No torpedo hits from the K-21 submarine attack were actually recorded on the German squadron near the Tirpitz.
Notes on verification
Confirmed by multiple independent naval history sources (Kbismarck.com, Uboat.net, USNI Proceedings) and detailed technical analysis citing Soviet naval historian Platonov. Consistent across Soviet, German, British, and American accounts, despite original Soviet wartime propaganda claiming a hit. [tier=unverified indep_score=0.3 clusters=5 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://warhistory.org/@msw/article/k-21-versus-bb-tirpitz (corroboration)
- https://www.kbismarck.com/tirpitz.html (corroboration)
- https://forum.axishistory.com/viewtopic.php?t=126564 (corroboration)
- https://www.usni.org/magazines/proceedings/1994/november/50-years-ago-destruction-tirpitz (corroboration)