Private Pilot License (PPL) Aerodynamics Practice Exam

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Study for the Private Pilot License Test in aerodynamics. Engage with quizzes featuring multiple choice questions with hints and explanations. Prepare thoroughly for your PPL exam!

Practice this question and more.

What is the most likely problem caused by ground effect?

Failing to achieve altitude
Becoming airborne before reaching the recommended takeoff speed
Increased fuel consumption
Overloading the aircraft

The correct answer is: Becoming airborne before reaching the recommended takeoff speed

The correct answer focuses on the phenomenon known as ground effect, which occurs when an aircraft is flying close to the ground, typically within one wingspan distance. Ground effect results in an increase in lift and a decrease in induced drag because of the way air behaves around the wings when close to a surface. This effect can lead to a pilot becoming airborne before reaching the aircraft's recommended takeoff speed. While the aircraft may attain a certain amount of lift prematurely due to ground effect, it might not have sufficient speed or airflow over the wings to maintain stable flight, which can be detrimental during takeoff. It's crucial for pilots to be aware of this possibility because taking off at too low a speed can lead to a stall shortly after becoming airborne. Understanding ground effect is vital for safe aircraft operation, particularly during takeoff and landing phases, to ensure that the aircraft is fully controlled and capable of sustained flight.