What shops are encompassed within the Aircraft division?

The Aircraft division encompasses Airframes, Power Plants, and Aviation Life Support Systems because these areas directly relate to the core functions and components necessary for the operation and maintenance of aircraft.

Airframes involve the structures of the aircraft, including the body, wings, and landing gear, which are essential for providing the necessary support and aerodynamics. Power Plants refer to the engines and propulsion systems that allow the aircraft to operate, and maintaining these is crucial for ensuring flight capability. Lastly, Aviation Life Support Systems include equipment and systems that ensure the safety and well-being of the crew, such as oxygen systems and ejection seats.

These specific areas are critical for the overall performance and safety of aircraft, which is why they are grouped within the Aircraft division. Other choices listed include areas that, while related to aviation, do not collectively represent the core operational aspects of aircraft maintenance and support as effectively as this option does.