What is VMCA with Flaps UP?

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Multiple Choice

What is VMCA with Flaps UP?

VMCA with flaps up is the minimum airspeed at which you can maintain safe directional control with the critical engine inoperative when the airplane is in takeoff configuration (flaps up). With one engine failed, the airplane yawes toward the failed side, and you must rely on rudder authority and aerodynamic stability to hold a straight flight path. As you slow down, rudder effectiveness and overall control authority decrease due to lower dynamic pressure, so you need a higher speed to maintain control. For this aircraft in the flaps-up takeoff setting, that minimum controllable speed is 94 knots. The lower speeds listed would not guarantee adequate rudder effectiveness to counter the asymmetric thrust, so they aren’t safe VMCA values in this configuration.

VMCA with flaps up is the minimum airspeed at which you can maintain safe directional control with the critical engine inoperative when the airplane is in takeoff configuration (flaps up). With one engine failed, the airplane yawes toward the failed side, and you must rely on rudder authority and aerodynamic stability to hold a straight flight path. As you slow down, rudder effectiveness and overall control authority decrease due to lower dynamic pressure, so you need a higher speed to maintain control. For this aircraft in the flaps-up takeoff setting, that minimum controllable speed is 94 knots. The lower speeds listed would not guarantee adequate rudder effectiveness to counter the asymmetric thrust, so they aren’t safe VMCA values in this configuration.

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