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foil cavitating, ventilating, broaching, solution

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papasmerf
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foil cavitating, ventilating, broaching, solution

Postby papasmerf » Thu Sep 24, 2020 4:42 pm

as I continue down the Path of the Foil,, i am eating shit more and more. perhaps it is normal. our local spot generally has 1-3" wind wave swells on a freshwater lake,,, i've seen the waves higher but not too often. on the 85cm mast i am using, I will occassionaly come out of a bit of swell and the foil will exit into the trough,,,this seems to only happen when i am going fast or going upwind as much as possible. if i ride with the foil deeper in the water,, my board will skip across the tops of the waves.

also, I am trying to do very fast, hard carvey turns, really leaning at an angle, i notice the foil tip will also come out sometimes doing that, also causing a yard sale.

do I need a longer mast is the question? not too many very good foilers in my area,, only one really and he is on a 85cm mast but he is also more of cruiser, i dont' see him doing hard carving turns which i seem to like,,, but will a longer mast affect my fun carving turns is the question?

Jyoder
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Re: foil cavitating, ventilating, broaching, solution

Postby Jyoder » Thu Sep 24, 2020 5:35 pm

1. More time and practice will help learn the limits of your setup and get the most out of it.
2. A longer mast could help but downside is cost $ and less maneuverability.
3. A narrower board could help, but downside is cost $$ and maybe harder water start and different feel.

I have done all three and it suits my powered style of riding well. Most important is #1.
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papasmerf (Thu Sep 24, 2020 6:31 pm)
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juanpasala
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Re: foil cavitating, ventilating, broaching, solution

Postby juanpasala » Thu Sep 24, 2020 6:13 pm

As Jyorder Said, you can either get a longer mast (100-110), or a narrower board, but teh narrower board will invite you to edge even more so the problem could also be exacerbated.
I recomend getting a longer mast.
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papasmerf
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Re: foil cavitating, ventilating, broaching, solution

Postby papasmerf » Thu Sep 24, 2020 6:32 pm

Jyoder wrote:
Thu Sep 24, 2020 5:35 pm
1. More time and practice will help learn the limits of your setup and get the most out of it.
2. A longer mast could help but downside is cost $ and less maneuverability.
3. A narrower board could help, but downside is cost $$ and maybe harder water start and different feel.

I have done all three and it suits my powered style of riding well. Most important is #1.
would anyone chime in on how approximately much less maneuverable a 90-95 cm mast is than an 85cm?

tkaraszewski
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Re: foil cavitating, ventilating, broaching, solution

Postby tkaraszewski » Thu Sep 24, 2020 6:56 pm

papasmerf wrote:
Thu Sep 24, 2020 6:32 pm
Jyoder wrote:
Thu Sep 24, 2020 5:35 pm
1. More time and practice will help learn the limits of your setup and get the most out of it.
2. A longer mast could help but downside is cost $ and less maneuverability.
3. A narrower board could help, but downside is cost $$ and maybe harder water start and different feel.

I have done all three and it suits my powered style of riding well. Most important is #1.
would anyone chime in on how approximately much less maneuverable a 90-95 cm mast is than an 85cm?
((avg(90,95) / 85) - 1 = 8.8%.

Note: this number means nothing. Even if I did, what would "8.8% less maneuverable" mean to you?
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jumptheshark
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Re: foil cavitating, ventilating, broaching, solution

Postby jumptheshark » Thu Sep 24, 2020 7:07 pm

Learned on 91 and cut down to 81. Much happier, but I also am pretty happy to ride low. I pretty much always conform my riding to the surface more than other foilers I see. I very much play with depth by exagerating the dop in nose dive or vice versa carving "the lip". I go from deep up to the point of intentional tip venting in the pivot.

Slow down just a tiny bit and still carve really hard and your venting issues will cease.
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papasmerf
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Re: foil cavitating, ventilating, broaching, solution

Postby papasmerf » Thu Sep 24, 2020 7:18 pm

tkaraszewski wrote:
Thu Sep 24, 2020 6:56 pm
papasmerf wrote:
Thu Sep 24, 2020 6:32 pm
Jyoder wrote:
Thu Sep 24, 2020 5:35 pm
1. More time and practice will help learn the limits of your setup and get the most out of it.
2. A longer mast could help but downside is cost $ and less maneuverability.
3. A narrower board could help, but downside is cost $$ and maybe harder water start and different feel.

I have done all three and it suits my powered style of riding well. Most important is #1.
would anyone chime in on how approximately much less maneuverable a 90-95 cm mast is than an 85cm?
((avg(90,95) / 85) - 1 = 8.8%.

Note: this number means nothing. Even if I did, what would "8.8% less maneuverable" mean to you?
just looking for perceptions and overall experiences with switching mast sizes from people who have tried it, whether it helped or not,, that type of thing. it's no big deal, just wondering

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Re: foil cavitating, ventilating, broaching, solution

Postby PurdyKiter » Thu Sep 24, 2020 8:00 pm

I went the opposite direction of jumptheshark. I was on a 91 and now for over a year I'm on my 101.
My primary reason is that I'm on a front wing (Stringy) that will NOT survive any broaching/cavitation without a painful face-plant. When I was on the Moses 633 I could hear a gurgling and make corrections prior to crashing. Now on the 101 I'll go weeks without this problem.
I know there's some trade-off but to me the 101 is a joy.
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TomW
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Re: foil cavitating, ventilating, broaching, solution

Postby TomW » Thu Sep 24, 2020 8:15 pm

I was riding a 91 for several years and after a bunch of hesitation, i got a 100. Its big improvement. Especially what you say, carves, waves, playing with altitude. I dont notice any negatives.
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Windigo1
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Re: foil cavitating, ventilating, broaching, solution

Postby Windigo1 » Thu Sep 24, 2020 9:04 pm

papasmerf wrote:
Thu Sep 24, 2020 6:32 pm
Jyoder wrote:
Thu Sep 24, 2020 5:35 pm
1. More time and practice will help learn the limits of your setup and get the most out of it.
2. A longer mast could help but downside is cost $ and less maneuverability.
3. A narrower board could help, but downside is cost $$ and maybe harder water start and different feel.

I have done all three and it suits my powered style of riding well. Most important is #1.
would anyone chime in on how approximately much less maneuverable a 90-95 cm mast is than an 85cm?
You won't see much difference in terms of how hard it is to ride. It will help with cavitation and in large chop or waves. If you ride with the wave a short mast is good but if you want to go fast through the chop a longuer mast helps a lot.
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