How can I compare ships in different sizes?

If I want to compare a 25ft boat with comfort ratio 30, with a 50tf boat with comfor ratio 30. I Would belive the 50ft to be more comfortable, but is there a way to do the math?

Hello jme, The the comfort ratio equation is: D ÷ (.65 x (.7 LWL + .3 LOA) x Beam↑1.33), where displacement is expressed in pounds, and length is expressed in feet.

This equation is designed as an indication of how quickly a boat will react to waves. There are not a lot of 50 footers with a CR as low as 30 and not a lot of 25 footers with a CR as high as 30, although both exist.

If you want, use refine search on to find them. You can also try using the Compare tool on the site to see up to three boats at once. In Compare, use refine search to narrow your results, then Sort by LOA and finally select the boats to compare.

Hope this helps.