None of them quaks. This will :-)

by kostantin
Sun Dec 23, 2018 1:58 pm
Forum: Hydrofoil
Topic: Question Profile Go Foils ?
Replies: 24
Views: 5595

Re: Question Profile Go Foils ?

The wing is 3d printed and those "milling lines" are the layers of material laid down by the FDM printer. I bet those wing tips are glued on with some internal rod or bar. I'd be surprised if it held up. But an interesting tool for testing and interations. Greetings Tom, Lines of the FDM, hm I woul...
by kostantin
Sun Dec 23, 2018 11:16 am
Forum: Hydrofoil
Topic: Question Profile Go Foils ?
Replies: 24
Views: 5595

Re: Question Profile Go Foils ?

Greetings, I have serious doubts about this possibility. Scanning, I don't believe that the scan is accurate enough, when it comes to the profile. We are talking of less then a tenth of a millimeter. There a profiles that are extreme sensible at specific points. Printing, No material I know is even...
by kostantin
Sun Dec 23, 2018 10:53 am
Forum: Hydrofoil
Topic: Question Profile Go Foils ?
Replies: 24
Views: 5595

Re: Question Profile Go Foils ?

Greetings, I have serious doubts about this possibility. Scanning, I don't believe that the scan is accurate enough, when it comes to the profile. We are talking of less then a tenth of a millimeter. There a profiles that are extreme sensible at specific points. Printing, No material I know is even ...

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