The German squadron including the Tirpitz sailed on 5 July 1942 to intercept Arctic convoy PQ 17.
Notes on verification
Multiple independent, credible naval history sources (HistoryNet, kbismarck.com, Wikipedia, military-history.fandom.com) consistently confirm the date, ships involved, and purpose of the sortie as part of Operation Rösselsprung.
Sources
- Attack on the battleship Tirpitz by submarine K-21 (en.wikipedia.org)
- https://www.kbismarck.com/tirpitz.html (kbismarck.com)
- https://historynet.com/world-war-ii-convoy-pq-17/ (historynet.com)
- https://military-history.fandom.com/wiki/Operation_Title (military-history.fandom.com)