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Soft edge
Posted: Mon Nov 18, 2019 10:46 am
by CHRISPI
I have been experimenting with vinyl wrap on my latest boards , and found with layering clear vinyl makes a perfect trailing edge profile finishing with a razor thin soft edge ,stiffness can be added or subtracted with more or less layers .I have read a lot about vortex generation with soft trailing edges on insect wings and fish fins . How important is the trailing edge on the overall performance of a foil, fin, wing, prone board? On my boards it’s probably very important with the fin tips in the water all the time.
Re: Soft edge
Posted: Mon Nov 18, 2019 10:56 am
by GeoffreyLevens
I know with hard fins on standup boards, tiny differences in trailing edge foil can make the difference between a loud "hummmm" and not. And almost certainly that hum is lost speed, drag of a detrimental type
Re: Soft edge
Posted: Mon Nov 18, 2019 2:56 pm
by CHRISPI
The trouble with performance experiments and trying different approaches is it creates more questions than answers, and the old question is how you measure it. I feel wave gardens might be the answer, it something you can budget for and get guaranteed constant size waves so you can set a base line for testing. You can budget for a surf trip but not get consistent waves. I am privileged to be able to make use and experiment with wave riding tools, I feel making your own boards and riding then has got to be good for mind and body?
Re: Soft edge
Posted: Mon Nov 18, 2019 3:27 pm
by GeoffreyLevens
CHRISPI wrote: ↑Mon Nov 18, 2019 2:56 pmI feel making your own boards and riding then has got to be good for mind and body?
Very likely will help stave off senility over the years
And yes, if you can get to a facility that has constant almost identical waves peeling off from a machine, that's ideal.
Re: Soft edge
Posted: Mon Dec 09, 2019 8:38 am
by krusher74
Well, you have a testing ground down in Bristol at the wave. no too far for a road trip.
I would not recommend surf Snowdonia in wales as the wave there was less like a normal ocean wave.
Re: Soft edge
Posted: Fri Jan 03, 2020 9:08 am
by Worrall
Did they make the wave at Snowdonia like that deliberately btw?
Re: Soft edge
Posted: Tue Apr 14, 2020 1:15 pm
by krusher74
Worrall wrote: ↑Fri Jan 03, 2020 9:08 am
Did they make the wave at Snowdonia like that deliberately btw?
no, I feel its just a sub-optimum designed bottom profile, that is floored due to trying to make a wave that can be used by more than one person at a time. There is the main wave which I feel is sub-optimum dut to there attempt to also make an intermediate wave from the same piece of swell. Their technology is the same as kellys wave pool, which works due to a bottom profile design for one wave only