| Plate 15A:  | 
          Engine starting air and induction air (for MAN engines)  | 
        
        
          |     "   16:  | 
          Flooding, venting, exhaust gas and emergency blowing systems  | 
        
        
          |     "   17:  | 
          Blowing and emergency blowing systems for ballast, regulating and negative buoyancy tanks | 
        
        
          |     "   18:  | 
          Compartment ventilating and supply systems (emergency ventilating) | 
        
        
          |     "   19:  | 
          Switching diagrams for the compartment ventilation system  | 
        
        
          |     "   20:  | 
          Oxygen system  | 
        
        
          |     "   21:  | 
          Drinking water, wash water, waste and sanitary systems | 
        
        
          |     "   22:  | 
          (Left) Fresh water generating system;  (Right)  Voice tube system  | 
        
        
          |     "   23: | 
          Hydraulic system for operating periscopes | 
        
        
          |     "   24:  | 
          Ship's steam heating system  | 
        
        
          |     "   25:  | 
          Torpedo tube flooding and drainage systems | 
        
        
          |     "   26:  | 
          Lime-water (acid neutralizing) system (for battery compartments)  | 
        
        
          |     "   27:  | 
          Diagram of bunkers, containers and tanks | 
        
        
          |     "   28:  | 
          Ballast tank flooding and venting system | 
        
        
          |     "   29:  | 
          Air starting gear (for Krupp engines) | 
        
        
          |     "   29A:  | 
          Air starting gear (for MAN engines) | 
        
        
          |     "   30:  | 
          Reversing gear (for Krupp engines) | 
        
        
          |     "   30A:  | 
          Reversing gear (for MAN engines) | 
        
        
          |     "   31:  | 
          Cross-sectional arrangements | 
        
        
          |     "   32:  | 
          Specifications for hose and connections for piping systems  | 
        
        
          |     "   33:  | 
          Pumping plan | 
        
        
          |     "   34 | 
          Vibration and noise absorbing mountings, starboard and port | 
        
        
            | 
            |