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3 meter bird on approach

Following pictures show the EV7b model (with feathers at the wing tip) during approach. With a few wing strokes it overcomes large distances (in this case nine wing beats). The different twisting of the wing during up- and downstroke can be well detected.

wing upstroke far away
wing upstroke
wing upstroke far
wing upstroke
wing downstroke in distance
wing downstroke
wing upstroke more nearly
wing upstroke
wing downstroke more near
wing downstroke
wing upstroke nearly
wing upstroke
wing upstroke nearby
wing upstroke
wing downstroke nearby
wing downstroke
wing downstroke close
wing downstroke
wing upstroke close
wing upstroke
wing downstroke from below
wing downstroke
wing upstroke frome below
wing upstroke
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