Karl Doenitz (1942)

Karl Doenitz, 

late 1942

There can no longer be any doubt that even though we have made such considerable progress, the enemy is tactically gaining the upper hand with surface location by destroyers, escort vessels, and aircraft have deprived our tactical advantages. We need to transfer the submarines to a more appropriate under-water element-we need an approach where we have a high underwater speed submarine. We have been testing the high test peroxide turbines which are helping us, and on June 24 I had laid out very clearly that the new Walter U-boats must be speeded up and this is because the U-boats are qua boats, which means their faulty armaments leaves them in an inferior position. I wish to stress how importance of installing the Fu MB which are search receivers and they have afforded considerable relief! Let us push harder.