One proposed way to strengthen the raid is to send additional Swordfish carrying mines. The existing torpedo and bomb attacks are judged to be near the limits imposed by the conditions inside the harbour. Mines would extend the disruption into the recovery and repair effort after the aircraft had left. This counterfactual depends on having extra aircraft available and does not describe mining during the actual raid.
Notable Point ยท 51:35-52:14
Could mines have obstructed recovery after Taranto?
A proposed addition to the raid uses extra Swordfish to lay mines that would complicate work after the bombing and torpedo attacks.