PropertyValue
rdf:type
rdfs:label
  • Convoy SC 121
rdfs:comment
  • As western Atlantic coastal convoys brought an end to the second happy time, Admiral Karl Dönitz, the Befehlshaber der U-Boote (BdU) or commander in chief of U-Boats, shifted focus to the mid-Atlantic to avoid aircraft patrols. Although convoy routing was less predictable in the mid-ocean, Dönitz anticipated that the increased numbers of U-boats being produced would be able to effectively search for convoys with the advantage of intelligence gained through B-Dienst decryption of British Naval Cypher Number 3. However, only 20 percent of the 180 trans-Atlantic convoys sailing from the end of July 1942 until the end of April 1943, lost ships to U-boat attack.
Strength
  • 2
  • 3
  • 27
  • 69
dcterms:subject
dbkwik:military/property/wikiPageUsesTemplate
Partof
Date
  • --03-10
Commander
Caption
  • A depth charge being loaded onto a depth-charge thrower aboard the corvette HMS Dianthus
Casualties
  • 12
  • 270
Result
  • German tactical victory
combatant
  • 25
  • Canada
  • United States
Place
  • North Atlantic
Conflict
  • Convoy SC 121
abstract
  • As western Atlantic coastal convoys brought an end to the second happy time, Admiral Karl Dönitz, the Befehlshaber der U-Boote (BdU) or commander in chief of U-Boats, shifted focus to the mid-Atlantic to avoid aircraft patrols. Although convoy routing was less predictable in the mid-ocean, Dönitz anticipated that the increased numbers of U-boats being produced would be able to effectively search for convoys with the advantage of intelligence gained through B-Dienst decryption of British Naval Cypher Number 3. However, only 20 percent of the 180 trans-Atlantic convoys sailing from the end of July 1942 until the end of April 1943, lost ships to U-boat attack.