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. [tier=unverified indep_score=0.3 clusters=3 claim_tier=notable] [rescored 2026-09-15: curated origin-host map (PR #65); unclassified hosts no longer scored as aggregators]
Sources
- Attack on the battleship Tirpitz by submarine K-21 (wikipedia)
- https://www.kbismarck.com/tirpitz.html (corroboration)
- https://historynet.com/world-war-ii-convoy-pq-17/ (corroboration)
- https://military-history.fandom.com/wiki/Operation_Title (corroboration)