Tyler Warren talks through creating the Modern Keel template blending a keel with a modern tri fin

[@tobyneo10101]

Love modern keel fins they are the best feeling fins in more boards then just fish designs. I think a lot of us surfers get stuck in our own ways and need to experiment more with fins and equipment and be surprised how some things that don’t look right sometimes end up working the best.

[@matthewwillis4892]

That modern keel fin has been around for fifty years or so

[@kyledexheimer6548]

Fins are likely not cavitating, which is the creation of bubbles along the fin surface as the pressure is so low from the amount of lift the water boils. They are stalling which is when they stop generating lift because the angle of attack is too high.

[@IplaygameS2.0252]

True, how is is fin not cavitationing but still making a whistle sound🔊when in barr3l

[@kyledexheimer6548]

@@IplaygameS2.0252 that is caused by imperfections on the trailing edge of the fin. The faster you go the more likely it is going to cause the fin to vibrate and make noise. It is an easy fix with a piece of sandpaper.

[@IplaygameS2.0252]

@@kyledexheimer6548 how many surfboard vents do I need on my eps surfboard to leave it in my car all day in summer? And why don't polyester boards have vents if they have been known to delam from hot cars too?