Free wing aircraft having a free wing used as an air brake to shorten roll-out following touchdown
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United States of America Patent
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-
Apr 23, 1996
Grant Date -
N/A
app pub date -
Jun 15, 1994
filing date -
Jun 15, 1994
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A free wing aircraft including a free wing pivotally supported about a spanwise axis for flight in a free wing mode of operation with respect to the fuselage is disclosed. The free wing is capable of being deflected into a nose down configuration sufficient to create an aerodynamic braking effect to decrease air speed after landing upon roll-out. This aerodynamic braking effect can also be sufficient to create negative lift that plants the aircraft firmly down, increasing the coefficient of friction and allowing the aircraft brakes to be more effective relative to a fixed wing aircraft at touchdown.
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