DGCA CAR 66 MODULE 12 P1

DGCA CAR 66 MODULE 12 HELICOPTER AERODYNAMICS, STRUCTURES AND SYSTEMS PART 1

(12.1 Theory of Flight — Rotary Wing Aerodynamics 12.2 Flight Control Systems 12.3 Blade Tracking and Vibration Analysis 12.4 Transmissions)

12.1 Theory of Flight — Rotary Wing Aerodynamics 
Terminology;
Effects of gyroscopic precession;
Torque reaction and directional control;
Dissymmetry of lift, Blade tip stall;
Translating tendency and its correction;
Coriolis effect and compensation;
Vortex ring state, power settling, overpitching;
Auto-rotation;
Ground effect.

12.2 Flight Control Systems 

Cyclic control;
Collective control;
Swashplate;
Yaw control: Anti-Torque Control, Tail rotor, bleed air;
Main Rotor Head: Design and Operation features;
Blade Dampers: Function and construction;
Rotor Blades: Main and tail rotor blade construction and attachment;
Trim control, fixed and adjustable stabilisers;
System operation: manual, hydraulic, electrical and flyby-wire;
Artificial feel;
Balancing and Rigging.

12.3 Blade Tracking and Vibration Analysis 
Rotor alignment;
Main and tail rotor tracking;
Static and dynamic balancing;
Vibration types, vibration reduction methods;
Ground resonance.

12.4 Transmissions :
Gear boxes, main and tail rotors;
Clutches, free wheel units and rotor brake.
Tail rotor drive shafts, flexible couplings, bearings,

vibration dampers and bearing hangers

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