English to Italian Other Ships, Sailing, Maritime

Will we stay afloat?
If the buoyancy tanks are OK she'll float.

Per buoyancy tank ho travato la seguente definizione:

The Bow Buoyancy Tank is a free-flooding vent-controlled tank with its main volume above the normal surface waterline. It is located in the extreme bow of the vessel and is formed of the plating of the superstructure. Its function is to provide reserve surface buoyancy, emergency positive buoyancy in the submerged condition, and to aid in surfacing.

Su Google ho trovato "cassa di spinta" e "cassa di galleggiamento", ma non sono convinta.