It seems that my boom is singing. I don't think it is the rigging. Some sort of weird resonance that builds up. It is quite loud down below. Inside the cabin I can feel the mast vibrating with the "song". I hear it coming out of the aftend of the boom when I am in the cockpit. It is starting to get a bit annoying.I tried moving the boom around a bit did not seem to kill the noise.
I had this but realised it was due to the vang and main sheet being too tight (to stop 'banging and swinging etc) .. I loosened them, the singing stopped..
1+ Loosen the main sheet a bit.
If you look at your topping lift line as the wind blows over it you will see it vibrate or hum like a guitar. Just like a guitar, when you loosen the strings it stops making a sound.
Well one of my "todo's" this trip is to replace the rigid vang. Hopefully the new to me one is big enough (may be 1 size smaller than my current broken one). SOOO I am off to do that now... with the new vang I may not need the topping lift! Wish me luck. As is any slap in place simple easy replacement job, I am sure it will turn into something else entirely. Gotta love boats. =P
well sh!t3!! the new to me vang is indeed 1 size smaller...and with my big heavy boom I am not even going to try it... I will have to buy a new one grrr. Ohh well. BUT it is definitely the topping lift. I put my hand on it and could feel the vibrations. Thanks for the heads up... now to fix it right when I have the $ to spend on the new kit.