DGCA CPL Technical General Practice Questions - DGCA Commercial Pilot License (CPL) Technical General Exam

How does ground effect affect the aerodynamic performance of an aircraft during takeoff and landing?

It decreases lift and increases induced drag due to ground proximity. It increases induced drag and decreases thrust required. It reduces wingtip vortices, decreasing induced drag, which results in a reduction in thrust required to maintain altitude. It increases parasite drag, requiring more power to keep the aircraft airborne.

Correct Answer:

It reduces wingtip vortices, decreasing induced drag, which results in a reduction in thrust required to maintain altitude.

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