smith123
Joined: 09 Jul 2011
Posts: 168
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 Posted: Sat Dec 31, 2011 8:39 am Post subject: flap question |
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when flaps are extended to say first level above the speed it is allowed, what risks are we taking? poh always or may be the most limits the speed regardless of the flap levels, (ie white arc at 70, flaps extended say one notch at somewhere between 80-90 knots for aerodynamic braking)
1. higher torsion on wing structure
2. flap hinges may be damaged,
3. the main spar(s) may bend,
4. skin may buckle or excessively bend btw ribs due to pressure distribution change,
any other consequences that i cant see? some instructors does it and defend themselves like "if the wings will be damaged let it happen now, the aircraft is stronger than you think", as an engineer and amateur i dont agree with this statement,
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