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What defines the stalling speed of an aircraft?

  1. The maximum speed at which the aircraft can fly

  2. The minimum speed to maintain level flight

  3. The speed needed to takeoff

  4. The speed during landing

The correct answer is: The minimum speed to maintain level flight

The stalling speed of an aircraft is defined as the minimum speed at which the aircraft can maintain level flight. At this speed, the aircraft is generating just enough lift to counterbalance its weight. If the speed decreases below this threshold, the aircraft will not have sufficient lift to remain in the air and will stall, which can lead to a loss of control. Understanding stalling speed is crucial for pilots as it directly relates to safe operation of the aircraft, particularly during critical phases of flight such as takeoff and landing.