[PSUBS-MAILIST] Free surface

[pierre&marie <poulin.carrier@videotron.ca>]

Hi!

What do you suggest to resolve the free surface problem in a MBT? You know,
the water moving in a half full ballast and then changing the center of
gravity of the sub and tilt it nose down or tail down?

I must place those ballast horizontaly.

I'm thinking that if the weight of the keel multiplied by the distance from
the center of gravity of the sub if bigger then the weight or the water in
the ballast multiplied by the distance from the center of gravity of the
sub, then the keel will always keep the sub in the good position. The weight
of the water in the ballasts won't be enough to tip the sub.

What do you think?

 Pierre Poulin