When was the the ship launched ,that along with the Tripitz and the Lützow was a target for  Operation Source ?
German battleship Scharnhorst:  The ship was built at the "Kriegsmarinewerft" dockyard in Wilhelmshaven; she was laid down on 15 June 1935 and launched a year and four months later on 3 October 1936.
i don't know