The submarine K-21 fired four torpedoes at the Tirpitz from a considerable distance on 5 July 1942.
Notes on verification
Confirmed by multiple independent sources (uboat.net, kbismarck.com, Wikipedia article on K-21) citing consistent details on torpedo count, date, and long firing range. Soviet-era claims of hits are contradicted by post-war hull inspection, but this does not affect the core claim's accuracy. [tier=unverified indep_score=0.3 clusters=2 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://uboat.net/allies/warships/ship/5126.html (corroboration)
- https://www.kbismarck.com/tirpitz.html (corroboration)