Quote:
Originally Posted by vdr1981
Does Hintere Luftkammer have any sense at all? Do you know some other , more technical term?
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"Luftkammer" doesn't make sense, because the tank can hold air or water. You could use "vorderer / achterer Ausgleichstank" or "vordere / achtere Ausgleichszelle" a generic term, that at least reflects the functionality of the compartment.
Quote:
Originally Posted by vdr1981
Check out this video (06:15)...It's american sub but principle is surly the same same...
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OK, but this buoyancy tank is emptied actively to facilitate dynamic depth reduction (get the bow up).
Quote:
Originally Posted by vdr1981
This is from Type VIIC manual...
Stern and bow buoyancy tanks.
The aft and forward parts of outer shell are constructed as stern and bow buoyancy tanks and are used to dampen longitudinal pitching of the boat. Both tanks have flood slits and one vent valve each.
Page 38
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This really makes my brain ache
: A open system with slits near the bottom of the compartment with a pressure excess valve and a vacuum valve near the top would be useful to "dampen longitudinal pitching": Intake of water when the slits are beneath the surface -> increase of mass before the next upward movement. Loss of water, when the slits are above the surface -> decrease of mass before the next downward movement. But a tank with slits and a vent valve??? Nah, I give up
