Question

What is meant by minimum control speed ground?

(a) The airspeed below which the rudder the will not be capable of producing a yawing moment

(b) The airspeed below which the rudder the will not be capable of producing a pitching moment

(c) The airspeed below which the rudder the will not be capable of producing a rolling moment

(d) The airspeed below which the rudder the will not be capable of producing a dutch moment

This question was posed to me in an interview.

Question is taken from Take-off Performance in portion Take-off and Landing Performance of Aircraft Performance

Answer 1

The correct answer is (a) The airspeed below which the rudder the will not be capable of producing a yawing moment

To explain I would say: The minimum control speed ground is the airspeed below which the rudder the will not be capable of producing a yawing moment. If there is an engine failure at this moment then it is must to stop the take-off run.