What is the speed for Flaps 8 to Flaps 1, as specified in the material?

• A. V2 + 12
• B. VT - 15
• C. V2 + 20
• D. Vref

Answer: (A)

During the takeoff/climb transition, you move from a more extended flap setting to a cleaner configuration while still needing a safe margin above stall and enough performance with one engine inoperative. The material specifies a fixed speed for the transition from Flaps 8 to Flaps 1: V2 plus 12 knots. Starting from V2 provides the necessary takeoff safety margin, and adding 12 knots ensures you’re sufficiently fast to maintain a positive climb gradient and adequate control as the flaps are retracted.

Choosing V2 plus 12 keeps you above stall risk and within the airplane’s performance envelope for the flap retraction sequence. It isn’t Vref, which is a landing speed, and it isn’t VT minus something or V2 plus a larger increment, which would either place you too slow to safely climb or unnecessarily high for this phase.