What is the speed limit below 10,000 ft MSL?

The speed limit below 10,000 feet Mean Sea Level (MSL) is generally set at 250 knots. This regulatory guideline is part of the Federal Aviation Administration’s (FAA) rules designed to maintain safe operational speeds, particularly in busy air traffic areas.

Maintaining this limit helps to reduce the risk of wake turbulence, enhances the effectiveness of air traffic control, and contributes to the overall safety of aircraft operations in the lower altitude airspace. This regulation ensures that aircraft are flying at manageable speeds, allowing for better reaction times in crowded airspace and during approach and landing sequences.

In summary, the limit of 250 knots below 10,000 feet is an important safety measure in aviation, facilitating effective traffic management and preserving safe separation between aircraft.