If Vs is 52 knots in landing configuration, Vref is approximately which value?

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Multiple Choice

If Vs is 52 knots in landing configuration, Vref is approximately which value?

Vref is the speed used on final approach to land, chosen to provide a safe margin above stall speed in the landing configuration. It’s typically about 1.3 times Vs. With Vs = 52 knots, Vref ≈ 1.3 × 52 = 67.6 knots, which is commonly rounded to about 68 knots. This keeps you well above stall while staying practical for approach performance. The other options don’t match this rule: 52 knots is just stall speed, and 66 or 78 knots are either slightly below or above the typical 1.3× margin.

Vref is the speed used on final approach to land, chosen to provide a safe margin above stall speed in the landing configuration. It’s typically about 1.3 times Vs. With Vs = 52 knots, Vref ≈ 1.3 × 52 = 67.6 knots, which is commonly rounded to about 68 knots. This keeps you well above stall while staying practical for approach performance. The other options don’t match this rule: 52 knots is just stall speed, and 66 or 78 knots are either slightly below or above the typical 1.3× margin.

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