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Helicopter Ground School Questions and Answers with Certified Solutions
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Helicopter Ground School Questions and Answers with Certified Solutions What is the primary purpose of the cyclic control in a helicopter? To control the direction of flight by tilting the rotor disc Why does a helicopter require an anti-torque system? To counteract the torque produced b...

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  • March 3, 2025
  • 24
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers

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Helicopter Ground School Questions
and Answers with Certified Solutions
What is the primary purpose of the cyclic control in a helicopter?


✔✔ To control the direction of flight by tilting the rotor disc




Why does a helicopter require an anti-torque system?


✔✔ To counteract the torque produced by the main rotor and prevent uncontrolled yaw




What happens if a pilot loses tail rotor effectiveness?


✔✔ The helicopter may spin uncontrollably in the opposite direction of the main rotor




Why is translating tendency important in helicopter flight?


✔✔ It causes the helicopter to drift in the direction of tail rotor thrust, requiring compensation




What is the primary function of collective pitch control?


✔✔ To control altitude by changing the angle of attack of all rotor blades simultaneously




1

,Why must a pilot manage rotor RPM carefully?


✔✔ To maintain lift and prevent excessive strain on the engine and transmission




What is autorotation?


✔✔ A flight condition where the main rotor turns freely without engine power, allowing for a

controlled descent




Why is it important to perform a hover check before takeoff?


✔✔ To ensure the helicopter is balanced and operating correctly before transitioning to forward

flight




What happens if a helicopter enters vortex ring state?


✔✔ It loses lift due to disturbed airflow, causing an uncontrollable descent




Why should pilots avoid excessive forward cyclic input during takeoff?


✔✔ It can cause dynamic rollover or loss of tail rotor effectiveness




What is ground effect in helicopter flight?


2

, ✔✔ Increased lift and reduced drag experienced when hovering close to the ground




How does density altitude affect helicopter performance?


✔✔ Higher density altitude reduces lift, engine power, and overall performance




Why is retreating blade stall dangerous?


✔✔ It causes loss of control due to uneven lift distribution on the rotor disc




What should a pilot do in case of an engine failure in a single-engine helicopter?


✔✔ Immediately enter autorotation and look for a safe landing area




What is the purpose of a governor in a helicopter?


✔✔ To automatically adjust throttle to maintain constant rotor RPM




Why is center of gravity important in helicopter flight?


✔✔ It affects stability, control, and overall flight performance




What is the primary cause of low rotor RPM?

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