I just went through this on the keys trip. I also get a hummmmming noise. I felt around the boat and it did not seem to be the IMF. I could feel the hum more in the boom, but that wasn;t the source either. It was the boom cord going from between the rear stays all the way to the top. It gets a frequency going. I bungeed the boom cord at the rear to the rear stays and that was all she wrote.
Al:
I get a hummmm... which increases as wind increases... HUMMMM...
Ed K
Greenville, SC, USA
"The latest survey shows that three out of four people make up 75% of the population."
keblinskas Keblinskas wrote:
I keep my '97 Rhodes 22 on the Boca Ciega Bay of St. Petersburg, FL , docked on a lift, with mast
up, at my back yard seawall, on the St. Pete Beach island side of the bay. The dock is fairly well
sheltered around all points,except the North. The periodic winter cold fronts blow in from the North
with 20+ knot gusty wind which produces a horrendous wailing howl in the rigging/mast.
While docked, the boat's stern faces NE ; it seems to me the wailing noise must be caused by the wind entering the IMF's hollow mast groove and then exiting near the top producing the howl, like an organ pipe. I don't think the noise is from the shrouds.
Please let me know if any of you have experienced or heard of someone else running into something
similar, with any IMF system. If so, has anybody come up with a method to mitigate this problem,
other than lowering the mast / derigging or docking the boat so that the stern (and mast groove)
faces to leeward?
Your comments will be very appreciated, so I thank you in advance,
Al Keblinskas
