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MODULE 17A — PROPELLER Category A: 20 multi-choice and 0 essay questions. Time allowed 25 minutes. Category B1: 32 multi-choice and 0 essay questions. Time allowed 40 minutes.
MODULE 17A. PROPELLER Note: This module does not apply to category B3. Relevant subject matters for category B3 are defined in module 17B. LEVEL A B1
17.1 Fundamentals 1 2 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.
17.2 Propeller Construction 1 2 Construction methods and materials used in wooden, composite and metal propellers; Blade station, blade face, blade shank, blade back and hub assembly;
17.3 Propeller Pitch Control 1 2 Speed control and pitch change methods, mechanical and electrical/electronic; Feathering and reverse pitch; Overspeed protection.
17.4 Propeller Synchronising — 2 Synchronising and synchrophasing equipment.
17.7 Propeller Storage and Preservation 1 2 Propeller preservation and depreservation
MODULE 17B — PROPELLER Category B3: 28 multi-choice and 0 essay questions. Time allowed 35 minutes.
MODULE 17B. PROPELLER Note: The scope of this Module shall reflect the propeller technology of aeroplanes pertinent to the B3 category. LEVEL B3 17.1 Fundamentals 2 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
17.2 Propeller Construction 2 Construction methods and material 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.
17.3 Propeller Pitch Control 2 Speed control and pitch change methods, mechanical and electrical/electronic; Feathering and reverse pitch; Overspeed protection.
17.4 Propeller Synchronising 2 Synchronising and synchrophasing equipment.
17.5 Propeller Ice Protection 2 Fluid and electrical de-icing equipment.