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Board » Technical Support » Going in the reverse direction?

Posted by
Ketch


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2009-10-10 16:57:03
2010-05-01 06:54:41 - Going in the reverse direction?
In the Figaro Transit currently running - I noticed my place had dropped overnight quite dramtically (should have set a CC I thought and OK another major blunder in my course setting - so whats new!). Then I realised I was going backwards at a speed of about .5 knots in exactly the opp direction to the one I had set.

How do I know I didn't set an incorrect course - well its still showing in my course to steer box!

So is this a bug in the system - how is it possible that I am moving in the other direction to the one indicated?

Best wishes

Robert
Posted by
Incognito


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2008-12-06 13:43:52
2010-05-01 07:04:36 - Re: Going in the reverse direction?
Mmmm strange. Could you take a screen shot? Looking at your track, it does not look really abnormal.

Francois
Posted by
Ketch


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2009-10-10 16:57:03
2010-05-01 14:33:49 - Re: Going in the reverse direction?
Hi Incognito

Thanks for getting back - if you track back 46.2 nm's on my current track you will see a weird kink in my course tracker (you do need to zoom in)- this was for a period of I recon three to four hours taking me almost straight head to wind.

No instruction was issued for this indeed quite the oposite.

Best wishes

Robert
Posted by
Mulligan2


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2009-03-31 04:53:50
2010-05-01 16:06:36 - Re: Going in the reverse direction?
i have seen instances of multiple DC's set to fire at the some time that cause TWA=0 responses...

I can replicate (on occasion and always while racing in a top20) interactively,
"They won't play if they can't win" - Walt Disney
Posted by
kalle


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2007-06-01 09:58:04
2010-05-01 16:11:07 - Re: Going in the reverse direction?
In some polars you can go reverse if using a twa *almost* equal to zero, this is because of the spline interpolation.

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