NCAA CPL (H) Theory Practice Questions - NCAA Commercial Pilot Licence (Helicopter) Theory Exam (Nigeria) Exam

Why does a helicopter require less power to hover In Ground Effect (HIGE) than Out of Ground Effect (HOGE)?

Because ground effect increases main rotor RPM automatically Because the proximity of the ground reduces induced flow velocity and tip vortex strength, increasing rotor efficiency Because engine air intake pressure is doubled by ground reflection Because ground effect eliminates tail rotor anti-torque power requirements

Correct Answer:

Because the proximity of the ground reduces induced flow velocity and tip vortex strength, increasing rotor efficiency

Access more questions from this quiz

Continue to NCAA CPL (H) Theory Practice Questions - NCAA Commercial Pilot Licence (Helicopter) Theory Exam (Nigeria) Exam for more practice questions and the full quiz experience.

Access More Questions