Willard Custer demonstrates his Custer Channel Wing.
More: https://en.wikipedia.org/wiki/Custer_Channel_Wing
Previously:
NASA composite cellular morphing wing - GIF
Narushevich Ring Wing - video
Yves Rossy jet wing - photo and video
Riout 102T Alérion Ornithopter flapping wing airplane - photo
1928 bird-shaped wing aircraft crash - video and photo
1938 extending wing fighter plane - photo
Pivoting wing NASA airplane - GIF and video
Boeing 777 wing flexibility test to failure - video
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