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The capsize screen ratio tells you absolutely nothing about the stability of a Catalina 22. I know that I have explained this on this board many times before but here it is again. You hear a lot of talk about the capsize screen ratio and Motion Comfort Index but neither the capsize screen ratio and Motion Comfort Index provide any useful information about stability or motion comfort. Both of these surrogate formulas were developed at a time when boats were a lot more similar to each other than they are today. These formulas have limited utility except in comparing boats that in almost all ways are very similar. Neither formula contains almost any of the real factors that control motion comfort or seaworthiness. Neither formula contains such factors as the vertical center of gravity or bouyancy, neither contains weight or buoyancy distribution, and neither contains any data on dampening which collectively really are the major factors that control motion comfort or likelihood of capsize.
I typically give this example to explain just how useless and dangerously misleading these formulas can be. If we had two boats that were virtually identical except that one had a 1000 pound weight at the top of the mast. (Yes, I know that no one would install a 1000 lb weight at the top of the mast.) The boat with the weight up its mast would appear to be less prone to capsize under the capsize screen formula, and would appear to be more comfortable under the Motion Comfort ratio. Nothing would be further than the truth. That is why I see these formulas as being worse than useless, especially so in your case where you are dealing with a moderately heavy 22 footer with minimal stability.
Respectfully,
Jeff
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