Limit of Positive Stability

[Stillraining]

I need to know my LOPS for PIYA certification Purposes...How do you calculate it or where can you find I list online that may have my boat listed.

It's an Irwin 41 CC Ketch so no I cant ask the manufacture..and yes I do have the question in to the Irwin owners home page..but no takers yet.

[Stillraining]

Never Mind...I found it... 131.42 degrees

[johnshasteen]

It's also know as the Angle of Vanishing Stability - here's a link to calculate yours if you want to double check, it's from US Sailing.
Angle of Vanishing Stability

[tweitz]

I would be reluctant to rely on the calculator for the angle of vanishing stability. They admit it is an estimate, and there are many variables the formula does not include.