Which statement best describes when you should accelerate to 250 knots during takeoff?

Which statement best describes when you should accelerate to 250 knots during takeoff?

• A. After passing +3,000 Feet AGL
• B. Immediately after liftoff
• C. At 0 feet
• D. At +5,000 Feet AGL

Answer: (A)

In takeoff, you want to reach 250 knots once you’re in a stable, safe climb in clean configuration. The best moment for that acceleration is after you have passed 3,000 feet above the ground. This point gives you enough altitude to ensure obstacle clearance and a stable climb while you transition to higher speed. Accelerating immediately after liftoff would keep you in a takeoff configuration longer and isn’t ideal for control and margins, and waiting until 5,000 feet AGL unnecessarily delays the speed you’re intended to achieve during the early climb. So, you accelerate to 250 knots after crossing 3,000 feet AGL.

In takeoff, you want to reach 250 knots once you’re in a stable, safe climb in clean configuration. The best moment for that acceleration is after you have passed 3,000 feet above the ground. This point gives you enough altitude to ensure obstacle clearance and a stable climb while you transition to higher speed. Accelerating immediately after liftoff would keep you in a takeoff configuration longer and isn’t ideal for control and margins, and waiting until 5,000 feet AGL unnecessarily delays the speed you’re intended to achieve during the early climb. So, you accelerate to 250 knots after crossing 3,000 feet AGL.