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NASA safe wing

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Page 1: Nasa

NASA safe wing

Page 2: Nasa

Grim statistical data of nearly 30% fatal accidents involving light and full scale aircrafts are based on sporadic reasons of stalling and spinning at low altitudes , ground impacts before spinning fully develops.

Proposed safe wing design by NASA to terminate these fatal accidents caused due to poor wing designs , etc.....

Why we need to understand this?

Page 3: Nasa

Speed –AoAStalling –low speed limitCentrifugal force-stalling speed limitCessna 170-60 degrees 40%Lowering ailerons at high stalling AoA

contents

Page 4: Nasa

Fixed or refractable LE slotsWing wash out o reduce tip anglesGreater camber at wing tipsSlot –lip ailerons

Performance down roar Spin and stall controlled

Remedies of spin /stall effects

Page 5: Nasa

Increasing droop ahead of ailerons-sunbird , snowy owl , osprey....

Delays stall-2 AOA of stallRecovers spin using aileronsIneffective ailerons in snowy owl at high

altitudeStyrofoam-author uses

NASA’s solutions