Battle of the Atlantic:
Technical Intelligence From Allied Communications Intelligence
national security agency
central security service

Table of Contents

  1. German Search Receivers and Radar

  2. Anti-detection Devices

  3. Schnorchel

  4. Armament (Torpedoes and Anti-aircraft guns)

  5. German-Japanese Exchange of Information

  6. Fuel

  7. U-Boat Navigation

  8. U-Boat Communications and U.S. Navy Communications Intelligence

Transcribed and formatted by Ian Williams for the HyperWar Foundation