October 1916. On 30 December 1938, 41 Squadron was issued with the Supermarine Spitfire, becoming the third RAF squadron to receive them. By early February 1939, the squadron had received a full complement of 20 Mark I Spitfires, at the cost of £129,130. Around 200 pilots served with 41 Squadron between 1 April 1923 and 2 September 1939. During this period, no battle honours were granted, nor any decorations awarded, but the era produced ten Air Commodores, nine Air Vice-Marshals, two Air Marshals and two Air Chief Marshals. During these same years, eleven men were killed and three injured in flying accidents, and three injured in aircrew accidents on the ground. Second World War, 1939–1945 Following the declaration of war on 3 September 1939, 41 Squadron spent the first several months on monotonous routine patrols in the north of England. At the end of May 1940, the squadron flew south to RAF Hornchurch to participate in the evacuation of Dunkirk. Twelve days later, they returned to RAF Catterick, claiming six Axis aircraft destroyed and one probable, but also left behind two pilots, the squadron's first pilot killed in action and their first lost as a prisoner of war. After resting for a few weeks, the squadron headed south again on 26 July 1940, to participate in the first phase of the Battle of Britain. In its two-week tour, the Squadron claimed 10 Axis aircraft destroyed, four probables and three damaged, for the loss of one pilot killed and a second wounded. Again, 41 Squadron returned north to Catterick for a few weeks rest, but returned to Hornchurch on 3 September 1940, where they remained until the end of February 1941. They were now in the thick of the Battle of Britain. The price was high, but so was the damage they inflicted on the Luftwaffe. On 5 September, the squadron experienced one of its blackest days. The Commanding Officer and OC, B Flight, were killed in action and three other pilots were shot down and two were wounded in action; one of these was hospitalised for six months. On 31 October 1940, the Battle of Britain was considered officially over. 49 pilots flew with the squadron between 10 July and 31 October 1940. Of these, 42 were British, 2 Canadian, 2 Irish and 2 New Zealanders. 10 were killed and 12 wounded in action (44% casualties). The squadron claimed over