Thorough Article is attached. Download and read!
Here is an excerpt from the introduction:
The Big Picture
In the big picture view there are three areas of concern to identify a seaworthy hull:
1 Hull Structure. Is the boat strong enough?
2 Stability. Is the boat stable enough? Does it have enough righting moment to recover from a severe knockdown?
3 Attachments and penetrations. Are all the fittings, joints, through hulls and openings properly mounted and sealed?