What an F-35 could do to Bismarck

How many F-35s would be needed to sink Bismarck?

Potentially one making repeated sorties, but the result depends on its weapons because ordinary guided bombs are not ideal armour penetrators.

British F-35s lacked a dedicated naval strike missile in this scenario and would rely on laser-guided bombs that were not designed as armour penetrators. That makes weapon choice more important than a simple count of aircraft. Even one F-35 could make repeated sorties, progressively damaging and weakening the ship. Success would come through cumulative attrition, with no guarantee that one attack would sink Bismarck.