Front | Back |
Washout
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Angle of incidence at the tips is less than at the root
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Leading edge slats
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Reengergise flow over top surface of the wing, delaying breakup of streamline flow. Also improves outboard aileron effectiveness near the stall.
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Saw tooth
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Reduce span wise flow
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Wing fences
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Split wing into different sections, preventing span wise flow from thickening of the boundary layer
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Vortex generators
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Small plates that rise above wing surface which reenergise the boundary layer and inhibit outward flow
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Shark teeth
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Fitted to inner leading edges close to wing root to cause stall near the roots before the tips
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Leading edge devices, 3 types
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LE slots and slats and flaps
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Two types of LE Flaps
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Krueger flaps - increase camber, pivots down and forward from lower wing Droopsnouts
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LE devices work best at
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High AoAs
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LE flaps function
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Increase camber, wing area, and reduce stall speed
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LE slats/slots
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Re-energise the boundary layer, and reduce stall speed
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EAS compared to CAS
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EAS is always = to or less than CAS
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Climbing at fixed mach number, TAS will
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Reduce
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Climbing at IAS just below Vmo
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Will see MMO eventually exceeded
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Speed at the buffet boundary is called
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Vmo or Mmo, shown on the ASI as barbers pole
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