[Rhodes22-list] Rhodes22 Stats

[Mary Lou Troy]

It would be interesting to know what numbers were 
plugged in to the formulas. I suspect you should 
use length at the waterline AND beam at the 
waterline to make the ratios for the R22 
comparable to other boats. And of course then you 
have to decide what number you use for 
displacement. I'm pretty sure he used the 
waterline length because of the hull speed 
number. There are calculators out on the internet 
that would let you play around with the rest.

Mary Lou
1991 R22 Fretless
Rock Hall, MD

At 05:32 PM 1/24/2007, you wrote:

>Here's something I haven't seen before.  It was posted 9-1-06 by a guy from
>Pontevedra, Spain on the Boat Design Forum of Boatdesign.net:
>
>Using numbers at http://www.rhodes22.com/spec.html , I get for the Rhodes
>22:
>
>Length/Beam ratio (Lfl+Lh)/2B = 2,63
>Ballast/Disp Ratio Ball/Disp = 0,24
>Displacement/Length Ratio D/L = 161,47
>Sail Area/Disp. Ratio SA/D = 16,52
>Power/ Disp. Ratio HP/D = 6,9 HP/ton
>Hull speed HSPD = 5,99 Kn
>Potential Maximum Speed PMS = 6,8 Kn
>Velocity Ratio VR = 1,13
>Capsize Safety Factor CSF = 2,25 (OK under 2)
>Motion Comfort Ratio MCR = 13,51
>
>Angle of Vanishing Stability AVS = 114 º
>Heft Ratio HF = 0,64 (OK over 1)
>Roll Period T = 1,4 Sec
>Roll Acceleration Acc = 0,27 G's (Malaise 0.1+)
>Stability Index SI = 0,57 (Comfort: 1 ­ 1,1)
>__________________
>Guillermo Gefaell
>Motorsailers & Motorsailing
>Banjer 37 Motorsailer Club
>
>At this year's Annapolis Boat Show I mistakenly described the Rhodes22's
>stability as "tender."  I was corrected and now describe it as "spirited."
>
>Lee
>1986 Rhodes22  At Ease
>Crab Alley (Kent Island, MD)
>--
>View this message in context: 
>http://www.nabble.com/Rhodes22-Stats-tf3085917.html#a8575086
>Sent from the Rhodes 22 mailing list archive at Nabble.com.
>
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