General Authority of Civil Aviation (GACA) Aeronautical Information Publication (AIP) Practice Exam

What must the pilot do to maintain speed below Vmin due to increased column force?

1. Apply continuous back pressure

2. Disengage autopilot

3. Reduce engine power

4. Increase altitude

The correct answer is: Apply continuous back pressure

To maintain speed below Vmin due to increased column force, it is essential for the pilot to apply continuous back pressure. Vmin refers to the minimum speed at which an aircraft can maintain controlled flight. If increased force is required on the control column (the stick or yoke), it often indicates that the aircraft is approaching or exceeding Vmin. By applying continuous back pressure, the pilot keeps the aircraft at a higher angle of attack, which helps maintain lift and control at lower speeds. This technique allows the pilot to manage the aircraft’s speed effectively while ensuring stability and minimizing the risk of stalling. The other options may not address the need to maintain speed below Vmin appropriately. Disengaging the autopilot or reducing engine power do not directly affect the control forces felt by the pilot in the same way, and increasing altitude may not be feasible or effective depending on the situation and altitude constraints. Therefore, continuous back pressure is the most relevant action to take for managing the aircraft's speed and maintaining safe flight parameters.