Not LOA, but rather WLL upon which the formula works. "Hull Speed" calculation is same for nearly any style hull design. In that, Hull Speed represents pre planning attitude of a hull staying parallel to water surface while it "slips" through the water. Soon as the power becomes sufficient to begin to change its attitude by raising the bow and droping the stern of any hull it has then exceeded its Hull Speed. Most efficient speed for best GPM is normally 5% less than calced Hull Speed.
-----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of ferari Sent: Sunday, September 23, 2012 8:12 PM To: UnifliteWorld Subject: [UnifliteWorld] Re: Planing speed/rpm George, I'm not aware of any other formula for hull speed than the one that is used. In trying to look deeper into your question, I looked at a few places and the most logic one I kept coming to was the formula 'we' use for hull speed. I don't know that it matters whether it's 'planing' or displacement.' It is based on your LOA. http://en.wikipedia.org/wiki/Hull_speed On Sep 21, 2:34 pm, Georgeviking <[email protected]> wrote: > Curious??? How are you guys determining hull speed??? We all have planning hulls so the calculation used on a displacment hull does not apply. > Is there a formula for planning hulls??? -- You received this message because you are subscribed to the Google Groups "UnifliteWorld" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/unifliteworld?hl=en. -- You received this message because you are subscribed to the Google Groups "UnifliteWorld" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/unifliteworld?hl=en.
