EASA 66 Module 17 explains the Propeller, its fundamentals, construction, maintenance, storage, and several other topics. This is a very detailed CBT which presents detailed descriptions of propellers that apply to both turbine engine and piston engine aircraft.
- 17.1 Fundamentals
- Blade element theory;
High/low blade angle, reverse angle, angle of attack, rotational speed;
Aerodynamic, centrifugal, and thrust forces;
Relative airflow on blade angle of attack;
Vibration and resonance.
- 17.2 Propeller Construction
- Construction methods and materials used in wooden, composite and metal propellers;
Blade station, blade face, blade shank, blade back and hub assembly;
Fixed pitch, controllable pitch, constant speeding propeller;
- 17.3 Propeller Pitch Control
- Speed control and pitch change methods;
Feathering and reverse pitch;
- 17.4 Propeller Synchronising
- Synchronising and synchrophasing equipment.
- 17.5 Propeller Ice Protection
- Fluid and electrical de-icing equipment.
- 17.6 Propeller Maintenance
- Static and dynamic balancing;
Assessment of blade damage, erosion, corrosion, impact damage, de-lamination;
Propeller treatment/repair schemes;
Propeller engine running.
- 17.7 Propeller Storage and Preservation
- Propeller preservation and de-preservation.