I te marama o Mei, i whai wāhi a Sheffield ki te whakaekenga o te kaipuke pakanga o Tiamana a Bismarck, i mawhiti i te whakaeke torpedo a te kaipuke rererangi a Fairey Swordfish o Ark Royal; Kotahi tekau ma tahi nga torpedo i hinga, a ko nga pupuhi Duplex hapa noa iho me te whakahaere pai o te kaipuke i whakaora i a ia mai i te aitua. (I roto i te ripoata mo te whakaeke, i kii a Admiral Sir John Tovey, te rangatira o te Home Fleet, kaore i tutuki i a Bismarck.
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