Complex sentence: Otto Wermuth, but the boat remained in port until August 27, when "Korvettenkapitän" Günter Kuhnke, Commander of the 10th Flotilla, took command for a transit to Flensburg, arriving October 14.
Split into simpler sentences: Otto Wermuth, but the boat remained in port until August 27. Then "Korvettenkapitän" Günter Kuhnke, Commander of the 10th Flotilla, took command for a transit to Flensburg, arriving October 14.