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Old 12-10-2003 | 04:50 PM
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Jimmbbo
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Default Sealing control surface hinge lines
ORIGINAL: Yub, yub, cmdr!

I don't get it.

I have no clue why I would seal the gaps in the control surfaces (Hey, I'm a beginner too!)

Thanx

Control surfaces modify the camber of the airfoil, increasing pressure on one side and decreasing pressure on the other. If the high pressure air on one side of the control surface leaks to the low pressure side, the control surface effectiveness is lessened.... Sealing the hinge line minimizes the leakage, improving control surface effectiveness....

HTH

Jim
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