Rotorcraft Aerodynamic & Flight Control 0.0 / 5 ? EngineeringRotorcraft Aerodynamics & Flight ControlUniversityAQA Created by: Shawn HalleyCreated on: 03-11-21 13:08 What reduces blade drooping on engine start up? Droop Stop 1 of 14 On what type of rotor head can blade dampeners be found ? Fully Articulated rotor heads 2 of 14 Methods of stabilizing Bell stabilizing bar Hiller stabilizing bar 3 of 14 What are the stages or autorotation Entry The steady state decent Deceleration and touchdown 4 of 14 Rotor blade movements Feathering Flapping Drag/Lag lead 5 of 14 What are the types of rotor systems? Rigid semi-rigid Fully articulated 6 of 14 What helps to compensating for the dissymmetry of lift? Flapping 7 of 14 Purpose of the underslug design ? Blades are below the horizontal and inclined upwardsand reduces coriolis effect 8 of 14 State the kind of hinge the rigid rotor ha Feathering Hinge 9 of 14 What is the helicopter primary aerofoil ? The main rotor 10 of 14 Define relative wind airflow which is moving parallel to and opposite to the flight path of the blade 11 of 14 What is the pitch angle? is the angle between the chord of the rotor and the reference plane, 12 of 14 Why are Symmetrical Aerofoils used on helicopters? are used to limit CP movement with changes in angle of attack 13 of 14 What is feathering ? This is the rotation of the blade about its pitch axis. It is controlled by both collective and cyclic control inputs 14 of 14
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