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Go Back   SailNet Community > General Interest Forums > General Discussion (sailing related)
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Old 10-16-2008
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Keel hum

I like it. It makes me happy. How about you? Does it happen on your boat? When? What does it sound like?
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Last edited by tenuki; 10-16-2008 at 12:47 AM.
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Old 10-16-2008
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My dad always called it 'aquaman's heel' and said that it attracted the dolphins that always followed us around---I love that sound!
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Old 10-16-2008
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The only time I've heard my keel hum is when the boat is surfing at well over hull speed.

It doesn't make me happy.
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Old 10-16-2008
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Usually means you are going good and fast!

If it happens at lower speeds you may have a problem.

Probably the votices coming off the trailing edge, you can sharpen it up a bit by fairing the trailing edge next time you haul out.

The humming will actually slow you down to a small degree.
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Old 10-16-2008
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On our old Melges 24, the keel would begin to hum quietly around 10/12 knots or so. Up around 16/17 knots it was really screaming! That was always fun (until you'd wipe out in a wild broach!)
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Old 10-16-2008
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I heard it on my old trailerable, Mac 25.

It was a little annoying but it did happen when it was going decently fast.

Thats very fast John, you sure 16/17 knots on a 24'?
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Old 10-16-2008
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Giulietta is just really nice Giulietta is just really nice Giulietta is just really nice Giulietta is just really nice Giulietta is just really nice
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Old 10-16-2008
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Hahaha, nice one G
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Old 10-16-2008
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You can go that fast no problem , i have been over 20 on a J24

BUT you gotta be willing to take the BAD ending of dipping the windex


When a J24 planes the whole boat rises out of the water a good 6" and it feels great until you start running out of rudder and the boat slowly gets sideways and trips on the keel



I am no longer willing to take the bad ending BTW
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If a dirty bottom slows you down what do you think it does to your boat
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Old 10-16-2008
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Giulietta is just really nice Giulietta is just really nice Giulietta is just really nice Giulietta is just really nice Giulietta is just really nice
Quote:
Originally Posted by tommays View Post
You can go that fast no problem , i have been over 20 on a J24
Tom...we measure speed in knots here..not pubic hairs per second...

I have been at 40 once..no ..make it twice..on a DC1200

My brother once caught a salmon..it was 10 feet long...... really....
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