Join Date: Feb 2010
Location: Narragansett Bay
Thanked 550 Times in 527 Posts
Rep Power: 11
Re: GPS determined speed
I'm not following how one trims by boat speed. Seems SOG and STW are both after effects of proper trim. I find them both important to know, for different reasons. 0.1kt is close enough.
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In the harsh marine environment, something is always in need of repair. Margaritas fix everything.