Complex sentence: The PC-12 is Pilatus' first aircraft to be directed principally at the civil market; despite the company historically being a military-oriented supplier, military sales for the type were considered a low priority during the early stages of development.
Split into simpler sentences: The PC-12 is Pilatus' first aircraft directed principally at the civil market. Despite the company historically being a military-oriented supplier, military sales for the type were considered a low priority during the early stages of development.