Try 3 free questions from the EASA Part-66 Module 8 — Basic Aerodynamics exam. Covers atmosphere, airflow, lift, drag, stability, and high-speed flight.
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Question 1 of 3 — Section 8.1
The relationship between TAS and IAS is:
Explanation: TAS = EAS/√σ ≈ IAS/√σ (where σ = ρ/ρ₀). As density decreases, TAS exceeds IAS.
Question 2 of 3 — Section 8.2
Washout is a design feature where the wing is twisted so that the tip has a smaller angle of incidence than the root. This is done to ensure that:
Explanation: Washout (aerodynamic or geometric twist) reduces tip AoA relative to root. Root stalls first, preserving aileron control (ailerons are near the tips).
Question 3 of 3 — Section 8.3
Maximum range for a propeller aircraft occurs at:
Explanation: For props, specific range is best at VMD where drag is minimum (fuel flow ∝ power, distance/fuel maximised at VMD).
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