[Rhodes22-list] Test (Excel Spreadsheet)

[Leland]

Bud,

I found a variety of speed calculators, but the only ones I could find that
used LWL were for maximal hull speed, which is 5.99 knots for our boat.

All other calculators for speed for different points-of-sail didn't consider
the size of the boat.

Lee


Bud_On_Rhodes wrote:
> 
> Lee,
>   there is software out in the public domain for computing hull speeds. 
>  You input a variety of parameters and
> will get a first cut/baseline of what a Rhodes should achieve.
> 
> -Bud
> 
> Leland wrote:
> 
>>Oops--assumed it wouldn't work.  Guess I'd better explain a little.
>>
>>First of all, the boat speed spreadsheet for the Rhodes is not accurate
for
>>a multitude of reasons.
>>
>>The data for the Beneteau46 is from their website.  Since its LWL is 40'8,
>>its speed should generally be about twice that of a Rhodes.  I divided the
>>Beneteau data in two and discovered that one of the biggest discrepancies
is
>>that the Rhodes performs much better in light air and therefore reaches
its
>>maximal speed much quicker.  I couldn't figure out an easy way to
compensate
>>so I simply changed the wind speed to increments of two instead of four. 
>>Hey--I said it was inaccurate.
>>
>>The Rhodes will still reach its maximal speed sooner than the spreadsheet
>>depicts, but I did notice that the data looks somewhat more accurate as
you
>>decrease wind speed.
>>
>>Does anyone know of an easy and more accurate method of predicting our
>>speeds?  I understand that there are too many variables to be too
accurate.
>>
>>Thanks!
>>
>>Lee
>>
>>
>>
>>Bud_On_Rhodes wrote:
>>  
>>
>>>Lee,
>>>  I can read your uploaded xls just fine.
>>>
>>>-Bud
>>>
>>>Leland wrote:
>>>
>>>    
>>>
>>>>Just testing to see if I can upload an Excel spreadsheet.
>>>>
>>>>Lee
>>>>1986 Rhodes22
>>>>Crab Alley (Kent Island, MD)
>>>>
>>>>
>>>>http://www.nabble.com/file/p12636553/Speed%2BCalculations.xls
>>>>Speed+Calculations.xls 
>>>> 
>>>>
>>>>      
>>>>
>>>__________________________________________________
>>>Use Rhodes22-list at rhodes22.org, Help? www.rhodes22.org/list
>>>
>>>
>>>    
>>>
>>
>>  
>>
> 
> __________________________________________________
> Use Rhodes22-list at rhodes22.org, Help? www.rhodes22.org/list
> 
> 

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