the exhall mid-air collision Catastrophe happened on saturday 19 february 1949 over the village of exhall when a british european airways douglas dc-3 / douglas dakota collided Catastrophe in clear weather with a royal air force avro anson unk .

the united states air force marathon is an annual event Social_event held on the third saturday in september at wright patterson air force base , ohio , home to the national museum of the united states air force .

the saturday `` twilight '' show Social_event includes Cause_to_be_included military and civilian performers , a fireworks display and the detonation of the `` great wall of fire Use_firearm '' pyrotechnic display .