Quote:
Originally Posted by Sailor Steve
That leaves me confused. How flooded are the ballast tanks? Fully flooded, and the boat dives. Partly flooded makes sense, but as I asked before, how precisely is the flooding controlled if the only way to flood is to open the vents? The boat can only be precisely trimmed if it is submerged.
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From the theory of submarines...
There are 3 groups of the main ballast tanks: aft, stern, middle.
All the main ballast groups are flooded (blowed) completely, thus reducing (restoring) submarine buyoancy to about zero.
For exact buyoancy and trim adjusting there are 3 trim tanks: aft, stern, middle. Aft and stern tanks are used for trim adjusting, middle one - for exact buyoancy adjusting. Flooding of trim tanks is controlled precisely.
The "fast-dive" tank is used during the dive to decrease submarine buyoancy below zero (flooded/blowed completely and rather fast), thus speeding up the submarine diving and leaving water surface. Right after the sub leaving the surface, "fast-dive" tank is blowed, restoring buyoancy of the sub to about zero (otherwise the sub will sink).
AFAIK the "fast-dive" tank had been implemented from XXI project only.
I'm rather clever boy, am i not?