CPL Aerodynamics (CADA)
Commercial Pilot Licence aerodynamics practice tests.
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What do Fowler flaps increase?
This is not a factor in this scenario
None of the options apply
Faster truly (lower true airspeed, TAS)
Wing area
What is meant by the term dynamic stability?
Longitudinal stability increases
Longitudinal stability decreases
Lateral stability increases
The oscillation or cycles that the aircraft experiences in returning to its trimmed condition
Dynamic stability describes how the aircraft returns to equilibrium over time — the nature of the oscillations (converging, constant, or diverging) following an initial static stability response.
Generally, does an aircraft tend to underbank in a level or descending turn?
Yes, it tends to underbank due to the outer wing travelling faster
Yes, it tends to underbank due to the inner wing generating more lift
No, the bank angle remains constant without pilot input
No, it tends to overbank
In a level or descending turn, the outer wing travels faster than the inner wing, generating more lift. This creates an overbanking tendency, not underbanking.
Which statement is not correct?
Contribution of the horizontal tail-plane to longitudinal stability varies according to the position of the centre of gravity position
An increase in wing angle of attack affects a change of only about 1/2 that at the tail-plane
Spiral stability reduces as altitude is gained
High aspect ratio wings reduce tail-plane contribution to longitudinal stability compared to low aspect ratio wings, as they increase the downwash angle for a given lift value
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