FAA Ground School Practice Test

What is the maximum indicated airspeed at which a person may operate an aircraft below 10,000 feet MSL unless otherwise authorized?

1. 200 knots

2. 250 knots

3. 300 knots

4. 180 knots

The correct answer is: 250 knots

The maximum indicated airspeed at which a person may operate an aircraft below 10,000 feet MSL is 250 knots. This regulation is specified in the Federal Aviation Regulations (FAR), specifically FAR 91.117, which is aimed at promoting safety by reducing the incidence of high-speed aircraft operations in terminal airspace and near airports. The limitation ensures that aircraft operating in this critical altitudinal zone do not exceed speeds that could interfere with other traffic and that are manageable for pilots during landing and departure procedures. While 200 knots is an applicable limit for certain airspace and operational situations, it is typically more relevant to specific airspace classifications or situations rather than a blanket rule below 10,000 feet MSL. The regulation recognizes the need for a slightly higher speed allowance, facilitating more efficient operations while maintaining safety. The 300 knots speed is higher than the established limit, making it inappropriate for standard operations below 10,000 feet. Likewise, 180 knots is generally used for different operational contexts and does not apply as a maximum speed in this scenario. Therefore, 250 knots correctly reflects the regulatory maximum indicated airspeed, accommodating a range of aircraft operations while considering standards for safety and efficiency.