CONFIDENTIAL REPORT 2G-21
S26
     
 
FORMER GERMAN SUBMARINE TYPE XXI
 
 
 
 
MOORING
  
     
 
SUMMARY
  
     
          The mooring machinery is small and of low power.  It consists of an anchor windlass forward, fitted with a capstan head.  
          Other equipment consists of a stockless anchor and cable, capstan bars, a cable reel, and a cowl for protection of the anchor when stowed.  
          The anchor is only for use during the training period, and is removed at the end of the period, together with the cowl and the cable.  
          The windlass motor, which is located in the torpedo room, is the same size and type as the one for the after capstan on type XB boats.  It operates at 57 psi, weighs 207 lbs., and is rated at 7 horse power.  It works through a gear train giving a 58 to 1 reduction, and is designed to provide a turning moment of 200 m kg. (1440 ft.lb.) on the drum.  The gearing weighs 463 lbs.  
          The gearing to the removable capstan head, which is 200 mm (7.87 in.) in diameter and which weighs 110 lbs., is designed to permit a load of 2000 kg (44100 lbs.) at a speed of 11.4 meters per minute (37.4 ft. per min.).  
          The unit is primarily a capstan, with additional temporary duty as an anchor windlass.  It represents no change from previous principle and is undeserving of further exploitation.  
     
 
March, 1946
 
 
 
 
PORTSMOUTH NAVAL SHIPYARD, PORTSMOUTH, N. H.