Quote Originally Posted by epiphany View Post
Ay, and for beer and/or rum, too!
Nope, they float by them selves!

In fact, they will likely float away......

And, since it is rare to have a full bottle of liquor on any sailboat (based on my extensive crewing on other people's boats), you could statistically figure out how empty your collection of hooch is likley to be, and count on the air in the bottles as flotation, in addition to your foam.

And I just thought of this, if you are basically lining the inside of the whole hull with foam, when you are done, you should glass it all in. This way you will not only have flotation, but a double hull (ala freighters and russian submarines....)