Seeschlacht bei Kap Teulada
MacLachlan found himself at the heart of the battle for the island before the squadron arrived. On 27 November the convoy came under attack from the Italian Navy in the Battle of Cape Spartivento. MacLachlan saw the Italian fleet at a distance and witnessed enemy shells splashing around the ship. He also witnessed an attack by Italian Savoia-Marchetti SM.79 bombers but they failed to damage the ships. Most of the Hurricanes that took off from the "Argus" fell into the water out of fuel. The pilots had not run the Hurricanes at economic speeds for fuel consumption.