[Capri25] Capri 25 - Keel flexing?

[Odell Tuttle]

In last night's heavy air race, I felt something very strange on the
downwind runs.  In addition to the typical "hum" that you get at hull speed,
I also felt a much lower-frequency (~ 1hz) harmonic vibration.  It seemed
like it had much more energy than the typical hum - the whole boat shuttered
on each oscillation.  I really think my keel was "waving" back and forth
under all that water pressure.

Is this possible?  If so, it doesn't sound very good.  Any suggestions?

Thanks,
OT



Odell Tuttle
Chief Technology Officer
Healthland
1550 Utica Avenue South; Suite 945
Minneapolis, MN 55416
651.925.7728
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