Which speed reference is required for takeoff until MFRA in this procedure?

Which speed reference is required for takeoff until MFRA in this procedure?

• A. V2+10
• B. V2+20
• C. V2
• D. V1+10

Answer: (B)

The speed reference used for the takeoff segment up to MFRA is chosen to guarantee sufficient climb performance and energy margin through that part of the procedure. In this case, you’re required to maintain V2 plus 20 knots until you reach MFRA. V2 is the minimum takeoff safety speed, but to ensure you can meet the published climb gradient and have enough energy to handle potential engine-out situations on the way to MFRA, an extra 20 knots is needed. This extra margin helps you stabilize, maintain obstacle clearance, and smoothly transition through flap retractions and configuration changes before MFRA. Choosing a lower reference like V2 or V2 plus only 10 knots would reduce the energy margin and could compromise climb performance at the critical early phase. V1 plus 10 is a decision speed used for abort scenarios on the ground, not for the climb segment after liftoff, so it doesn’t apply here.

The speed reference used for the takeoff segment up to MFRA is chosen to guarantee sufficient climb performance and energy margin through that part of the procedure. In this case, you’re required to maintain V2 plus 20 knots until you reach MFRA. V2 is the minimum takeoff safety speed, but to ensure you can meet the published climb gradient and have enough energy to handle potential engine-out situations on the way to MFRA, an extra 20 knots is needed. This extra margin helps you stabilize, maintain obstacle clearance, and smoothly transition through flap retractions and configuration changes before MFRA.

Choosing a lower reference like V2 or V2 plus only 10 knots would reduce the energy margin and could compromise climb performance at the critical early phase. V1 plus 10 is a decision speed used for abort scenarios on the ground, not for the climb segment after liftoff, so it doesn’t apply here.