FAA Ground School Practice Test

What is the minimum ground visibility at an airport located within Class D airspace for basic VFR takeoff or landing?

1. 1 mile

2. 2 miles

3. 3 miles

4. 4 miles

The correct answer is: 3 miles

For a basic VFR (Visual Flight Rules) takeoff or landing in Class D airspace, the minimum ground visibility requirement is 3 miles. This standard ensures that pilots have sufficient visual reference to navigate safely and effectively when operating under VFR conditions. It is essential for pilots to be able to see and identify both the runway and surrounding obstacles during their approach and departure phases. Class D airspace typically surrounds airports with an operational control tower, and the visibility requirements are designed to facilitate safe operations within this environment, allowing for effective separation between aircraft and ensuring they can maintain visual contact with the ground. Having a minimum visibility requirement helps pilots make informed decisions regarding their flight path and ensures that they can visually assess other aircraft, terrain, and obstacles. While lower visibility minimums may be permissible under certain circumstances, such as special VFR operations, the standard requirement for basic VFR is firmly established at 3 miles to maintain safety and operational integrity in busy airspace environments.