CONFIDENTIAL REPORT 2G-9C
S74
     
 
FORMER GERMAN SUBMARINE TYPE IX-C
  
 
 
 
ANTI-AIRCRAFT GUNS
 
     
 
SUMMARY
  
     
          Original anti-aircraft armament consisted of one 37 mm gun on the main deck aft, and one 20 mm gun at the after end of the cigarette deck.  In addition, one 8 mm type C/34 machine gun was provided.  Ready service tanks were provided topside only for the 37 mm gun.  
          As changed at the time of the general re-armament of the submarines, the vessels were provided with several different combinations of 20 mm and 37 mm guns, usually consisting of two twin 20s on the cigarette deck wings and a single 37 on the after extension of the cigarette deck.  This was not uniform, however, for twin 37 mm gun mounts have been observed on some vessels at Portsmouth.  With the guns were provided the usual pressure proof stowage for spare barrels, ready service lockers and dip pots.  
          Pipe guards limit the depression angle at which the guns can be fired.  
     
     
     
     
     
     
 
July, 1946
 
 
 
 
PORTSMOUTH NAVAL SHIPYARD, PORTSMOUTH, N. H.