Join Date: May 2005
Thanked 30 Times in 29 Posts
Rep Power: 12
Re: Whats the reason for the huge differences in displacements in similar sized boats
The C34 will be a faster, possibly stiffer boat than the PSC 34. One the ballast disp is almost 10% more, ie 35% vs 45 for that Cat. Disp to the length is lower for the Cat, Sa to disp is around 15-1 for the PSC, and close to 17-1 for the Cat. These last figures in car speak, would be HP/lb of car wt! Hence why from a phrf rating standpoint, the catalina is around 150, the PSC 195. As a comparison, here is a link to my boat, which depending upon the where it is sailed, phrf ranges from 165 to 192. Using the link I found the above ratings for the PSC and Cat, it is 159. So dang near on par with the cat, but I am 6' shorter, and half the wt of the psc!
I will admit, the scantlings, ie build of the psc is heavier, potentially stronger than a catalina, or my Jeanneau for that matter. BUT< all three have crossed oceans!
She drives me boat,
I drives me dinghy!