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U-Boot Type XXI in Detail

Part 6

n Text by Frank Spahr
n Photos by Frank Spahr



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Entering the diesel engine room, one is struck by the bulk of twin diesel engines. However, the diesels in the Type XXI were smaller and less powerful than the electrical engines (2,000 vs. 2,500 hp), another difference towards earlier submarine designs.
  

 


In the post-war service, the diesel engines of Wilhelm Bauer were used exclusively to recharge the batteries and had generators coupled to them as shown here.
 

 


Lime absorption device for carbon dioxide.
 

 


More plumbing and a lone lamp at the roof of the engine room.
 

 


Also housed in this part of the boat are the powerful compressors used to produce compressed air to empty the diving cells. Here is one of the compressors and the next bulkhead leading to the electrical engine room.
 

 


Compressed  air ducting
 

 


Compressor tank sitting on top of the engine block.
 

 


Gauge for compressor RPM.
 

 

 


The main electrical engines and the silent engines are housed in the next compartment.
 

 


Controls for the electrical engines.
 

 

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