CONFIDENTIAL REPORT 2G-21
S62-1
     
 
FORMER GERMAN SUBMARINE TYPE XXI
 
 
 
 
SWITCHBOARDS
  
     
 
SUMMARY
  
     
          The design, construction and practices incorporated in the type IX-C40 vessels are also incorporated in type XXI vessels with the following exception.  
          1.  Due to the fact that space is at a premium in the control room the panels are not grouped into a common switchboard, a few of the components normally considered as part of the distribution boards are mounted individually.  
          The voltage ranges controlled by these boards correspond to those on the type IX-C40 vessels.  
          Refer to Report 2G-9C-S62-1 on type IXC-40 vessels and to the German Instruction Book "Schiffnetz und Verbracher U Boote Typ XXI" (Ship's Circuits and Auxiliaries U-Boat Type XXI) for construction details and practices.  
     
     
 
March, 1946
 
 
 
 
PORTSMOUTH NAVAL SHIPYARD, PORTSMOUTH, N. H.
 
     
     
     
 
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