Ship Design Regarding Ballast.

[daiquiri]

Originally Posted by PAR

Daiquiri, that ship appears to have something wrong with it, as it's listing to starboard and seems to favor a roll to the same side. Maybe some flooded compartments, bad giros, who knows, though she does manage to "get back up".

PAR, you are right - it seems to favor the hell to the starboard. However, it might as well be the result of the combined effect of roll resonance and wind action.
Both wind and waves appear to come from the port side, about 30-40 degrees off the bow. It can be better seen in this video: http://www.youtube.com/watch?v=t_3-R...eature=related - see the direction of the airborne spray.
A strong wind coming from that direction will generate a force on the superstructure pulling it to the starboard side, with a consequent additional heeling moment. Higher the superstructure, more aerodynamic force it will generate. That could explain the asymmetrical rolling, imho.
Cheers!

[jehardiman]

FWIW, for a passanger vessel, the pools are small change when compared to the SOLAS 2 compartment damaged stability requirements. In most designs they are more worried about the water when it is used for fire fighting than when it is in the pools.

So sleep well on board and don't worry about capsize...worry far more about the fires and dying of smoke inhalation....well G'night.

[daiquiri]

Originally Posted by jehardiman

So sleep well on board and don't worry about capsize...worry far more about the fires and dying of smoke inhalation....well G'night.

Thank you for these reassuring words, we feel much better now. G'night.

Here a short clip of a pool in a bit windy condition.
Imagine severe weather! The pool will be empty in a few moments.

http://www.liveleak.com/view?i=3e6_1227459465

enjoy the other vids too! (thanks bearflag for the link)http://www.liveleak.com/view?i=975_1283799588

[daiquiri]

Originally Posted by apex1

enjoy the other vids too! (thanks bearflag for the link)http://www.liveleak.com/view?i=975_1283799588

The second one is even more interesting to me.
Makes me wonder if a forklift being violently thrown against internal walls and columns is considered as a structural load case by current regulations...

[mydauphin]

Originally Posted by jehardiman

So sleep well on board and don't worry about capsize...worry far more about the fires and dying of smoke inhalation....well G'night.

Actually I worry more about the food, water and ventilation system. They seem to be prone to serve as petri dish for viral growths of all kinds.