Keith wrote:

In message , Andy
Champ writes
Pick it up again, and twirl. It'll be a lot easier to twirl now the
mass isn't so far from the CoG.

Things are much more complicated with hulls than masts, but the
principle is there.

This suggests that a hull design that has a greater distance between
CofG and PMofI will be harder to turn quickly - is this correct?

Yes, for the same mass, but it also means that she will carry her
angular momentum better, e.g. will be easier to tack. Once you start
her spinning, she'll be more likely to carry on round and not end up
"in irons".