Hello Folks,
I have a quick question. We had our 1984 Mac 25 out yesterday for our first real sail in strong winds (15 to 20 knots) here on Lake Ontario off Kingston. It was a blast but we noticed that there was a very audible humming emanating from the keel area. Kind of spooky. We hadn't noticed this before, but then we've never had her up to this kind of speed either. I assume it has to do with the keel cable becoming harmonic. We just want to be sure that nothing is out of order. Is this normal?
Thanks
Keel Humming
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chefmike
- Deckhand
- Posts: 42
- Joined: Wed Jan 06, 2010 7:39 am
- Sailboat: Venture 2-24
- Location: Lindale TX
Re: Keel Humming
Very normal. You can let out a little more cable so the tautness is gone and the hum will disipate, but I keep mine a little tight. I use the change in audible pitch to gauge my speed.
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beene
- Site Admin
- Posts: 2546
- Joined: Tue Sep 19, 2006 5:31 pm
- Sailboat: MacGregor 26M
- Location: Ontario Canada, '07 26M, Merc 75 4s PEGASUS
Re: Keel Humming
HmmmCatigale wrote:Most every boat Ive ever sailed lets off a song once you get her moving....
Why do I feel as though I have said that before, except not about boats......
G
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baldbaby2000
- Admiral
- Posts: 1382
- Joined: Sun Mar 28, 2004 8:41 am
- Location: Rapid City, SD, 2005 26M, 40hp Tohatsu
- Contact:
Re: Keel Humming
Both our Mac 25s did that. You can loosen or tighten the keel winch to stop it but I don't mind getting a nice butt-buzz when we're going fast.