In this video I look at the issues of roll and yaw stability, why flying wings are often swept back, how sweep produces a dihedral effect and unwanted yaw-roll coupling, as well as ways to reduce the unwanted effects of sweep.

I hope I've made this simple enough to understand and it encourages you to experiment with designing or modifying your own RC flying wing planes.

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MiG 17 picture by Robert Lawton
https://commons.wikimedia.org/wiki/Us...

A350 picture by Kiefer
https://www.flickr.com/people/xingxiy...

Both used under Creative Commons license:
https://creativecommons.org/licenses/...