The title "Wir Fahren auf England" is sung by the Teutonic Titwillow Lilly Von Shtup, in "Blazing Saddles". Your signature uses the word "gegen" which means against... Implying a condition of war or strife...
Look for it when Mel Brooks best hits your screen next time... It was a WWI era song...
Thanks for the kind words..
Here is a list of the many tanks aboard a sub... Note the Safety tank
Main ballast tanks - Tanks that are provided primarily to furnish buoyancy when the vessel is in surface condition and that are habitually carried completely filled when the vessel is submerged.
Variable ballast tanks - Ballast tanks that are not habitually carried completely filled when submerged and whose contents may be varied to provide weight compensation are known as variable ballast tanks. These ballast tanks are constructed to withstand full sea pressure.
Negative tank - The Negative Tank is a variable ballast tank providing negative buoyancy and initial down-angle. Submarines normally will operate submerged in neutral buoyancy and without trim when the negative tank is nearly empty. It is used to reduce the time required in submerging from surface condition, to reduce the time required to increase depth while operating submerged, and to prevent broaching when decreasing depth. It may be blown or pumped.
Safety tank - The Safety Tank is a heavily reinforced main ballast tank arranged to permit pumping as well as quick blowing to regain positive buoyancy. Under normal submerged conditions, the blowing or pumping of this tank will bring the conning tower above the surface.
Bow buoyancy tank - 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.
Auxiliary tanks - The auxiliary tanks are variable ballast tanks located at or near the submerged center of buoyancy, and are used to vary the over-all trim of the boat.
Trim tanks - The trim tanks are the variable ballast tanks nearest the bow and stern of the boat and are used to provide fore-and-aft compensation.
Normal fuel oil tanks - Tanks designed solely for containing the engine fuel oil are known as normal fuel oil tanks. Note that because fuel tanks are located outside the pressure hull and cannot withstand the pressure of the sea during a dive they must always be completely filled with fluid. As fuel is withdrawn from these tanks it is replaced with sea water. The remaining fuel oil floats on this compensating water so fuel is withdrawn for use from the top of the tank. Remaining fuel quantity is determined by locating the oil/water interface (via tubing installed in the tanks) and then calculating fuel volume from the tank geometry.
Fuel ballast tanks - The fuel ballast tanks are designed to be utilized as fuel oil tanks for increased operating range. When empty, they may be converted to main ballast tanks, providing additional freeboard and thereby increasing surface speed through decreased drag.
Expansion tank - The Expansion Tank, connected between the head box and the compensating water main, admits sea pressure to the fuel oil tanks. It receives any overflow from the fuel tanks resulting either from overfilling the fuel system or from temperature expansion. The bilges are pumped into this tank to prevent leaving an oil slick or polluting a harbor.
Collecting tank - The Collecting Tank, connected to the fuel oil tanks through the fuel transfer line, serves as a water and sediment trap for the fuel oil being transferred to the fuel pump.
Clean fuel oil tanks - The clean fuel oil tanks are storage tanks located within the pressure hull. They receive clean fuel oil from the purifiers and are the supply tanks from which the engines receive their clean fuel.
Poppet valve drain tank - The two poppet valve drain tanks are located under the platform deck of the fore and aft torpedo rooms immediately below the breech of the torpedo tubes. The air and water from the poppet valves, incident to the firing of torpedoes, is discharged into these tanks.
Fresh water tanks - The fresh water tanks contain potable water for drinking, cooking, and certain sanitary facilities.
Battery fresh water tanks - The battery fresh water tanks are storage tanks for the distilled water used in watering the main storage batteries.
Sanitary tanks - The sanitary tanks receive and store the ship's sanitary drainage until conditions permit overboard discharge.
WRT tanks - The WRT (Water 'Round Torpedo) tanks are variable ballast tanks located in the forward and after torpedo rooms for flooding or draining the torpedo tubes. When a torpedo is fired the slug of sea water that replaces the fired torpedo in the tube will approximately equal the weight of the torpedo that just left the boat, and this water is drained into the WRT so that the tube may be opened and reloaded, and thus maintaining trim. When torpedoes are loaded aboard sufficient water is pumped from the WRT tanks to balance the weight of the topedoes.
