What is the minimum airspeed recommended in a go-around scenario?

In a go-around scenario, the aircraft should be flown at a minimum airspeed that provides sufficient performance margin above the landing reference speed, Vref. The recommended minimum airspeed is typically Vref plus a designated number of knots to ensure adequate lift and control authority during the transition from a landing configuration to a climb.

Vref is the landing reference speed, which is calculated based on the aircraft's weight and configuration at the time of landing. Adding 20 knots provides a safety buffer above this reference speed, which is essential to ensure that the aircraft can achieve positive climb performance without risking a stall, especially when accelerating out of a landing configuration straight into a climb.

This increase over Vref takes into account factors such as potential loss of altitude and performance degradation during the transition period in a go-around. Ensuring the aircraft is well above Vref supports stability, particularly in varied conditions such as windshear or wake turbulence.

Therefore, the answer of Vref plus 20 knots is justified for a safe and effective go-around, allowing the aircraft to respond properly and adhere to safety protocols during this critical phase of flight.