Vref stands for which?

• A. Reference takeoff speed
• B. Reference landing speed
• C. Final approach speed
• D. Engine reliability speed

Answer: (B)

Vref is the reference landing speed—the speed pilots aim to fly on the final approach to ensure a stable, controllable landing. It’s based on the aircraft’s stall speed in the landing configuration and includes a safety margin so you stay clear of stall even with small gusts or adjustments in weight or configuration. In training, you’ll see Vref tied to a practical approach speed that keeps the airplane energy at a safe level for the flare and touchdown. The exact value changes with weight, flap setting, and aircraft type, but the idea remains the same: a standardized target speed that balances controllability with a gentle, safe approach. The other options describe different ideas of speed but don’t match this specific terminology.