Thanks Kevin
Pat
  ----- Original Message ----- 
  From: Kevin Morton 
  To: [email protected] 
  Sent: Sunday, August 10, 2008 1:43 PM
  Subject: Re: catalina27-talk: Hull speed


        Technically speaking, hull speed is a function of the hull ONLY, it's 
nothing to do with engine or prop. The formula is to take the square root of 
the hull's length at waterline (in feet) and multiply this by 1.34. Thus a 
Catalina 27 with a LWL of 21.75 ft has a hull speed o 6.2 kts. Go to 
catalinaowners.com and there is some good information there. Also, may I 
suggest Yahoo's sailing online forum? It's more general in nature, but a WEALTH 
of qualiy information. Good luck!

        Kevin M. Morton

        S/V Serenity #1920
        _/)_

        --- On Sun, 8/10/08, Patrick R Ford <[EMAIL PROTECTED]> wrote:

          From: Patrick R Ford <[EMAIL PROTECTED]>
          Subject: catalina27-talk: Hull speed
          To: "IC27A" <[email protected]>
          Date: Sunday, August 10, 2008, 11:29 AM


Hi Listers,
I was told there is a way to calculate hull speed for a given boat.
My C27 has a Petter 6 hp diesel--length at waterline is 21ft 9in--std keel--
displacement 6850lbs--LO 26ft 10in--beam 8ft 10in.
Supposedly there is a formula to calculate --2800 rpm or 3000rpm with a 12 X 
7 prop.
???? Anyone know how or where I can find it ???
Pat Ford
Seabiscuit
Port Washington, WI

 

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