CONFIDENTIAL REPORT 2G-21
S48-8
     
 
FORMER GERMAN SUBMARINE TYPE XXI
 
 
 
 
SCUPPERS AND DRAINS
 
     
 
SUMMARY
  
     
          Deck drains provided are as follows:  
 
After W.C. deck to after room bilge
1
Engine Room bilge to bilge water tank
1
Provision Lockers to Engine Room bilge
2
Conning tower to Pump room bilge
2
Control room to Pump room bilge
2
Forward battery to Battery bilge
2
Galley deck to sanitary tank No. 1
1
Rain clothes locker to washroom
1 (waterway)
Washroom deck to Sanitary No. 2
1
Batter automatic switch No. 1 to Provision locker
1
Battery automatic switch No. 2 to Provision locker
1
Chief's mess deck to forward Provision locker
1
 
          Bilge drains for equipment remain extensive and complete, as on earlier vessels.  
          Tank top drains, as such, are not provided, but tank top drainage is accomplished by providing openings and pathways which will carry the water away although they do not serve this sole purpose.  
     
 
July, 1946
 
 
 
 
PORTSMOUTH NAVAL SHIPYARD, PORTSMOUTH, N. H.
 
     
     
 
- 1 -
 
     
     

 

     
     
 
  REPORT 2G-21
S48-8
     
  1.  Comments:  
          It does not appear that the draining of water from the quarters into the battery wells is desirable or necessary in view of the availability of tanks to receive such water.  Further, in this type of vessel there is no sump to take a suction from the pump room or battery well, so that water draining into these spaces cannot be evacuated as it should be.  
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
 
- 2 -