Kryten
you are probably right (wonders of the internet)
according to
German Battleship Bismarck, sinking of
The same article states
"At 0015 on the 25th the Victorious launched seven torpedo-carrying Swordfish planes, supported by five Fulmar monoplanes. One hit was made on the starboard beam of the Bismarck, but her armor was not penetrated. The Bismarck put up a tremendous antiaircraft barrage and even fired on the attacking planes with her heavy guns; one Fulmar may have been brought down by the wind current set up by a 15-inch shell. One other Fulmar and two Swordfish were lost."
The same article say "At 1500 an air striking force was dispatched from the Ark Royal, but its attack was ineffectual."