Rubuta ci gaba ga wannan sakin layi - Bayan Faransa ta mika wuya
, František ya gudu zuwa Biritaniya kuma bayan horo a ranar 2 ga Agusta an sanya shi zuwa Polish No. 303 Squadron da ke RAF Northolt, yana yawo da mayakan Hawker Hurricane. An yi amfani da František zuwa jirgin sama mai tsufa tare da saurin saukowa, kuma a ranar 8 ga watan Agusta a ƙarshen jirgin horo, ya manta ya saukar da jirginsa na Hurricane wanda za'a iya cirewa kuma ba da gangan ya sauka a ciki. Ba a ji masa rauni ba, kuma za a iya gyara jirgin. Rundunar ta shiga aiki a mataki na karshe na yakin Birtaniya. Farkon nasarar da aka tabbatar da František shine harbi Messerschmitt Bf 109E a ranar 2 ga Satumba, 1940. Nasara ta biyar da ya yi kusan ta kashe shi. A ranar 6 ga Satumba ya harbe Bf 109E na &lt;a href="Jagdgeschwader%2052"&gt;III/JG 52&lt;/a&gt; kusa da Sevenoaks a Kent, amma Hurricane na František ya lalace sosai har ya tilasta masa sauka kusa da Falmer.