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From: Lee haefele (no email)
Date: Thu Jul 14 2005 - 09:07:34 EDT
Yes, the energy used to spin the wind gen is lost from forward motion. It would seem that this would be most noticed close hauled and least noticed running near hull speed where hull drag will be a bigger percentage of the total energy. Now, is this 2kts or .2kts lost??
I agree that downwind would be a speed gain, but, I doubt that you will get much usable electric power then.
Lee Haefele
----- Original Message -----
From: Harold G Davies
To:
Sent: Thursday, July 14, 2005 5:15 AM
Subject: [world-cruising] Re: power curve of car alternators
Eric,
You state that a wind gen doesn't induce drag while running. I
would think that when sailing close-hauled, a wind gen does induce
drag, even when running, as every appendage on the boat does except
the sails. When sailing downwind, I suppose it actually assists.
Where am I going wrong?
Harold
[Non-text portions of this message have been removed]
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