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Propeller

Basic Module 17

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Applicability

This module is required for the following AML categories:

M17A

M17B

Topics

M17A

Issued on Regulation (EU) 2018/1142

  • Blade element theory;
  • High/low blade angle, reverse angle, angle of attack, rotational speed;
  • Propeller slip;
  • Aerodynamic, centrifugal, and thrust forces;
  • Torque;
  • Relative airflow on blade angle of attack;
  • Vibration and resonance.
  • 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;
  • Propeller/spinner installation.
  • Speed control and pitch change methods, mechanical and electrical/electronic;
  • Feathering and reverse pitch;
  • Overspeed protection.
  • Synchronising and synchrophasing equipment.
  • Fluid and electrical de-icing equipment.
  • Static and dynamic balancing;
  • Blade tracking;
  • Assessment of blade damage, erosion, corrosion, impact damage, delamination;
  • Propeller treatment/repair schemes;
  • Propeller engine running.
  • Propeller preservation and depreservation.

Examination

  • AML Cat B1.1
    32 multi-choice and 0 essay questions.
    Time allowed: 40 minutes.