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| Re: Rudder Hum/board Hum
[Re: PTP]
#224567 11/23/10 10:43 AM 11/23/10 10:43 AM |
Joined: Feb 2005 Posts: 1,382 Essex, UK Jalani
veteran
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veteran
Joined: Feb 2005
Posts: 1,382 Essex, UK | I don't know about a discussion thread but essentially all you do is bevel the inside trailing edge of each blade at 45 degrees...
John Alani ___________ Stealth F16s GBR527 and GBR538 | | | Re: Rudder Hum/board Hum
[Re: Jalani]
#224570 11/23/10 11:33 AM 11/23/10 11:33 AM |
Joined: Dec 2001 Posts: 5,590 Naples, FL waterbug_wpb
Carpal Tunnel
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Carpal Tunnel
Joined: Dec 2001
Posts: 5,590 Naples, FL | I believe the current thought is to make the trailing edge asymmetric to reduce the hum. So angle one side of the trailing edge at a slightly different angle than the other and you should be okay...
Jay
| | | Re: Rudder Hum/board Hum
[Re: waterbug_wpb]
#224575 11/23/10 12:41 PM 11/23/10 12:41 PM |
Joined: Jul 2005 Posts: 267 Ocean Springs, MS Capt_Cardiac
enthusiast
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enthusiast
Joined: Jul 2005
Posts: 267 Ocean Springs, MS | I find my random sawtooth pattern on the back of all my boards eliminates all humming very effectively.
Capt Cardiac Ocean Springs Yacht Club Sailor Nacra20 - Flight of Ideas #5 | | | Re: Rudder Hum/board Hum
[Re: Capt_Cardiac]
#224580 11/23/10 03:49 PM 11/23/10 03:49 PM | Scarecrow
Unregistered
| Scarecrow
Unregistered | AHPC has the diagram you're looking for in the Viper tuning guide. The point behind the procedure is to make your rudders very slightly asymmetric. | | |
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