Forums > Windsurfing Foiling

Self adjusting foil like in Moth hydrofoils

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Created by SA_AL > 9 months ago, 27 Feb 2021
SA_AL
270 posts
27 Feb 2021 2:16AM
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I am wondering if there is any foil available like they are using for Moth hydrofoils. It appears Taaroa foil has a module somewhat adjusting. Could someone comment on the ride of the new Taaroa foil with adjusting foilflap?



You could see the module at 34 second mark here

LeeD
3939 posts
27 Feb 2021 2:57AM
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Wouldn't that take the FUN out of wind/wingfoiling?
Why don't you just sit at home and watch video?
Then you can PRETEND you are out there doing it.

gregwho
NSW, 156 posts
27 Feb 2021 7:08AM
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Making better & more efficient foils wouldn't take the fun out of the sport. Ask riders of mountain bike ebikes who use the power assist on climbs to get way more downhill runs in for the same amount of time.

Adjustable foils could provide a huge speed advantage changing from high lift to get out of the water to low lift & low drag configuration once flying.

Sandman1221
2776 posts
27 Feb 2021 5:08AM
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gregwho said..
Making better & more efficient foils wouldn't take the fun out of the sport. Ask riders of mountain bike ebikes who use the power assist on climbs to get way more downhill runs in for the same amount of time.

Adjustable foils could provide a huge speed advantage changing from high lift to get out of the water to low lift & low drag configuration once flying.


I agree, have thought of something just like that to get up easily, and then level out to reduce drag, but I now get up so easily on my AFS Wind95 foil that I stoped thinking about it!

LeeD
3939 posts
27 Feb 2021 6:04AM
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Exactly.
As a. Beginner, you think of all sorts of crap to help you get going.
One you get the TOW in, and start to progress, you learn to work within the system, and upgrade rather than innovate.
That goes for every sport.

Grantmac
1955 posts
27 Feb 2021 10:53AM
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On a Moth or other foiling dinghy the sailor weight is between 50 and 65% of the total mass. On a windfoil setup the sailor is between 65 and 85% of the mass, plus the rig can be dynamically shifted. So while dinghys need a foil which automatically adjusts height, wind foils just need weight shift.

Adding complexity won't increase performance otherwise racers would be doing it.

gregwho
NSW, 156 posts
27 Feb 2021 8:20PM
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If reducing the overall camber of the foil wouldn't increase its speed, gliders wouldn't bother doing it with a negative flap setting. Not all gliders use flaps but those that do generally have better top end speed.

it's a lot more than "Once you learn how to do it right, you won't bother". Foils with adjustable camber via elevator or flap can produce more lift at low speed AND less drag at high speed.

berowne
NSW, 1219 posts
27 Feb 2021 11:33PM
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gregwho said..
Making better & more efficient foils wouldn't take the fun out of the sport. Ask riders of mountain bike ebikes who use the power assist on climbs to get way more downhill runs in for the same amount of time.

Adjustable foils could provide a huge speed advantage changing from high lift to get out of the water to low lift & low drag configuration once flying.


Totally agree... with both sides of the argument. The lift needed to get flying at 10kts is totally different to what is needed and wanted at 20kts so something like this might help you get flying with a smaller wing (less drag) and then stay in control as speeds increased.
But the control is interesting. How would you have self levelling flight I ride height and still be able to control the foil and turn in to a gybe or on a wave face?

I think it could have a place...

SA_AL
270 posts
28 Feb 2021 4:27AM
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Their design is very interesting. They claim that you could adjust the flap by smartphone. www.taaroa-hydrofoil.com/up-product


Sandman1221
2776 posts
28 Feb 2021 7:59AM
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SA_AL said..
Their design is very interesting. They claim that you could adjust the flap by smartphone. www.taaroa-hydrofoil.com/up-product



Oh boy, took years to get no texting while driving laws passed, now they want us to be playing with our smart phones while on the water and in-flight, yikes!

utcminusfour
630 posts
1 Mar 2021 9:13PM
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I am waiting patiently for this technology to mature. It's a no-brianer.

Windbot
475 posts
1 Mar 2021 10:55PM
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utcminusfour said..
I am waiting patiently for this technology to mature. It's a no-brianer.


Who is brian?

dejavu
812 posts
1 Mar 2021 11:30PM
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Windbot said..

utcminusfour said..
I am waiting patiently for this technology to mature. It's a no-brianer.



Who is brian?


Here's the answer to your question (foiling does require divine intervention):

en.wikipedia.org/wiki/Monty_Python%27s_Life_of_Brian

BSN101
WA, 2253 posts
3 Mar 2021 5:26AM
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It was being tried by a Perth sail maker. Not sure how far it's come as yet.



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"Self adjusting foil like in Moth hydrofoils" started by SA_AL