Assembly & Rigging C Questions and Answers Latest Version Graded A+

Assembly & Rigging C Questions and Answers Latest Version Graded A+ Why must ground resonance be avoided? It can cause severe vibrations leading to structural failure What is the purpose of the anti-torque system? To counteract main rotor torque and maintain heading control Why is it important to check rotor blade lead-lag movement? To prevent excessive stress and maintain balance What role do hydraulic servos play in flight control? They assist pilot inputs by reducing control forces Why must tail rotor pedals be properly rigged? To ensure smooth and accurate yaw control 2 What happens if a main rotor blade is too stiff? It can cause excessive stress on the rotor hub and airframe Why is periodic rigging adjustment necessary in helicopters? To compensate for wear and maintain precise control What is the function of a mixing unit in helicopter controls? To coordinate cyclic, collective, and anti-torque inputs Why should rotor blade deformations be carefully inspected? To prevent aerodynamic imbalances and structural failure What happens if the swashplate bearing fails? Loss of smooth control input transfer to the rotor system How does excessive play in control rods affect flight? It causes sluggish response and potential instability 3 Why is careful alignment of the tail boom necessary? To maintain proper tail rotor function and prevent misalignment issues What is the function of a rotor brake in helicopters? To slow or stop rotor rotation after landing What is the purpose of the main rotor in a helicopter? To provide lift and control movement Why is tracking important in rotor blade maintenance? To ensure all blades follow the same path for smooth operation What is the function of a swashplate in a helicopter? To transfer pilot control inputs to the rotating blades Why is dynamic balancing necessary for helicopter rotors? To minimize vibrations and ensure stable flight 4 What happens if a helicopter’s control cables are too loose? It reduces responsiveness and can affect maneuverability Why is proper tensioning of flight control cables critical? To maintain accurate control input and prevent slack-induced lag What is the purpose of dampers in rotor systems? To absorb vibrations and stabilize rotor motion