What is the maximum indicated airspeed allowed when operating below 10,000 feet?

What is the maximum indicated airspeed allowed when operating below 10,000 feet?

• A. 250 knots
• B. 300 knots
• C. 200 knots
• D. 270 knots

Answer: (A)

The main rule here is a regulatory speed limit: below 10,000 feet, you must not exceed 250 knots indicated airspeed. This limit is defined to keep speeds safe for nearby traffic, give pilots time to react, and reduce wake turbulence risks in busy, lower-altitude airspace. Indicated airspeed is what the airspeed indicator shows, not corrected for altitude or temperature, so this limit applies regardless of how fast your true airspeed might be at that altitude. Any of the other speeds would exceed this mandated limit, which is why 250 knots is the correct maximum.

The main rule here is a regulatory speed limit: below 10,000 feet, you must not exceed 250 knots indicated airspeed. This limit is defined to keep speeds safe for nearby traffic, give pilots time to react, and reduce wake turbulence risks in busy, lower-altitude airspace. Indicated airspeed is what the airspeed indicator shows, not corrected for altitude or temperature, so this limit applies regardless of how fast your true airspeed might be at that altitude. Any of the other speeds would exceed this mandated limit, which is why 250 knots is the correct maximum.