Thanks for the response, Malcolm, which I'll post. I'm sure Soren will chime in if he has any further questions. --Georgs >To answer Mr. Christensen's question on asymmetrical hulled displacement >power cats. It has been done a few years ago. There was some tank testing >done some 30 years ago and the results were as follows. > >[1] For a very specific speed, and the speed range was very small, there was >a decrease in resistance when compared with a symmetrical hull. > >[2] Outside that very specific speed there was an increase in resistance. > >Of course it all depends on what he means by high speed performance. To >determine the actual speed at which the resistance is lowered requires tank >testing. It is entirely a matter of the water flow around the hulls. > >Regards, > >Malcolm Tennant. > >Malcolm Tennant Multihull Design Ltd >PO Box 60513 Titirangi, >Auckland 1007 >NEW ZEALAND > >ph +64 9 817 1988 >fax +64 9 817 6080 > >e-mail malcolm@tennantdesign.co.nz >www.tennantdesign.co.nz >www.catdesigners.com