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Real speed of a yacht

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Real speed of a yacht

Postby moonmaid » Sat Dec 27, 2014 8:14 pm

Hello everyone :) and happy holiday season wishes to all.

I've been checking out the Rolex 'Sydney to Hobart' race and couldn't be bothered trying to sort out what this means.

The speed of the yacht on the end of the row and the SOG (speed over ground). I think it involves currents somehow, something to do with how the word 'knots' came about by chucking a knotted rope overboard or letting it out to see how far a vessel had travelled in a certain time.

My brain can't handle it today. I have too many annoying fiddly things in my head. Any simple explanations?

http://www.rolexsydneyhobart.com/standings/

I don't know if I also want to know about DTG and how/why it is different to a bearing or course.

thanks
MM
moonmaid
 
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Re: Real speed of a yacht

Postby moonmaid » Sat Dec 27, 2014 9:13 pm

at the end bit I put DTG (Distance to Go, in nautical miles) which is easily understood.

I meant COG (Course of Ground) and how if differs from a bearing or course.
moonmaid
 
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