Wayne.B wrote:
Anyone here have any experience with roll stabilization tanks -
designing, building, tuning, etc. ?

I'm talking about passive roll stabilization using port and starboard
water tanks connected by a "slosh" tunnel. If sized properly the
water sloshing between the tanks will be out of phase with the roll
period and dampen the motion, even at anchor.

The "slosh" tunnel would need to be as big as the tanks, diameter-wise, and
a huge amount of water would be needed to have any effect whatsoever. If you
don't believe me. take an overweight friend sailing and get him to lose
weight by leaping from side to side in phase with the roll, always moving to
the "up" side. He/she would need to weigh in at around 500lbs if you can
find such a person.

If this system worked the QM2 would use it instead of spending $millions on
stabilisiers.

DP