What is the minimum speed on final?

What is the minimum speed on final?

• A. 105 knots
• B. 110 knots
• C. 115 knots
• D. 120 knots

Answer: (B)

The speed on final is the minimum safe speed you should maintain to stay out of a stall while still keeping control authority and a stable approach. In landing configuration, the airplane’s stall speed is the lowest clean airspeed at which you can fly with full control. To ensure a comfortable margin above stall, you multiply that stall speed by a safety factor (often around 1.2 to 1.3, depending on weight, wind, and configuration). For this aircraft, that calculation puts the minimum final approach speed at about 110 knots. That choice gives enough margin to handle gusts and small deviations without risking a stall, while staying efficient for the approach. The other options are either too close to stall or unnecessarily high for a minimum final speed.

The speed on final is the minimum safe speed you should maintain to stay out of a stall while still keeping control authority and a stable approach. In landing configuration, the airplane’s stall speed is the lowest clean airspeed at which you can fly with full control. To ensure a comfortable margin above stall, you multiply that stall speed by a safety factor (often around 1.2 to 1.3, depending on weight, wind, and configuration). For this aircraft, that calculation puts the minimum final approach speed at about 110 knots. That choice gives enough margin to handle gusts and small deviations without risking a stall, while staying efficient for the approach. The other options are either too close to stall or unnecessarily high for a minimum final speed.