Business Aviation plays a key global role as a personalized mode of transport for business travelers, in-demand specialists and urgently-needed spare parts, as well as an irreplaceable type of transport for ambulance flights. The active business jet fleet currently comprises over 22,000 aircraft. In addition, there are some 15,000 propeller-driven aircraft with turbo prop engines that perform important services in the areas of Business Aviation and aerial work. In terms of connectivity too, Business Aviation leads the way. It was business people in particular who early on had a need to be reachable, even when traveling. Since they were also prepared to make investments in their aircraft.