Quote:
Originally Posted by Tad Roberts
Every bit of your boat, including the kitchen sink, makes up the boat's "stability design". For instance, your flying bridge hardtop and mast both add to the boat's stability (greater displacement = greater stability), and detract from the boat's stability (by raising the center of gravity).
If your trim ballast is in the bilge, it's probably lowering the center of gravity and thus adding to stability.
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I'm no expert on this, but didn't mean to imply that other things don't impact stability. Everything becomes part of the calculation to some extent or another. My point was just that some ballast gets designed in specifically to impact stability. That's it's role in life. Where trim ballast, though it also affects stability, has a primary purpose of trimming the boat. If placed wisely it can augment stability, and if placed poorly it could detract.
Your lecture isn't available to read by chance? It sounds interesting.