Heavy cruiser Blücher enroute to Oslo in the morning April 9th 1940.
Time reference: Norwegian timing. (e.g. 04:21 (Norwegian) = 05:21 (German))
Timing and facts based on: 
Erste offizier, Blücher: KzS Heymann (Koop&amp;Schmolke: Die Schweren Kreutzer der Admiral Hipper-Klasse)
Konteradmiral Kummetz, Kampfgruppe V,  (Koop&amp;Schmolke: )
Kommandørkaptein Odd T. Fjeld (Odd T. Fjeld: Klar til strid)
Map based on File:Oslofjord.svg
Own work
KjellG