On 9 July Deere shot down a Bf 109 over the channel .
On 9 July Deere then collided head on with a Bf 109 of 4 Staffel , Jagdgeschwader 51 , flown by Oberfeldwebel Johann Illner .
On 9 July Deere shot down a Bf 109 over the channel , but then collided head on with a Bf 109 of 4 Staffel , Jagdgeschwader 51 , flown by Oberfeldwebel Johann Illner .