during the period he flew hurricane "p3308", mckellar scored 13 victories and shared one more destroyed, four probable and one damaged, between 15 august and 7 october 1940. thus earned the distinction of being the hurricane with the highest number of kills during the battle of britain. it was later handed over to a czech unit, no. 312 squadron raf on 4 january 1941 and written off in an accident on 30 april 1941.