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10 Cards in this Set
- Front
- Back
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What does 'Aileron Lockout' refer to?
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The system locking the OUTBOARD ailerons during high speed flight to minimize some of the roll effect.
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At what stages of flight are the inboard ailerons active?
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At all stages of flight.
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What other device assists the aileron in rolling the aircraft?
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Spoilers - rise up on the down-going wing.
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What is 'Spoiler Blowdown'?
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The design of spoilers to be progressively blown down by increasing air loads on them.
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Describe "Spoiler Walk Down"
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The tendency for the aircraft to pivot around the flap area of the wing with spoiler activated - increasing drag and increasing altitude loss.
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What purpose does a rudder ratio changer serve?
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Varies the amount of rudder travel that is applied at various speeds, to minimize rick of over-stressing.
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On an aircraft with a split rudder, what happens if one rudder ratio changer were to fail.
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Both rudders would be out of whack, a comparator would pick this up, and "rudder ratio" warning would be displayed in cockpit.
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Yaw dampers are a device installed to combat what aerodynamic tendency?
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Dutch Roll.
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What is the difference between a series type and a parallel type yaw damper?
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Series does not move rudder pedals, can be used in all stages of flight.
Parallel moves rudder pedals, must be OFF for take-off and landing. |
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What are 4 reasons for the use of a moveable stabilizer in a large jet aircraft?
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1. Using elevator trim for larger periods causes trim drag.
2. Need to be able to cater for large change in C o G. 3. Need to be able to cater for changes in C o P at high mach numbers. 4. To counter changes in pitch trim as leading and trailing edge flaps are deployed. |
