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Lightest wind speeds for foiling?
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bert



Joined: 10 Apr 2000
Posts: 610

PostPosted: Sat Feb 09, 2019 2:46 pm    Post subject: Reply with quote

[quote="gregnw44"]This post is not regarding "how light can the wind be to foil"... but more data on "what kinda gear can you foil" with.

Yep..foiling has become a game changer.



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dcharlton



Joined: 24 Apr 2002
Posts: 372

PostPosted: Mon Feb 18, 2019 4:19 pm    Post subject: Reply with quote

Bert, are those double concave doors you're using???
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windward1



Joined: 18 Jun 2000
Posts: 1155

PostPosted: Tue Feb 19, 2019 1:12 am    Post subject: Reply with quote

Well, this might be similar in ride prior to lifting on to the foil


https://www.youtube.com/watch?v=mJFHx0qmJ8s


And then there was the original Darby windsurfer:

[img][/img]


I believe one of the earlier windsurfing magazines had a picture of Mike Waltz or Matt Schweitzer or somebody actually getting a door to plane.



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cgoudie1



Joined: 10 Apr 2006
Posts: 2259
Location: Killer Sturgeon Cove

PostPosted: Tue Feb 19, 2019 10:38 am    Post subject: Reply with quote

I have to say, I dig the hinges. Nice touch. Foil on!

-Craig
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windward1



Joined: 18 Jun 2000
Posts: 1155

PostPosted: Thu Feb 21, 2019 12:45 am    Post subject: Reply with quote

And Bert, The new boards keep touting parallel rails. You have outdone them.
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westender



Joined: 02 Aug 2007
Posts: 1167
Location: Portland / Gorge

PostPosted: Thu Feb 21, 2019 12:59 pm    Post subject: Reply with quote

I've had to do quite a few repairs for delaminations on those boards. Watch out.
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Sandman1221



Joined: 02 Oct 2016
Posts: 7

PostPosted: Wed Apr 24, 2019 11:43 am    Post subject: 8 mph AFS foil with F800 wing 9.0 sail Bolt 135 190 lb rider Reply with quote

With a couple of sail pumps on a AFS 95 foil with F800 wing (+1100 cm/sq) I can get up in 8 mph winds with a 9.0 sail and Bolt 135 board (I weight 190 lbs), I have been told by Andy at Wind-NC that you need to reach 10 mph to foil, period. I was out and the wind dropped to 4-5 mph, so I started to just pump the 9.0 sail rhythmically, and really started to move, was surprising how fast. So its all about how good someone is at pumping the sail and board to get enough forward speed to get to 10 mph in order to get up on the foil. A wider board will slow you down sub-foiling in those wind speeds.
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jirvin_4505



Joined: 07 Jul 2015
Posts: 52

PostPosted: Thu Apr 25, 2019 9:15 pm    Post subject: Foil vs Lightwind equipment Reply with quote

A little OT .... a little video on a lightwind day

We were all drooling sitting on the beach watching the foils so effortlessly use the flat water and light winds.

I had rigged the lightwind gear but still not enough wind to go out

My 75kg son took the gear out instead and had some lightwind fun up against with the foils.

Enjoy.....

https://youtu.be/CeYs7ryWBag

Cheers Jeff
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fathomfathom



Joined: 25 Jul 2005
Posts: 47

PostPosted: Sun Apr 28, 2019 12:54 pm    Post subject: Reply with quote

After a week in Hatteras foiling daily (except for the long distance race day).
145lbs
6' 110L custom Reef Warrior board
GoFoil IWA


-8-12 knots 5.7 Naish Flyer
-10-15 knots 4.3 KS3
-15-20 knots 3.7 KS3
-20-25 knots 3.3 (could have used smaller)

-6-8 knots 7' 120L custom Reef Warrior board , 280 Maliko on 5.7 Naish Flyer with 2-3 pump
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Wind-NC.com



Joined: 30 May 2007
Posts: 973
Location: Formerly Cape Hatteras, now Burlington, VT!

PostPosted: Fri May 03, 2019 12:25 pm    Post subject: Reply with quote

Sandman1221 wrote:
With a couple of sail pumps on a AFS 95 foil with F800 wing (+1100 cm/sq) I can get up in 8 mph winds with a 9.0 sail and Bolt 135 board (I weight 190 lbs), I have been told by Andy at Wind-NC that you need to reach 10 mph to foil, period. I was out and the wind dropped to 4-5 mph, so I started to just pump the 9.0 sail rhythmically, and really started to move, was surprising how fast. So its all about how good someone is at pumping the sail and board to get enough forward speed to get to 10 mph in order to get up on the foil. A wider board will slow you down sub-foiling in those wind speeds.


I really need to get a GPS to put some real numbers to these claims, but yes, it seems to me like almost all (normally sized) foils need about the same amount of forward speed to start generating flow over the wings, and to start lifting. Maybe it's 10mph, maybe it's 8, it is just a guess at the moment.

The huge wings seem to shine when you get into a lull and start slowing down- the bigger the wing, the lower the "stall speed" tends to be, and you can just keep flying and flying and flying at the most ridiculously slow speeds until you get the next puff of wind to accelerate again. The smaller wings will lose flow sooner and you'll plop back down to the water and have to start all over again, whereas the huge wings might coast you through the lull.

Of course, there's about 8,000 different foils out there now, so the generalities won't apply to every make and model...

_________________
formerly known as hodad.andy

http://wind-nc.com
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