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12 Cards in this Set
- Front
- Back
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Should the flaps be raised straight after take off?
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No, the flaps should be raised in stages.
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What happens to the lift/drag ratio when flaps are lowered?
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The lift/drag ratio is always reduced.
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What effect do trailing edge flaps have on the centre of pressure?
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Move the C.O.P rearwards. This creates a nose down pitching moment.
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What effect do leading edge flaps have on the centre of pressure?
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Move the C.O.P forwards. This creates a nose pitching up moment.
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When trailing edge flaps are lowered what happens to the stalling angle of attack?
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The stalling A.O.A decreases.
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When leading edge flaps are lowered what happens to the stalling angle of attack?
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The stalling A.O.A increases.
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What is the mail function of a slat?
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To prolong the lift curve by delaying the stall until a higher A.O.A.
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What is a slot?
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The gap formed between the mail aerofoil and the leading edge slat.
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What does a spoiler do?
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Disrupts the airflow which therefore disrupts lift.
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What is the Lift:Drag Ratio?
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The ratio of CL to the CD of an aerofoil at various A.O.A.
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An Idea aerofoil requies:
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1. High maximum CL
2. Low minimum CD 3. High Maximum CL:Minimum CD Ratio 4. Sufficient Depth 5. Small + Stable Movement of the C.O.P |
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Always fly at the Angle of Attack that gives the:
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Best Lift to Drag Ratio
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