whistling TT ?!

[zlatko23]

I am riding 2021 Crazy Fly Raptor LTD(carbon fins) and don't hear any whistling sound. My previous board was Raptor LTD 2013 with Razor fins and no "nano glide skin" and I can say both are similar as a "sound profile"

[Pitu]

My money is on the fins. A mate sheared off one of his fins a while ago, so I gave him one of my old CF fins. Sure enough, his board started whistling like a songbird.

[knyfe]

I have an older CF board - mon whistling. No I idea how the short tt fins should even whistle. Love to see a video.

[pj sofine]

Is it random or is it whistling a tune ?

[badgb21]

Years back In windsurfing it was often caused by the back of the fin being too sharp.
Taking some sandpaper to it did the trick.

[downunder]

I got the vid, but wind was really pumping and can hear only that. Blo.dy mobile phones, so hard to operate with one hand...

Yes, red plastic fins are the issue. Super noisy on low speed and medium wind.