Ground Effect - Gatewing X100UAS System Manual

X100 system series
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6.6.6

Ground effect

When an aircraft is flying at a height that is approximately the same distance as its wingspan,
there is often a noticeable ground effect. This is caused primarily by the ground interrupting the
wingtip vortices behind the wing. With the wings close to the ground, wingtip vortices are
unable to form effectively due to the obstruction of the ground. This results in lower induced
drag, which increases the speed and lift of the aircraft.
2.0
Flight behavior
Landing
— 54 —
12 October 2012

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