I have been windsurfing for way over 30 years, and what you have given to us here are really good points! I agree with you that spin-outs: they happen as soon as the nose gets out of the water, exposing the entire bottom of the board almost all the way to the fin (i.e. you hit to a large chop). So, the area of the fin still in contact with water pretty much determines whether you're gonna spin out or not. If you have a small fin your are pretty much out of luck because there is not much fin area in contact with water. In this case, your only remedy is to move the mast base forward to keep the nose down as you pointed out. Larger length fins, on the other hand, have better chance against spin-outs because more fin area stays in contact with water. Spin-outs also take place if the fin loses its laminar water flow across its surface. That means that a large length fin with large chord spins out faster than the same length fin with shorter chord because the laminar flow on the larger chord starts detaching from the fin surface towards the trailing edge and becomes turbulent as the speed increases. Modern fighter jets control turbulence by using very small wing thickness to reduce turbulence and drag if the aircraft needs to be employed with large chord to provide lift.
Yes you are very right longer fins help in that case but what helps too be very responsive with your legs and your backfoot pressure bcs when you hit the chop the fin gets sensitive and when you put too much pressure on it the more you will spin out the same goes for getting planing the slower you are the less pressure you can have one the backfoot and a longer fin can handle more pressure because it generates more lift
He Guy, great video and heaps of usefull intel, how about the flex in wave fins? And does flex in the front fins really make a difference or is that mostly in the backs (i ve a quad)..
Hey Guy, great video and packed with loads on useful information. Thanks! A question for you, the x5 +4 rule do you include the number after the decimal point or only consider the while number part. i.e do I use the same fin for a 5.2m sail as I would for a 5.8m? Keep up the good work! :-)
i have never understood Fins they wind me up, been Foiling last 2 years Windsurfing is now Ultimate Bliss as it takes away my Windsurfing Knitemares La Fin.. Yuk!
Amazing video, every sentence was a great piece of information thank you!!!
I have been windsurfing for way over 30 years, and what you have given to us here are really good points! I agree with you that spin-outs: they happen as soon as the nose gets out of the water, exposing the entire bottom of the board almost all the way to the fin (i.e. you hit to a large chop). So, the area of the fin still in contact with water pretty much determines whether you're gonna spin out or not. If you have a small fin your are pretty much out of luck because there is not much fin area in contact with water. In this case, your only remedy is to move the mast base forward to keep the nose down as you pointed out. Larger length fins, on the other hand, have better chance against spin-outs because more fin area stays in contact with water. Spin-outs also take place if the fin loses its laminar water flow across its surface. That means that a large length fin with large chord spins out faster than the same length fin with shorter chord because the laminar flow on the larger chord starts detaching from the fin surface towards the trailing edge and becomes turbulent as the speed increases. Modern fighter jets control turbulence by using very small wing thickness to reduce turbulence and drag if the aircraft needs to be employed with large chord to provide lift.
Yes you are very right longer fins help in that case but what helps too be very responsive with your legs and your backfoot pressure bcs when you hit the chop the fin gets sensitive and when you put too much pressure on it the more you will spin out the same goes for getting planing the slower you are the less pressure you can have one the backfoot and a longer fin can handle more pressure because it generates more lift
great and useful video. Something about speed sailing and asymmetric fin
He Guy, great video and heaps of usefull intel, how about the flex in wave fins? And does flex in the front fins really make a difference or is that mostly in the backs (i ve a quad)..
very helpful. keep em coming!
Everything I wanted to know about fins. Correct.
The debochiet sl2s still rock!
Great
Hey Guy, great video and packed with loads on useful information. Thanks! A question for you, the x5 +4 rule do you include the number after the decimal point or only consider the while number part. i.e do I use the same fin for a 5.2m sail as I would for a 5.8m?
Keep up the good work! :-)
Any relationship of this kind is most probably "continuous", so yes, use the exact sail size in the rule !
Great details
For weedconditions I use the Tribal weedspeed. Good in releasing weed but also good lift speed and jibing
Why are there no new vids?
Another great video
You missed out position in the fin box.... forward/center/back
:)
Why is in in vertical?
To match the 480 quality :)
Θεός!
Where m/how to chip in some Beer Money for the tons of higly variable Information Guy shares here?
Agree
i have never understood Fins they wind me up, been Foiling last 2 years Windsurfing is now Ultimate Bliss as it takes away my Windsurfing Knitemares La Fin.. Yuk!