Author Topic: Max wave size for foils?  (Read 5807 times)

surfcowboy

  • Cortez Bank Status
  • *****
  • Posts: 4929
    • View Profile
Re: Max wave size for foils?
« Reply #15 on: October 26, 2017, 08:56:16 PM »
Shame they are only good for small waves.

There's really no rule book, that's the thing I'm seeing daily with you guys foiling. Every time something is stated as absolute fact, someone blows it away. It's cool to watch this grow. 

SURFFOILS

  • Rincon Status
  • ***
  • Posts: 205
    • View Profile
    • Email
Re: Max wave size for foils?
« Reply #16 on: October 27, 2017, 03:25:25 AM »
As Beasho said speed is the issue and increasingly smaller foils are capable of higher speeds, once you’ve got the speed ,control is the issue and for larger waves it could involve a setup with an overal length of several feet. Even a short mast foil set at nose and tail of the board.
Everythings possible with an open mind.

Dwight (DW)

  • Cortez Bank Status
  • *****
  • Posts: 4780
    • View Profile
    • supSURFmachines
Re: Max wave size for foils?
« Reply #17 on: October 27, 2017, 04:14:38 AM »
Guys don’t use surf foils in fast waves. I was told Kai uses kite wing. Heck, even here in Florida, guys use kite wings in waves of any power.

SURFFOILS

  • Rincon Status
  • ***
  • Posts: 205
    • View Profile
    • Email
Re: Max wave size for foils?
« Reply #18 on: October 28, 2017, 02:46:43 AM »
That’s the thing about the highly foiled and cambered foil, they give excellent lift in low lift situations but as the power of the wave increases it’s not important to look for speed but for control.
 Better control at speed comes from Less area, a flatter foil, increase the chord for pitch stability by combining front and rear foil into one design.
 Laird has half the equation because he used the tow in boating foil that’s a foiled but flat aluminium design. You notice that despite his speed he carefully watched his AOA.

Piros

  • Sunset Status
  • ****
  • Posts: 464
    • View Profile
    • www.vonpiros.com
    • Email
Re: Max wave size for foils?
« Reply #19 on: October 29, 2017, 12:59:56 AM »
This pic of Kai is a really good example of what happens at speed , look how high the foil is and the way he is pushing his knees forward to keep the foil down , it's incedibly hard to shift the front foot. The faster you go you keep creating lift , that's the problem. The other issue is wind any offshore breeze jacks the board adding to the problem so the board has to be small to reduce this effect. We were maxing out on the Gofoil & Naish at 20 mph on larger waves but now holding 30 mph. We simply got better at riding them. Flatter low aspect foils have their advantage but when you crack the surface they slam hard , the bigger curved wings can be held near the surface gurgling and suppress the touchdown pressure, keeping you on your feet.

It's way too early to put a maximum speed on foils yet as riders ability just keeps progressing and so do the foils and boards. IMHO 50 mph is just around the corner.....
Von Piros Productions
Land Behind, Fish Below, Stories Ahead

southwesterly

  • Cortez Bank Status
  • *****
  • Posts: 2679
    • View Profile
Re: Max wave size for foils?
« Reply #20 on: October 29, 2017, 12:42:50 PM »
This pic of Kai is a really good example of what happens at speed , look how high the foil is and the way he is pushing his knees forward to keep the foil down , it's incedibly hard to shift the front foot. The faster you go you keep creating lift , that's the problem. The other issue is wind any offshore breeze jacks the board adding to the problem so the board has to be small to reduce this effect. We were maxing out on the Gofoil & Naish at 20 mph on larger waves but now holding 30 mph. We simply got better at riding them. Flatter low aspect foils have their advantage but when you crack the surface they slam hard , the bigger curved wings can be held near the surface gurgling and suppress the touchdown pressure, keeping you on your feet.

It's way too early to put a maximum speed on foils yet as riders ability just keeps progressing and so do the foils and boards. IMHO 50 mph is just around the corner.....


Looks like Kai is on his go-to 3'8".

Sam the Surfer

  • Rincon Status
  • ***
  • Posts: 185
    • View Profile
    • Email
Re: Max wave size for foils?
« Reply #21 on: October 30, 2017, 09:09:52 PM »
This pic of Kai is a really good example of what happens at speed , look how high the foil is and the way he is pushing his knees forward to keep the foil down , it's incedibly hard to shift the front foot. The faster you go you keep creating lift , that's the problem. The other issue is wind any offshore breeze jacks the board adding to the problem so the board has to be small to reduce this effect. We were maxing out on the Gofoil & Naish at 20 mph on larger waves but now holding 30 mph. We simply got better at riding them. Flatter low aspect foils have their advantage but when you crack the surface they slam hard , the bigger curved wings can be held near the surface gurgling and suppress the touchdown pressure, keeping you on your feet.

It's way too early to put a maximum speed on foils yet as riders ability just keeps progressing and so do the foils and boards. IMHO 50 mph is just around the corner.....

Good point. Rush Randle and Laird were using sit-down hydrofoil set-ups from Sky Ski on a wakeboard with snow board bindings and getting towed in. We push the mid-30 mph's on these set ups (sit down) when cutting across the wake etc. Guys have gone 50+ behind a sea plane- point is, the wings are thin and ready to go!

Interestingly enough, currently working with Dave Daum in making a set-up to river foil surf at 3-5 mph's. The key here is to keep charging on both ends of the spectrum!!

 


SimplePortal 2.3.7 © 2008-2024, SimplePortal