Where are the avionics installed in the PC-12?

The correct choice regarding the location of the avionics in the PC-12 is that they are installed under the cabin floor. This installation position is designed to optimize space within the cockpit and cabin area while allowing for efficient heat dissipation and easier access for maintenance. The placement under the cabin floor ensures that the crucial avionics components are protected from environmental factors that might affect their operation, while also keeping the cockpit and cabin organized and uncluttered.

The other locations mentioned do not typically house the avionics in the PC-12. Avionics housed in the cockpit would limit space and accessibility, while placing them in the tail section or in the overhead panel would not provide the necessary protection and functionality that the under-floor installation provides. Understanding the proper installation of avionics in an aircraft is essential for safety and operational efficiency, and in the context of the PC-12, this design choice reflects careful engineering considerations.