Private Pilot License (PPL) Aerodynamics Practice Exam

What is a primary purpose of wing flaps?

1. To increase the aircraft's cruising speed

2. To enable steeper approaches to land without increasing airspeed

3. To reduce the total lift generated

4. To enhance the aircraft's roll rate

The correct answer is: To enable steeper approaches to land without increasing airspeed

The primary purpose of wing flaps is to enable steeper approaches to land without increasing airspeed. When flaps are deployed, they increase the camber and surface area of the wing, which enhances lift at lower speeds. This is particularly beneficial during landing, as it allows the aircraft to maintain or even increase lift while reducing airspeed. By deploying flaps, pilots can approach the runway at steeper angles without the risk of stalling, allowing for more precise landings in confined spaces or under challenging conditions. This capability is crucial for ensuring safety during critical phases of flight, such as landing. Thus, the use of flaps effectively facilitates a safer, more controlled approach for the pilot.