Expedition Expedition Navigation Software

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3/11/2018 1:24 pm  #1


Waves Correction Table

Optimization Settings provides the option to use the "Waves Correction Table" to adjust Polars for wave height and swell direction when such data is available from Grieb files.  Does anyone have any experience using this feature, or know how to create, load and edit Expedition's Waves Correction Table.

 

3/11/2018 3:27 pm  #2


Re: Waves Correction Table

There is a waves button on the optimal panel.

They are bsp % values. The axes are angle to the boat and wave height in metres.

​It uses the significant wave height and primary swell direction if available. The local wind wave effects should really be covered in your rough water polar.

There is a little in the help about it, but this is really all it is.

 

3/12/2018 8:25 am  #3


Re: Waves Correction Table

Thanks Nick; most helpful.

     Thread Starter
 

4/01/2018 8:51 pm  #4


Re: Waves Correction Table

LarryJFoxRhino, do you have some wave polars you can share?

 

4/02/2018 6:11 am  #5


Re: Waves Correction Table

Regretably, we do not yet have sound rough water polars or a wave correction table.  Works in progress.

     Thread Starter
 

4/02/2018 8:03 am  #6


Re: Waves Correction Table

Anything you can share that we can use as a starting point would be great, can do some real life testing in a couple of weeks.

 

4/02/2018 11:50 am  #7


Re: Waves Correction Table

Waiting to get the boat back from Australia so we can get to work on this.  Put a new keel on LY (reduced weight, more efficient fin with shorter cord length, deeper draft) so we are pretty far back in the process.

     Thread Starter
 

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