What is Vb below 10,000 ft?

What is Vb below 10,000 ft?

• A. 160
• B. 230
• C. 250
• D. 195

Answer: (C)

The main idea is the regulatory speed limit below 10,000 feet. In that altitude band, you must not exceed 250 knots indicated airspeed, regardless of configuration, unless a specific ATC or published restriction applies. That’s why the value 250 knots is the correct choice for Vb below 10,000 ft. The other numbers aren’t the general below-10,000 ft limit; they pertain to other speeds or limitations and don’t represent the standard ceiling in that airspace.

The main idea is the regulatory speed limit below 10,000 feet. In that altitude band, you must not exceed 250 knots indicated airspeed, regardless of configuration, unless a specific ATC or published restriction applies. That’s why the value 250 knots is the correct choice for Vb below 10,000 ft. The other numbers aren’t the general below-10,000 ft limit; they pertain to other speeds or limitations and don’t represent the standard ceiling in that airspace.