EASA Part-66 Module 13: Aircraft Aerodynamics, Structures & Systems
Avionics systems, autoflight, communications and instruments (B2).
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Interactive simulations
Manipulate the theory yourself, drag the controls and watch it respond.
Sample exam questions
Real Part-66-style multiple choice with explanations. Options are shuffled each attempt, just like the exam.
Theory of Flight, quiz
1. On a helicopter, the collective control changes:
The pitch of all rotor blades together (total lift)The pitch of one blade onlyThe tail-rotor speed only2. The cyclic control:
Tilts the rotor disc to move the helicopter horizontallyChanges engine RPMFeathers the tail rotor3. The tail rotor provides:
Anti-torque and yaw controlForward thrustMain lift4. 'Dissymmetry of lift' in forward flight is caused by:
The advancing blade seeing more airflow than the retreating bladeEngine vibration transmitted through the main transmission and into the rotor head in forward flightTail-rotor drag rising with forward speed and yawing the aircraft progressively out of balance5. A helicopter's maximum forward speed is ultimately limited by:
Retreating-blade stallTail-rotor failureFuel flow6. Fixed-wing ailerons control:
Roll (longitudinal axis)PitchYaw7. A stall occurs when the wing exceeds its:
Critical angle of attackMaximum altitudeNever-exceed speed8. The critical Mach number is where:
Airflow first reaches Mach 1 locally over the wingThe whole aircraft is supersonicThe engine surges
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