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A human-powered
plane provides some special challenges in stability and control.
As shown in the photograph of the Gossamer Albatross, the plane is flown close
to the ground at relatively low speed, has a large wing-span and a canard stabilizer
(front lifting surface) with about 12 % of the wing area. In sustained
flight, the available power is low and drag must be kept to a minimum.
Significant experimental input was required to develop the controls for this
plane.
The canard is hung from the boom and has two flexible tabs that
act as ailerons, banking the complete canard about its hanging bar. This alters
the direction of the lift vector, and the banked canard pulls the aircraft
nose in the direction of the desired turn. |
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