Complex sentence: The first prototype "D-EMKB" appeared in competition, three months after its first flight, at the 1970 6th World Aerobatics Competition at Hullavington, England where it was placed 4th on the individual men's list.
Split into simpler sentences: The first prototype "D-EMKB" appeared in competition, three months after its first flight, at the 1970 6th World Aerobatics Competition at Hullavington England. It was placed 4th on the individual men's list.