Equipment taken of from Polish destroyer ORP “Piorun” (Thunderbolt).
On 13th-15th March 1941, Piorun took part in the defence of Clydebank against Luftwaffe air raids, as he happened to be undergoing repairs in John Brown's shipyard. Many people remembered that he put up a terrific barrage on the first night, which may have caused the shipyard to get off comparatively lightly. A memorial to the crew of the ship was later erected in Clydebank.
In May 1941 he was escorting convoy WS-8B, along with four Royal Navy destroyers, when they were ordered to leave the convoy to take part in the pursuit of the German battleship Bismarck
. Piorun took part, along with the British destroyers, in the shadowing of and torpedo attacks on the Bismarck
the night before she was sunk, and at one point Piorun
had an exchange of fire for half an hour. According to one report Plawski (captain) transmitted the message "I am a Pole
" b[*******Red]efore commencing fire on the Bismarck
was very low on fuel, so he was ordered home before the Bismarck