FAA Military Competency Practice Exam

What is required for flight operations in Class A airspace?

1. Operations may be conducted under VFR

2. Pilots must possess a secondary pilot rating

3. All operations must be conducted under instrument flight rules

4. ATC clearance is not mandatory

The correct answer is: All operations must be conducted under instrument flight rules

In Class A airspace, all flight operations must be conducted under instrument flight rules (IFR). This requirement is in place because Class A airspace exists from 18,000 feet MSL up to and including flight level 600, where aircraft are operating at high altitudes where visibility and other visual reference aids may be limited. IFR ensures that pilots utilize instruments for navigation and control of the aircraft, allowing for safe separation between aircraft in this heavily trafficked airspace. Additionally, operations in Class A airspace necessitate compliance with the structured ATC system, which helps manage the complexity of multiple aircraft navigating at high altitudes. Consequently, effective communication and adherence to IFR are crucial for maintaining safety and efficiency in this environment.