A key aim for the PC-21 was to allow jet aircraft pilots to perform the majority of their training using the type before converting to jet-powered types, allowing operators to make substantial savings. In order to achieve this aim, the new trainer was required to have an expanded performance envelope in terms of aerodynamics, cockpit equipment, flexibility, and ease of maintenance. In May 2002, Pilatus announced that it aimed for the PC-21 to capture 50% of the global trainer aircraft market between 2005 and 2030. The Pilatus PC-21 is an advanced single-engine trainer aircraft; it is often referred to by Pilatus as being the "Twenty-first Century Trainer". The type can be applied for various training capacities, including basic flying training, advanced flight training, full mission management training, and embedded simulation/emulation. In order to perform these functions, the aircraft possesses a powerful, flexible, and cost-effective integrated training system; providing sufficient ease of use for inexperienced pilots while posing greater challenge to advanced pilots. The aircraft features a tandem-seating arrangement (student in-front/instructor behind) in a bird strike-resistant glass canopy with allround vision. The cabin, which is pressurized, is equipped with an On-Board Oxygen Generation System (OBOGS), air conditioning, and Martin-Baker CH16C Zero-Zero ejection seats. The flight controls, which are fully balanced and harmonized, are optimized for ease of operation and overall effectiveness. An anti-g system is also present in order to minimize the effects of high g-forces experienced during tactical training and aerobatic maneuvers. Pilots are able to spend a greater amount of time concentrating on the aircraft's external situation and upon mission data inputs due to an ergonomic design approach, ease-of-use controls, and clear visual/system data displays. In addition, a full autopilot and civil flight management system are also present. The PC-21 was one of the submissions for the Royal Australian Air Force's project AIR 5428, which sought a replacement of its Pilatus PC-9s; in September 2015, it was announced that the consortium comprising Lockheed Martin, Pilatus and Hawker Pacific ("Team 21"), had won the bid to provide 49 PC-21s to the Australian Defence Force. For more details, click here.