Complex sentence: The CAP 10 is one of the most successful aerobatic training aircraft in the world, around 200 aircraft are still flying in the late 2000s and nearly two generations of aerobatic champions made their classes with it.
Split into simpler sentences: The CAP 10 is one of the most successful aerobatic training aircraft in the world. About 200 aircraft are still flying in the late 2000s and nearly two generations of aerobatic champions made their classes with it.