Sergeant Josef František DFM* (7 October 1914, Otaslavice - 8 October 1940) was a Czech fighter pilot and World War II flying ace. He flew for the air forces of Czechoslovakia, Poland and the United Kingdom. He is famous as being the first highest scoring ace in the Battle of Britain.
Born in Otaslavice in 1913, Josef František joined the Czechoslovak Air Force in 1934. After basic training he joined the Czechoslovak Air Force Air Regiment 2. In 1935 he was a Corporal in Air Regiment 1 and returned to Air Regiment 2 as a Sergeant in 1937. In June 1938 he became a fighter pilot serving in the 40th squadron in Prague flying the Avia B-534 and Bk-534 fighter. After Czechoslovakia fell under German occupation (15 March 1939) like many other Czechoslovak airmen he escaped to Poland. Most Czechoslovak airmen then left Poland for France before the start of the Second World War, though František decided to stay and serve with the Polish Air Force.During the German invasion of Poland in September 1939, František initially evacuated training aircraft from the air base at Dęblin. From 7 September he flew reconnaissance missions in an unarmed training plane, a RWD-8. On 19–20 September he attacked enemy columns near Kamionka Strumiłowa, throwing hand grenades on the troops below. On 20 September he was shot down near Złoczów, but was saved by a Polish crew that landed nearby. On 22 September František's unit was ordered to withdraw with their remaining aircraft to Romania. František managed to abscond from an internment camp in Romania and reached France via North Africa in October 1939.
In France František elected to remain with the Poles instead of joining the exiled Czechoslovak air force (a probable reason for this decision was a conflict with a Czech officer, who tried to arrest him for insubordination.)
There are no official French records to confirm he flew during the Battle of France, but several witnesses claim he downed 7 to 11 German planes and damaged more while serving in France under a different name. There may have been an identity confusion and may he have been mistaken for ace František Peřina. František himself claimed to have joined Armee de l'Air and scored 11 victories, receiving the customary Croix de Guerre for his first air-to-air victory.
After the fall of France František fled to Britain and after training on 2 August was assigned to No. 303 Polish Squadron based at RAF Northolt, flying Hawker Hurricane fighters. The squadron entered action in the last phase of the Battle of Britain. The first confirmed victory of Sgt. František was a German Bf 109E fighter on 2 September 1940.
A very ill-disciplined pilot, he was seen by his commanding officers as a danger to his colleagues when flying in formation. His British CO Squadron Leader R. Kellett, offered to arrange for František's transfer to a Czech squadron, but František preferred to stay and fight alongside his Polish colleagues. As all pilots were valuable, a compromise was created whereby František was allotted a "spare" aircraft so he could fly as a "guest" of the Squadron as and when he wanted to. Thus, František fought his own private war - accompanying the squadron into the air, but peeling off to fly a lone patrol over Kent, patrolling in the area through which he knew the German aircraft being intercepted would fly on their way back to base, possibly damaged and low on fuel and ammo. During the following month he shot down 17 German aircraft and 1 probable, of which 9 were Bf 109s, becoming one of the top scoring Allied fighter pilots of the Battle of Britain. His last victory was on 30 September 1940 and he was awarded the Distinguished Flying Medal.
On 8 October 1940, František's Hurricane crashed in Ewell, Surrey during a landing approach after a patrol. Reasons for the crash are not known, but according to some theories, he may have been making aerobatic figures to impress his girlfriend, or it might have been a result of battle fatigue and physical exhaustion.
He was buried in a Polish military cemetery. He was awarded several decorations, among them the Virtuti Militari 5th class and he was the first foreigner awarded the Distinguished Flying Medal with Bar.